Abstract

The disclosure concerns a flying-capacitor inverter, comprising a switch leg with four switches, a flying capacitor connected to the switch leg, an output between pairs of the switches, and a control device connected to each of the four switches, wherein the control device is configured to employ phase-shift modulation to switch the four switches such that switching signals for a first switch and a fourth switch of the four switches are phase shifted to the switching signals for a second switch and a third switch of the four switches. The disclosure also concerns a multi-level phase-shift converter comprising the flying-capacitor inverter, as well as a method for controlling the flying-capacitor inverter and/or the multi-level phase-shift converter.

IPC Classes  ?

• H02M 7/483 - Converters with outputs that each can have more than two voltage levels
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 7/5395 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
• H02M 1/088 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices

Abstract

The disclosure concerns a totem pole PFC with a surge protection circuit, wherein the totem pole PFC comprises at least one bypass-diode branch with at least two bypass-diodes, at least one switch branch with at least two switches, at least one polarity changer branch with at least two switches, an input bridge connecting the switch branch(es) with an input voltage source, and at least one bypass branch connecting the input bridge in parallel with the bypass-diodes of the bypass-diode branch(es). The surge protection circuit comprises at least one current sensor configured to detect a current flowing through at least one of the bypass-diodes of the bypass-diode branch(es), and a control unit configured to receive a detected current value from the current sensor(s) and to switch at least one switch of the totem pole PFC at least in dependence on the detected current value.

IPC Classes  ?

• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H02M 3/158 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

The disclosure concerns a full-bridge converter (1) that is capable to provide different operation and transition modes that lead to reduced losses and stressing of the components of the full-bridge converter (1). This is achieved by a clamping circuit and applying specific switching patterns to the transistors (S1, S2, S3, S4) of a full bridge of the full-bridge converter (1).

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 7/5387 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

A foreign object detection device for a wireless power transfer system for inductive power transfer from a primary part to a secondary part across an airgap, includes a sensor module with a multitude of detection cells. In order detect a foreign object near a detection cell, a stimulation signal is applied to a detection cell by means of a stimulation unit and the time response of the detection cell is measured with a measurement unit and compared to a reference time response of that detection cell that has been previously sensed by a control and signal processing unit.

IPC Classes  ?

• H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
• H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type

Abstract

The disclosure concerns a converter component, especially for LLC resonant converters, comprising a magnetic core with at least three legs, at least one first electrical winding, and at least one second electrical winding. Therein, the second 5 electrical winding is wound so as to at least once and at least partially surround at least a first leg and a second leg of the at least three legs of the magnetic core. The disclosure also concerns a converter comprising the converter component.

IPC Classes  ?

• H01F 30/06 - Fixed transformers not covered by group characterised by the structure
• H01F 27/24 - Magnetic cores
• H01F 27/28 - Coils; Windings; Conductive connections
• H02M 3/00 - Conversion of dc power input into dc power output

Abstract

The present disclosure provides a bidirectional LLC resonant converter and an integrated magnetic component for such a bidirectional LLC resonant converter. In order to increase the power density of such a converter, the I cores of the corresponding conventional converter are removed and the remaining windings (P1, S1, Lr1, Lr2) for the transformer and the series resonant chokes are arranged and connected such that the magnetic fluxes generated in the yokes of the transformer core elements (E3, E4) at least partially compensate each other. In another example, the windings and the core elements of the series resonant chokes are removed as well and the series resonant inductances are implemented by windings air gaps provided between the primary and the secondary windings wound on the transformer core elements.

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H01F 27/38 - Auxiliary core members; Auxiliary coils or windings
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• B60L 53/20 - Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle

Abstract

The present disclosure concerns a slotfiller (1) for closing a slot (21) in a computer-rack-insertable component (20), wherein the slotfiller (1) comprises at least two finger-grippable cup elements (2), and a hinge (3) connecting the cup elements (2). Therein, the slotfiller (1) is configured to be insertable into the slot (21) by pressing of the cup elements (2) towards each other and is configured to at least partially cover an open surface area of the slot (21) by releasing of the cup elements (2) in the inserted state. The present disclosure also concerns a computer-rack-insertable component (20) and a computer rack (100), each comprising at least one slotfiller (1).

IPC Classes  ?

• H05K 7/14 - Mounting supporting structure in casing or on frame or rack
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

The present disclosure concerns a choke assembly (1), especially for an electric conversion device (100), comprising at least one rake-shaped core (2) respectively including a body portion (3), at least two winding legs (4), around each of which at least one electrical winding (5) is wound, and at least one return leg (6), wherein the at least two winding legs (4) and the at least one return leg (6) extend from the body portion (3) in a first direction (11), and at least one yoke core (7) connected to at least one rake-shaped core (2) and configured to close a magnetic circuit (8) between the at least two winding legs (4) and the at least one return leg (6) of the at least one rake-shaped core (2). The present disclosure also concerns an electric conversion device comprising the choke assembly (1).

IPC Classes  ?

• H01F 27/26 - Fastening parts of the core together; Fastening or mounting the core on casing or support
• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
• H01F 27/29 - Terminals; Tapping arrangements

Abstract

A DC/DC-Converter, including a transformer that includes a primary side which includes n primary coils and a secondary side which includes n secondary coils, wherein the primary side is terminated by n primary capacitors, which are connected in a first polygon arrangement, each primary capacitor connecting two of the primary coils. The first converter circuit is connected in between primary side of the transformer and two primary side contacts, and includes a first multilevel converter configured to work as a inverter when the DC/DC-converter is used in a forward mode, a second converter circuit connected in between the secondary side of the transformer and two secondary side contacts and is configured to work as a rectifier when the DC/DC-converter is used in a forward mode; and a control circuit configured to control the first multilevel converter of the first converter circuit to work as the inverter in the forward mode.

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 3/00 - Conversion of dc power input into dc power output
• H02M 7/483 - Converters with outputs that each can have more than two voltage levels

Abstract

The present disclosure concerns a magnetic component (1), especially for a wireless charging transformer, including a magnetic core (2), at least one flat pre-wound major electrical coil (3) disposed on the magnetic core (2) and at least one minor electrical coil (4) wound around the magnetic core (2). The present disclosure also concerns a transformer (100) including the magnetic component (1) as a primary magnetic component (101).

IPC Classes  ?

• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
• H01F 38/14 - Inductive couplings
• H01F 27/26 - Fastening parts of the core together; Fastening or mounting the core on casing or support
• H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

Abstract

Provided are a sensor arrangement for a foreign object detection device for a wireless power transfer system, a foreign object detection and a primary part for a wireless power transfer system. The sensor arrangement includes multiple detection cells, each including a sense coil including a winding spirally wound in a plane and having multiple turns. Multiple input leads and one or more output leads are provided such that each detection cell may be connected to a current input and a current output. The sense coil of at least one detection cell includes an outer coil section and an inner coil section arranged inside the outer coil section, where a first distance between an outermost turn of the inner coil section and an innermost turn of the outer coil section is at least twice a largest distance between two turns of the outer coil section.

IPC Classes  ?

• H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
• H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

Abstract

The present disclosure concerns a method of manufacturing an electronic device, where the electronic device includes at least one electronic component with at least one electrical winding, and at least one heat dissipation mass coating, and the method includes inserting the at least one electronic component into a cavity; pouring, before or after the insertion of the electronic component, a heat dissipation mass into the cavity so as to at least partially fill the cavity and at least partially cover the electronic component with the heat dissipation mass; removing the electronic device, namely, the electronic component covered by the heat dissipation mass coating, from the cavity. The present disclosure also concerns an electronic apparatus including at least one electronic device manufactured by the foregoing method.

IPC Classes  ?

• H01F 41/00 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
• H01F 27/02 - Casings
• H01F 27/08 - Cooling; Ventilating

Abstract

The disclosure concerns a magnetic component and a power converter including the same. The magnetic component includes at least one magnetic core, where at least one gap is formed between end surfaces, especially opposing end surfaces, of the magnetic core(s). The magnetic component further includes at least one electrical winding surrounding at least a part of the at least one magnetic core, and a shielding device for shielding fringing fields of the at least one gap. The shielding device includes: a holding unit attached to the at least one magnetic core and/or to the at least one electrical winding in a periphery of the at least one gap; and at least one shield member attached to the holding unit. The at least one shield member is configured to shield gap fringing fields in the periphery of the gap.

IPC Classes  ?

• H01F 27/36 - Electric or magnetic shields or screens
• H01F 27/24 - Magnetic cores
• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support

Abstract

Full bridge converter-circuit having a H-bridge, comprising a control circuit for operating the H-bridge in a first operation mode or a second operation mode, wherein the control circuit is configured that between switching from the first operation mode to the second operation mode a morphing operation mode is applied in which a positive inverter voltage pulse length on a first half-bridge of the H-bridge is determined on the basis of a negative inverter voltage pulse length on a second half-bridge of the H-bridge.

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 3/00 - Conversion of dc power input into dc power output
• H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters

Abstract

The device to estimate the lifetime consumption of one or more electrolytic capacitors comprises a temperature sensor which is thermally insulated from the ambient by being arranged either between two equal electrolytic capacitors connected in parallel with each other or on the case of an electrolytic capacitors and where it is covered with a layer of thermally insulating material. The device comprises further a controller which is suitable to estimate the lifetime consumption based on the measurement data of the temperature sensor.

IPC Classes  ?

• G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
• G01R 31/64 - Testing of capacitors

Abstract

In order to balance the thermal stress of the switches (S1-S4) of the two legs of an inverter full bridge (4), the driving signals are generated using an up-down counter having a modulation period Tmod of twice the period T of the input voltage (Vin). The up-down counter has a first compare value (41) of D/4 and a second compare value (42) of (2+D)/4, where D is the duty cycle and where the second half bridge is phase shifted by the period T.

IPC Classes  ?

• H02M 1/32 - Means for protecting converters other than by automatic disconnection
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 7/219 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration

Abstract

A power converter-circuit (100) having a transformer (T), comprising a snubber-circuit (Csn, DSn,S3, S3, DSn,S4) for suppressing voltage peaks on a secondary side of the transformer (T) that comprises a snubber capacitor (Csn); and an auxiliary DC-DC converter (101) having a first input connected with the snubber capacitor (Csn) and a first output connected with a first output (VOut) of the power converter-circuit (100). This circuit increases efficiency of electrical conversion and reduces thermal losses.

IPC Classes  ?

• H02M 1/34 - Snubber circuits
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 3/00 - Conversion of dc power input into dc power output

Abstract

The invention relates to a resonator of a wireless power transfer system (1), including a magnetic core in the form of an H-core with two yokes and at least one limb (52) connecting the yokes where a winding (53) is wound on the limb (52) of the core. The winding (53) includes a PCB (56.1) on one side of the limb (52) and a PCB (56.2) on another side of the limb (52) where the turns of the coil are formed by traces on the first PCB (56.1) and on the second PCB (56.2) that are connected to each other by soldering pins (57) that are soldered into corresponding holes of the PCBs (56.1, 56.2). The traces on the PCBs (56.1, 56.2) may be provided on a single conductive layer of the PCBs (56.1, 56.2) or the PCBs may be multilayer PBS, where each turn section between two soldering pins (57) on one of the PCBs (56.1, 56.2) may include several strands including one or more traces on one or more conductive layers.

IPC Classes  ?

• H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
• H01F 27/255 - Magnetic cores made from particles
• H01F 38/14 - Inductive couplings

Abstract

In a wireless power transfer arrangement (1) power is wirelessly transferred from a primary side (2) to a secondary side (3) across an airgap (8) by means of a primary resonator (6) that generates a magnetic field (9) and a secondary resonator (10) that receives the power by picking up the magnetic field (9). The secondary side (3) includes an output stage (11) that receives the AC power provided by the secondary resonator (10) and generates a DC output (13) to be provided to a load. A current sensing arrangement (18) senses the AC current flowing from the secondary resonator (10) to the output stage (11) and provides a current sense signal (16) to a power transfer controller (15) that controls the power transfer of the wireless power transfer arrangement (1) based on the current sense signal (16). And the current sense signal (16) is provided to a switching controller (20) that controls the switching of a synchronous rectifier of the output stage (11) that converts the AC power (12) provided by the secondary resonator (10) to the DC output (13).

IPC Classes  ?

• H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
• H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• B60L 53/12 - Inductive energy transfer
• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 38/14 - Inductive couplings
• H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

c) and the current output (143). According to the invention at least one detection cell (144.1-144.9) includes a decoupling element (D1-D9) connected in series to its resonant tank. The invention further relates to foreign object detection device for a wireless power transfer system, a primary part of a wireless power transfer system, a wireless power transfer system and a method for detecting a foreign object.

IPC Classes  ?

• H02J 50/60 - Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
• H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
• B60L 53/124 - Detection or removal of foreign bodies
• G01V 3/10 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
• H01F 38/14 - Inductive couplings

Abstract

According to the invention a packaged inductive component comprises an inductive element and an electrically insulating packaging enclosing the inductive element. The packaging comprises a first area consisting of a thermally conductive material and a second area consisting of a thermally insulating material. The first area has a first surface being an outside surface of the packaged inductive component. The outer surfaces of the packaged inductive component are free of any electrical potential. The packaged inductive component allows for an improved heat dissipation. In particular, heat generated by power losses in the inductive element dissipates through the first area of the packaging to an outside surface of the packaged inductive component. This leads to an affordable packaged inductive component. The inductive element can be for example an inductor or a transformer.

IPC Classes  ?

• H01F 27/22 - Cooling by heat conduction through solid or powdered fillings
• H01F 27/02 - Casings
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
• H02M 7/00 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A method for providing an output power of a switched mode power converter comprises the steps of determining a block length and, if a set value of the output power is below a first power threshold, preventing a power flow through the converter in each period of the multiphase AC voltage for at least one blocking interval. Each blocking interval has a duration of one block length. The switched mode power converter has a multiphase AC side with a number N of conductors for receiving a multiphase AC voltage. The number N of conductors is at least three. Power flows into the switched mode power converter through a combination of current-carrying conductors. The block length is defined by a time span between two subsequent changes of the combination of the current-carrying conductors.

IPC Classes  ?

• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H02M 7/06 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
• H02M 7/44 - Conversion of dc power input into ac power output without possibility of reversal by static converters
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

The bridge circuit comprises input terminals (102.1, 102.2) for connecting a power source (103), a first branch (104) connected between the input terminals (102.1, 102.2). The first branch includes a first and a second section (108.1, 108.2). The first section (108.1) includes a first switch (107.1) and the second section (108.2) includes a second switch (107.2). The method comprises the steps of determining a measured value by measuring a current flowing in or a voltage across one of the two sections (108.1, 108.2), comparing the measured value with a threshold and controlling a switching of the first and the second switch (107.1, 107.2) of the first branch (104) in dependency of a result of said comparison.

IPC Classes  ?

• H02M 7/5387 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
• G05F 1/46 - Regulating voltage or current wherein the variable actually regulated by the final control device is dc
• H02M 1/32 - Means for protecting converters other than by automatic disconnection
• H03K 17/10 - Modifications for increasing the maximum permissible switched voltage

Abstract

The invention related to an integrated magnetic component for a switched mode power converter. The integrated magnetic component comprises a single magnetic core structure formed by magnetic core elements, wherein at least one of the magnetic core elements is a leg-core-element with a flange and one or more legs are arranged on one side of the flange. The magnetic core elements of the single magnetic core structure are linearly stacked. The integrated magnetic component further comprises an isolating transformer with a higher current transformer winding arranged on at least one leg of the magnetic core elements, a lower current transformer winding arranged on at least one leg of the magnetic core elements and a first filter inductor comprising a first filter winding, arranged on at least one leg of the magnetic core elements. Herein the higher current transformer winding and the filter winding comprise at least an edgewise wound winding part. The invention further relates to a switched mode power converter.

IPC Classes  ?

• H01F 3/10 - Composite arrangements of magnetic circuits
• H01F 27/24 - Magnetic cores
• H01F 27/06 - Mounting, supporting, or suspending transformers, reactors, or choke coils
• H01F 27/34 - Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 27/40 - Structural association with built-in electric component, e.g. fuse
• H02M 3/337 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

The invention concerns a wireless power transfer arrangement (1) including a primary side (2) and a secondary side (3) where the primary side includes an input stage (5) for converting an input power to an AC primary output and a primary resonator (6) for receiving the AC primary output and inducing a magnetic field (9) for wireless power transfer through an air gap (8). The secondary side (3) includes a secondary resonator (10) for converting the power received through the magnetic field (9) to an AC secondary output and an output stage (11) for converting the AC secondary output to a DC secondary output. A controller (15) is adapted to control independently of each other a frequency of the AC primary output to be at a resonance frequency of the resonators and the power transferred from the primary side (2) to the secondary side (3) by controlling the voltage or the current of the AC primary output. By locking the frequency of the system to the resonance frequency enables any easy power control simply by controlling the current or the voltage of the primary resonator (5).

IPC Classes  ?

• B60L 53/12 - Inductive energy transfer
• H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices

Abstract

In a system for wirelessly transferring power from a primary side across an airgap to a secondary side, the secondary side includes two parallel resonating circuits (27) each including two parallel resonating paths with a series connection of a resonating inductor (28), and a resonating capacitor 29. A rectifier (21) is connected to the output of each resonating path for converting the AC output (12′) of the resonating paths to a DC output (13′). The outputs of the rectifiers (21) are connected in parallel to provide the AC output power (13) to a load such as a battery or the like. Each resonating path further includes a symmetry inductance connected in series to improve current sharing among the resonating paths and to reduce the higher harmonic portion in the resonating paths. For balancing the flux each resonating circuit 27 includes in a preferred embodiment of the invention a symmetry winding (30) wound on the same core as the resonating inductor 28 of that resonating path where all symmetry windings (3) are connected in parallel to ensure optimal flux sharing.

IPC Classes  ?

• H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
• B60L 53/122 - Circuits or methods for driving the primary coil, i.e. supplying electric power to the coil
• H01F 27/245 - Magnetic cores made from sheets, e.g. grain-oriented
• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 38/14 - Inductive couplings
• H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
• H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
• B60L 53/12 - Inductive energy transfer
• H02J 50/70 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields

Abstract

A method for estimating a property of a signal (1) sensed in an electrical system, comprises the steps of sensing the signal (1) and estimating a fundamental period of a fundamental of the signal (1) by comparing the sensed signal (1) with at least one threshold (2) to detect threshold crossings and estimating the fundamental period from the threshold crossings. The signal property is then estimated from the fundamental period and/or from the sensed signal (1) during an interval of a length of the fundamental period. An electronic device according to the invention comprises a micro controller and/or an analogue circuitry which performs the method for estimating a property of a signal. Preferably, the micro controller and/or analogue circuitry controls other parts of the electronic device depending on the results obtained by the method for estimating a property of a signal.

IPC Classes  ?

• G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
• G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
• G01R 23/02 - Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
• G01R 19/175 - Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero
• G01R 23/12 - Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into phase shift
• G01R 23/14 - Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by beat-frequency comparison

Abstract

According to the invention, a current measurement circuit for providing a measurement signal for a controller for controlling a switching of power switches of a power converter comprises a first current sensing circuit for sensing a first bidirectional current representative of a current through a first power switch of the power converter. The first current sensing circuit is being adapted to provide a first sensing signal indicative of the first bidirectional current. The current measurement circuit further comprises a second current sensing circuit for sensing a second bidirectional current representative of a current through a second power switch of the power converter. The second current sensing circuit is adapted to provide a second sensing signal indicative of the second bidirectional current.

IPC Classes  ?

• G01R 19/14 - Indicating direction of current; Indicating polarity of voltage
• H02M 7/219 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
• H02M 1/32 - Means for protecting converters other than by automatic disconnection
• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

load). Furthermore the invention relates to a corresponding power converter (1) for connecting to a grid (3), preferably it relates to a solar power converter. This power converter (1) includes a load current sensor (142), an output voltage sensor (143) and a load current controller (141).

IPC Classes  ?

• H02M 7/537 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
• H02M 7/5387 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
• H02J 3/12 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
• G05F 1/44 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only

Abstract

The invention related to an integrated magnetic component for a switched mode power converter. The integrated magnetic component comprises a single magnetic core structure formed by magnetic core elements, wherein at least one of the magnetic core elements is a leg-core-element with a flange and one or more legs are arranged on one side of the flange. The magnetic core elements of the single magnetic core structure are linearly stacked. The integrated magnetic component further comprises an isolating transformer with a higher current transformer winding arranged on at least one leg of the magnetic core elements, a lower current transformer winding arranged on at least one leg of the magnetic core elements and a first filter inductor comprising a first filter winding, arranged on at least one leg of the magnetic core elements. Herein the higher current transformer winding and the filter winding comprise at least an edgewise wound winding part. The invention further relates to a switched mode power converter.

IPC Classes  ?

• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 27/24 - Magnetic cores
• H01F 27/06 - Mounting, supporting, or suspending transformers, reactors, or choke coils
• H02M 3/337 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
• H01F 27/34 - Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
• H01F 3/10 - Composite arrangements of magnetic circuits
• H01F 27/40 - Structural association with built-in electric component, e.g. fuse

Abstract

A solar power inverter includes a number of photovoltaic (PV) inputs for connecting PV modules, a DC-DC converter at each of the PV inputs and a DC-AC inverter for converting the outputs of the DC-DC converters to an AC output power that may be fed into a power grid. The invention provides a method of controlling such a solar power inverter including the steps of identifying a PV input by assigning a priority value to the PV inputs and identifying the PV input with the highest assigned priority value, calculating a set value for the DC-DC converter at the identified PV input that is equal or below a maximum power capacity of the PV module connected to the identified PV input, and applying the set value for the DC-DC converter at the identified PV input.

IPC Classes  ?

• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
• H02S 40/32 - Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules

Abstract

The invention relates to an EMI gasket for mounting on a wall of a housing of an electrical appliance. The gasket includes a plurality of elements arranged in a row wherein two adjacent elements are interconnected by connection pieces. At least one of the elements includes a clamping section for clamping the device onto the housing and a shielding section to perform the shielding function. According to the invention, at least one element further includes a snapping member which serves as a barb for latching into a recess within the wall of the housing where the gasket is to be installed such that the gasket is locked on the wall thereby preventing unintentional movement of the gasket or even that the gasket is slipping off of the housing.

IPC Classes  ?

• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
• H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details

Abstract

The present application relates to a power supply arrangement comprising a power source and a switching arrangement. The switching arrangement includes a switching block, wherein the switching block includes a source interface for connecting the power source, a load interface for connecting a load and a grid interface for connecting a power grid. The switching arrangement includes further a controller for controlling the switching block in dependency of the condition of the power source. The switching arrangement is implemented as a unit separate from the power source. The power supply arrangement comprises further a monitoring device for monitoring the condition of the power source.

IPC Classes  ?

• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
• H02M 7/44 - Conversion of dc power input into ac power output without possibility of reversal by static converters

Abstract

The present application relates to a controller arrangement for controlling an inverter for converting an input power from a power source to a multiphase AC output power provided at a power output of the inverter. The power output is connected to a load and additionally to a power grid. The controller arrangement includes a signal input for receiving a power signal per phase representative of at least one of the power per phase provided to the load or the power per phase provided to the power grid. The controller arrangement is further adapted to control each phase of the multiphase AC output power individually according to the corresponding power signal. The invention further relates to an inverter comprising such a controller arrangement, a power distribution arrangement comprising such an inverter and a controller arrangement to control the inverter and the invention further relates to a method for controlling such an inverter.

IPC Classes  ?

• H02J 3/26 - Arrangements for eliminating or reducing asymmetry in polyphase networks
• H02J 3/50 - Controlling the sharing of the out-of-phase component
• H02M 7/44 - Conversion of dc power input into ac power output without possibility of reversal by static converters
• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
• H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks

Abstract

b) to form U-like core elements. Each choke core element (E1, E4) abuts a flange (122) of one of the transformer core elements (E2, E3). The integrated magnetic component (103) includes a first choke winding (123) arranged on a leg (121.1) of a choke core element (E1) and a second choke winding (124) arranged on another leg (121.4) of a choke core element (E4), where one of a primary (P1, P2) or a secondary winding (S1, S2) of the transformer is connected between the choke windings (123, 124) and where all windings (P1, P2, S1, S2, 123, 124) are interconnected to reduce core losses by flux compensation in order to increase power density.

IPC Classes  ?

• H01F 27/40 - Structural association with built-in electric component, e.g. fuse
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H01F 3/14 - Constrictions; Gaps, e.g. air-gaps
• H01F 27/38 - Auxiliary core members; Auxiliary coils or windings
• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H01F 3/10 - Composite arrangements of magnetic circuits
• H01F 30/04 - Fixed transformers not covered by group having two or more secondary windings, each supplying a separate load, e.g. for radio set power supplies
• H01F 30/10 - Single-phase transformers
• H02M 3/337 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

A mounting clip for connecting a cable terminal of an electrical cable to an electrical unit comprising a receiving portion for one element of a two-element connection system and a groove for receiving at least a part of a cable terminal and/or part of a cable. A nut can be fixedly held in the receiving portion of the clip. A terminal with an opening can be placed between the nut and an electrical unit. A screw can be threaded into the nut to press the terminal against a surface of the electrical unit.

IPC Classes  ?

• H01R 13/11 - Resilient sockets
• H01R 12/57 - Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
• H01R 4/18 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
• H01R 4/22 - End caps, i.e. caps of insulating or conductive material for covering or maintaining connections between wires entering the cap from the same end
• H01R 11/12 - End pieces terminating in an eye, hook, or fork
• H01R 43/048 - Crimping apparatus or processes
• H01R 9/18 - Fastening by means of screw or nut

Abstract

0) the magnitudes of some lower harmonic components of the input current of the power supply unit are increased and the magnitudes of some higher harmonic components of the input current are decreased such that the power supply may draw more current from the grid.

IPC Classes  ?

• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H02M 1/12 - Arrangements for reducing harmonics from ac input or output
• H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

load). Furthermore the invention relates to a corresponding power converter (1) for connecting to a grid (3), preferably it relates to a solar power converter. This power converter (1) includes a load current sensor (142), an output voltage sensor (143) and a load current controller (141).

IPC Classes  ?

• H02M 7/537 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
• H02M 7/5387 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
• G05F 1/44 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only
• H02J 3/12 - Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers

Abstract

ref by means of an adder and it further determines a sample correction signal to correct the current samples in the current loop. This error-controlled duty-ratio prediction with sample correction results in an improved total harmonic distortion as well as in an improved power factor of the converter.

IPC Classes  ?

• H02M 7/68 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H02M 3/156 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

A boost PFC converter includes a rectifier, a converter and an output stage comprising an output capacitor where the DC output voltage is provided across the output capacitor. The rectifier includes four rectifying elements connected in a full bridge configuration where the upper two of these four rectifying elements are thyristors and where the lower two are diodes. In that the thyristors are controlled such as to be open for only a part of each half period of the input voltage, the amount of current per half period that is passed to the output capacitor is controllable and can be made very small. Accordingly, the charge current for precharging the output capacitor can be controllably limited such that a bulky precharge resistor is not required anymore to avoid high inrush currents.

IPC Classes  ?

• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H02M 7/12 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
• H02M 1/32 - Means for protecting converters other than by automatic disconnection
• H02M 1/36 - Means for starting or stopping converters

Abstract

A power supply unit (1) that is to be connected to different types of power supply networks includes an input (2) to receive AC power from the power supply network and an output (3) for providing power to an electrical device. The electrical device may for example be a computer, a telecom infrastructure device, inductive cooking/heating systems or an on-board charger of an electrical automotive vehicle. The power supply unit (1) includes at least two converters (4) that are connected between the inputs (2) and the output (3) and it further includes a controllable switching arrangement (5). The switching arrangement (5) includes a number of controllable switches (6) to controllably connect the converters (4) in different configurations to the input (2) and therefore also controllably to different supply lines of the power supply network.

IPC Classes  ?

• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H02M 1/10 - Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 7/08 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in parallel
• H02M 7/10 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
• H02M 7/23 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only arranged for operation in parallel
• H02M 7/155 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
• B60L 11/18 - using power supplied from primary cells, secondary cells, or fuel cells
• H02M 7/162 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration
• H02M 7/217 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

In a method for detection of an arc in a current path of a converter arrangement (2) for converting a DC input power to an output power, an arc is detected by sensing the current (4) in the current path by means of a current transformer (11), filtering the current signal (4′) with an analog band pass filter (14), converting the analog filtered current signal (4″) into a digital current signal (4′″), determining the harmonic content (19) of the digital current signal (4′″) and then deciding whether an arc exists if the harmonic content (19) exceeds a threshold, where the threshold is determined at the beginning as a multiple of the average harmonic content during a certain period of time of the current signal.

IPC Classes  ?

• G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
• H02H 1/00 - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS - Details of emergency protective circuit arrangements
• G01R 31/40 - Testing power supplies

Abstract

A new and useful circuitry for DC to AC single stage conversion are presented, with the advantages of bi-directionality, resonant power transfer, high efficiency and simplicity. The output voltage dual polarity is achieved by means of control, synchronizing the output switch with one or the other of the primary switches. The invention also provides the means of canceling the common noise of the magnetic transformer.

IPC Classes  ?

• H02M 7/5387 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 7/48 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
• H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• H02M 7/538 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a push-pull configuration

Abstract

.n).

IPC Classes  ?

• H02M 5/45 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
• H02M 5/458 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 7/49 - Combination of the output voltage waveforms of a plurality of converters
• H01F 30/04 - Fixed transformers not covered by group having two or more secondary windings, each supplying a separate load, e.g. for radio set power supplies
• H02P 101/15 - Special adaptation of control arrangements for generators for wind-driven turbines

Abstract

A power adapter includes a power converting circuit, a current detecting circuit, and a controlling unit. A charging voltage with a constant voltage level is provided by the hub through the connecting ports. The current detecting circuit is used for detecting a load current and outputting a corresponding current detecting signal. The load current is transmitted from the power converting circuit to the hub through the power cable. A look-up table is stored in the controlling unit for recording a relationship between the load current and a voltage drop across an impedance of the power cable. According to the current detecting signal and the look-up table, the controlling unit issues a feedback signal to the power converting circuit. According to the feedback signal, a level of the output voltage is dynamically adjusted to be equal to the sum of the voltage drop and the charging voltage.

IPC Classes  ?

• G05F 1/00 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or val
• G05F 1/10 - Regulating voltage or current
• G06F 1/26 - Power supply means, e.g. regulation thereof
• H02J 7/04 - Regulation of the charging current or voltage
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A converter arrangement (C.5, C.7, C.8, C.9, C.11, C.12) with at least two single LLC converters (L), a pulse generator (2) per single LLC converter (L) wherein each pulse generator (2) is configured to supply switching pulses to one single LLC converter (L) and an output controller (11) configured to use switching frequency control and/or phase-shift control to control the pulse generators (2) comprises a load balancing control (7.5, 7.7, 7.8, 7.9, 7.11, 7.12) for overcoming unbalanced loading of the converter arrangement (C.5, C.7, C.8, C.9, C.11, C.12).

IPC Classes  ?

• H02J 1/10 - Parallel operation of dc sources
• H02M 3/158 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
• H02M 3/28 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
• H02M 3/337 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration

Abstract

In an AC-AC converter comprising a primary side, a secondary side and a regulator, wherein the regulator comprises a voltage regulation circuit configured to determine an error voltage based on an at least partially alternating feedback voltage fed into the regulator from the secondary side of the AC-AC converter and to supply this error voltage and/or an information about this error voltage to the primary side of the AC-AC converter, the regulator comprises an averaging circuit configured to determine an average DC voltage based on the feedback voltage.

IPC Classes  ?

• H02M 5/458 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 5/22 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

In an integrated magnetic component for a switched mode power converter, comprising two magnetic cores forming an 8-shaped core structure and at least two first electric winding wires, wherein at least one magnetic core is an E-core, at least one of the first electric winding wires is wound on a flange of the E-core.

IPC Classes  ?

• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 30/06 - Fixed transformers not covered by group characterised by the structure
• H01F 3/10 - Composite arrangements of magnetic circuits
• H01F 27/38 - Auxiliary core members; Auxiliary coils or windings
• H01F 41/06 - Coil winding
• H02M 3/24 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
• H01F 38/02 - Adaptations of transformers or inductances for specific applications or functions for non-linear operation
• H02M 3/337 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration

Abstract

Several new and useful features for a magnetic structure are provided. One feature is that the magnetic structures are configured to help minimize the winding's AC losses, improving the system's efficiency. Another feature is that the combination of different magnetic hats creates a shaping path for the magnetic field. Still another feature is that a magnetic hat concept can be applied to a variety of magnetic core shapes.

IPC Classes  ?

• H01F 17/04 - Fixed inductances of the signal type with magnetic core
• H01F 27/24 - Magnetic cores
• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 27/34 - Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
• H01F 38/14 - Inductive couplings

Abstract

An improved primary or secondary side pad for a wireless transformer for inductive power transfer through an air gap is provided. The primary or secondary side pad includes a first plate, a second plate, and at least two rods which are linking the first and the second plate, where a winding is wound around each rod. A wireless transformer for inductive power transfer through an air gap includes a primary side pad and a secondary side pad of the transformer which is identical in shape and size.

IPC Classes  ?

• H01F 27/24 - Magnetic cores
• H01F 38/14 - Inductive couplings

Abstract

A method of configuring windings in an inductive charging pad array by using capacitors for impedance control and configuring windings to reduce the stray magnetic fields produced.

IPC Classes  ?

• H01F 38/00 - Adaptations of transformers or inductances for specific applications or functions
• H01F 38/14 - Inductive couplings
• H02J 5/00 - Circuit arrangements for transfer of electric power between ac networks and dc networks
• H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
• H02J 17/00 - Systems for supplying or distributing electric power by electromagnetic waves

Abstract

A new method of extracting information from a current waveform for the purpose of controlling a resonant converter is presented. The method comprises the step of sampling the converter waveform exactly three times in half a period of the converter waveform or sampling the converter waveform exactly at three different positions in a sequence on different periods of the converter waveform and the step of extracting waveform information to produce a fundamental component and a triangular component of the converter waveform. The information could also be used for the purpose of predicting the inductance and load of a circuit to indicate alignment in a inductive charging system.

IPC Classes  ?

• G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
• G01R 27/26 - Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants
• H02M 3/338 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
• H02J 7/02 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters

Abstract

A cable winding device comprises a case, a reel disc, a cable, and a cable locking structure. The case comprises a first case element and a second case element. The reel disc is disposed between the first case element and the second case element, wherein the reel disc has a leaf spring. The cable is wound on the reel disc. The cable locking structure has a fixing part and at least partially penetrates the first case element and the reel disc. When a pulling operation of the cable causes the leaf spring to be sustained against the fixing part, a desired length of the cable is pulled out from the case and locked. When the cable locking structure is pressed and the fixing part is detached from the leaf spring, the cable pulled outside the case is rewound on the reel disc.

IPC Classes  ?

• B65H 75/48 - Automatic re-storing devices

Abstract

A forward converter comprises a magnetic component with a transformer and a filter output inductor. Also disclosed is a method for assembly of a forward converter. A first and a second U/UR core are arranged to form an O-core. Windings of the transformer are arranged on the O-core. A bobbin-less U/UR core is arranged to abut the O-core, and windings of a filter output inductor are arranged directly on a body section of the bobbin-less U/UR core. Alternatively, windings of the transformer are arranged on a first section of an E/ER core, and windings of the filter output inductor are arranged directly on a second, bobbin-less section of the E/ER core.

IPC Classes  ?

• H01F 17/04 - Fixed inductances of the signal type with magnetic core
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H01F 3/10 - Composite arrangements of magnetic circuits
• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
• H01F 27/38 - Auxiliary core members; Auxiliary coils or windings
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
• H01F 38/40 - Instrument transformers for dc
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

An integrated electric connector includes a main body, a first electric connector, a casing, a second electric connector, a third electric connector, and a guiding member. The first electric connector is at least partially protruded from the main body and connected with a transmission cable. The second electric connector is installed in the casing, and connectable with the first electric connector. The third electric connector is disposed on the casing and connected with the second electric connector. The guiding member is connected with the casing. The first electric connector is guided by the guiding member to be detachably connected with the second electric connector. The first electric connector is directly connected with the electronic device, or the first electric connector is indirectly connected with the electronic device through the second electric connector and the third electric connector.

IPC Classes  ?

• H01R 13/64 - Means for preventing, inhibiting or avoiding incorrect coupling

Abstract

The invention relates to a power conversion system, wherein a first switch is connected between a input voltage source and a second switch, wherein the second switch is connected to a third switch, wherein the third switch is connected to a fourth switch, wherein the fourth switch is connected to the input voltage source, wherein a first diode is connected between a neutral point and the second switch, wherein a second diode is connected between the third switch and the neutral point. Two or more current transformers are arranged such that a drive signal is produced in an interleaved mode.

IPC Classes  ?

• H02M 7/537 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
• H02M 7/487 - Neutral point clamped inverters

Abstract

A converter transformer (7) with a primary winding and a secondary winding, an integrated current transformer arranged to measure a winding current of the converter transformer, and a synchronous rectifier (11, 12) connected to the secondary winding of the converter transformer are provided. A controller is arranged to close respectively to open the synchronous rectifier depending on the measured winding current. The controller is arranged to close and/or to open the synchronous rectifier as a function of the winding current at a later and/or at an earlier time, whereby the time difference between the later and the earlier time is linearly dependent on the winding current difference, particularly to optimize a discharge process, and/or that an auxiliary supply circuit is arranged to provide auxiliary supply power, wherein the auxiliary supply circuit is arranged to derive auxiliary supply power from the integrated current transformer, in particular in overload situations.

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

A power module includes a power conversion circuit, a fan, a controlling unit, a capacitor, a current-adjusting element and a soft start controlling unit. The power conversion circuit is used for outputting a DC voltage. The fan is connected with the power conversion circuit. The controlling unit is used for issuing a control signal to the fan, thereby controlling operation of the fan. The capacitor is connected with the fan in parallel. The current-adjusting element is connected with the capacitor in series for adjusting the magnitude of current flowing through the capacitor. The soft start controlling unit is connected with the current-adjusting element. When the power module is connected with a connector of a power supply system, the soft start controlling unit controls the magnitude of current flowing through the current-adjusting element to be gradually increased, so that the magnitude of current flowing through the capacitor is gradually increased.

IPC Classes  ?

• G05F 3/06 - Regulating voltage or current wherein the variable is ac using combinations of saturated and unsaturated inductive devices, e g. combined with resonant circuit

Abstract

A backflow prevention device includes at least one backflow prevention unit. The backflow prevention unit includes a frame, a first edge shutter plate, a second edge shutter plate and plural intermediate shutter plates. The frame includes an airflow channel. If the first inner sidewall is disposed over the second inner sidewall, the first edge shutter plate and the plural intermediate shutter plates are configured to open or close the airflow channel, and the slab of the second edge shutter plate is inactive. Whereas, if the second inner sidewall is disposed over the first inner sidewall, the second edge shutter plate and the plural intermediate shutter plates are configured to open or close the airflow channel, and the slab of the first edge shutter plate is inactive.

IPC Classes  ?

• F24F 7/00 - Ventilation
• F24F 13/06 - Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
• F24F 13/08 - Air-flow control members, e.g. louvres, grilles, flaps or guide plates
• F16K 15/03 - Check valves with guided rigid valve members with a hinged closure member
• F04D 25/14 - Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use

Abstract

A case structure includes a first housing and a fan frame fixing module. The fan frame fixing module includes a fan frame, a positioning part and an auxiliary part. The positioning part is disposed on the first housing. The auxiliary part is disposed on the first housing. The fan frame urges against the first housing and the positioning part, and the auxiliary part urges against the fan frame so that the fan frame is fixed on the first housing.

IPC Classes  ?

• F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the like; Balancing
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
• G06F 1/20 - Cooling means
• F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven
• F04D 29/60 - Mounting; Assembling; Disassembling

Abstract

2).

IPC Classes  ?

• H02H 7/122 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

cmp).

IPC Classes  ?

• G05F 1/00 - Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or val

Abstract

4). The core structure can either be fully composed of high permeability low saturation cores with air gaps or be composite comprising low permeability high saturation cores and high permeability low saturation cores with no air gaps.

IPC Classes  ?

• H01F 27/24 - Magnetic cores
• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 17/06 - Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
• H01F 27/29 - Terminals; Tapping arrangements
• H01F 5/00 - Coils
• H01F 17/04 - Fixed inductances of the signal type with magnetic core
• H01F 3/10 - Composite arrangements of magnetic circuits
• H01F 27/38 - Auxiliary core members; Auxiliary coils or windings
• H01F 27/40 - Structural association with built-in electric component, e.g. fuse
• H01F 30/10 - Single-phase transformers
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
• H01F 3/14 - Constrictions; Gaps, e.g. air-gaps
• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
• H02M 3/28 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac

Abstract

A redundant power supply system includes a system cabinet, a first power supply apparatus, a second power supply apparatus and a power converting circuit board. The system cabinet at least includes a first receptacle and a second receptacle. The first power supply apparatus has a first connection interface. The second power supply apparatus has a second connection interface. The power converting circuit board is disposed inside the system cabinet and includes a first insertion slot, a second insertion slot and a power converting circuit. A voltage outputted from the first power supply apparatus and/or the second power supply apparatus is converted by the power converting circuit into a regulated voltage when the first connection interface of the first power supply apparatus and the second connection interface of the second power supply apparatus are inserted into the first insertion slot and the second insertion slot, respectively.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
• H05K 7/16 - Mounting supporting structure in casing or on frame or rack on hinges or pivots

Abstract

An electronic device includes a circuit board and a power connection interface. The power connection interface is formed on an edge region of the circuit board. The power connection interface includes a first trace portion for transmitting a DC voltage and second and third trace portions for transmitting an AC voltage. Plural trace wires of the first trace portion are arranged on first and second surfaces of the edge region. The second and third trace portions are arranged on opposite surfaces of the edge region.

IPC Classes  ?

• H01R 9/00 - Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor

Abstract

A power supply apparatus for use with a redundant power supply system includes a casing, a main circuit board and an airflow driving device. The casing includes a first airflow opening and a second airflow opening. The main circuit board is disposed within the casing and includes plural electronic components thereon. The airflow driving device is disposed in the middle region of the main circuit board. A cooling air is pumped by the airflow driving device to be introduced into the inner portion of the casing through one of the first airflow opening and the second airflow opening, then the heat generated from the electronic components is removed by the cooling air, and finally a heated air is exhausted through the other one of the first airflow opening and the second airflow opening.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

An electronic device swappable to be embedded into a system cabinet includes a casing and a locking element. The casing includes a first sidewall and a second sidewall, which have a first opening and a second opening, respectively. The locking element includes a first end part, a protrusion part, a bent part and a second end part. The first end part is fixed on an inner surface of the second sidewall of the casing. The protrusion part is partially exposed from the second opening to be engaged with a receiving structure of the system cabinet. The bent part is arranged between the first end part and the protrusion part. The second end part is exposed from the first opening so as to be protruded from the first sidewall of the casing.

IPC Classes  ?

• H05K 7/00 - Constructional details common to different types of electric apparatus

Goods & Services

switching power supplies

Abstract

A fastening mechanism for fastening a detachable electronic device onto a DIN rail includes a frame, a first slab member and a first resilient element. The frame includes a base, a first extension part and a second extension part. The first extension part and the second extension part are arranged at bilateral sides of the base. A first perforation is formed between the first extension part and the base. The first slab member is movable along the bottom surface of the first extension part and has an end penetrating through the first perforation to be disposed over the base. The first resilient element is coupled to the first slab member and exerts a clamping force for claming a first extending edge of the DIN rail between the first slab member and the base.

IPC Classes  ?

• H01R 13/66 - Structural association with built-in electrical component

Goods & Services

Power supplies, telecommunication power systems, rack power system for telecommunication, switching power supplies, uninterruptible power systems.

Abstract

An inductive element comprises at least two core-parts including a magnetically permeable material and at least one winding of an electrical conductor which can be a foil winding, a stranded wire (litz) winding or a conventional wire winding. Each core-part has an elongated center piece with an outer winding surface. At each of its longitudinal ends, the center piece has a contact element with a lateral contact surface. The winding is wound directly on the core-parts without a bobbin or the-like. The core-parts of the inductive element are arranged with their longitudinal axes essentially in parallel in a manner that the lateral contact surfaces of each contact element abut on a lateral contact surface of another core-part. Such an inductive element can be manufactured by co-axially arranging the core-parts and using them as a roll-shaft. After the windings have been applied to the core-parts, they can be rearranged, i.e. “flipped over,” in a stack-like arrangement in order to form an inductive element.

IPC Classes  ?

• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 27/24 - Magnetic cores
• H01F 7/06 - Electromagnets; Actuators including electromagnets

Goods & Services

Servo motor; servo motor drive; DC brushless motor; DC fan; AC fan; crossflow fan; blower, including DC motor blower; oil coolers [vehicle engine parts]; DC brushless spindle motors and stepper motors; ignition coil. Programmable temperature controller; optical encoder; programmable logic controller; variable speed AC motor drive, AC motor drive, frequency inverter; AC induction motor drive; DC brushless motor drive; human machine interface device, operate interface terminal; optical sensor; optical switch; servo motor controller; telecommunication power systems/rack power system for telecommunication; switching power supplies; uninterruptible power systems (UPS); DC-DC converter; switch mode rectifier; control and supervisory units; charger; monitors (including TV monitor, LCD monitor, computer monitor, color monitor); battery control and supervisory units; power distribution units; AC distribution units; DC distribution units; AC/DC adapter; DC/AC inverter; electronic ballast; oscillators; active filter; components and equipment for computer networking; transformers; RF/microwave components and modules; chip inductor; inductor; high frequency electro-magnetic interference common mode choke; fiber optical transceiver module; fans controller and DC drive; central processing unit [CPU] coolers; telecommunication component; EMI/RFI Filter; fiber optical passive components; radio frequency/microwave amplifiers; optical components; DSL splitters (filters); cold cathode fluorescent lamps/units; LCD TV; PDP TV; LCD monitor; CRT Monitor, PDP Monitor; LCD Projector; DLP projector; universal AC/DC adapter; universal DC /DC adapter; car charger; battery; battery chargers; AC power cord; DC power cord; AC socket; USB cable; USB plug; DC output plug/tip; package and pouch for electronic products; solar cell; solar inverter; fuel cell; LED light; solar module. Chimney blowers; hot air blowers; walk-in coolers; coolers for furnaces; water coolers.

Goods & Services

Servo motor; servo motor drive; DC brushless motor; DC fan; AC fan; crossflow fan; blower, including DC motor blower; oil coolers [vehicle engine parts]; DC brushless spindle motors & stepper motors; ignition coil. Programmable temperature controller; optical encoder; programmable logic controller; variable speed AC motor drive, AC motor drive, frequency inverter; AC induction motor drive; DC brushless motor drive; human machine interface device, operate interface terminal; optical sensor; optical switch; servo motor controller; telecommunication power systems/rack power system for telecommunication; switching power supplies; uninterruptible power systems (UPS); DC-DC converter; switch mode rectifier; control and supervisory units; charger; monitors (including TV monitor, LCD monitor, computer monitor, color monitor); battery control and supervisory units; power distribution units; AC distribution units; DC distribution units; AC/DC adapter; DC/AC inverter; electronic ballast; oscillators; active filter; components and equipment for computer networking; transformers; RF/microwave components and modules; chip inductor; inductor; high frequency electro-magnetic interference common mode choke; fiber optical transceiver module; fans controller and DC drive; central processing unit [CPU] coolers; telecommunication component; EMI/RFI Filter; fiber optical passive components; radio frequency/microwave amplifiers; optical components; DSL splitters (filters); cold cathode fluorescent lamps/units; LCD TV; PDP TV; LCD monitor; CRT Monitor, PDP Monitor; LCD Projector; DLP projector; universal AC/DC adapter; universal DC /DC adapter; car charger; battery; battery chargers; AC power cord; DC power cord; AC socket; USB cable; USB plug; DC output plug/tip; package and pouch for electronic products; solar cell; solar inverter; fuel cell; LED light; solar module. Chimney blowers, hot air blowers; walk-in coolers; coolers for furnaces; water coolers.

Goods & Services

[ Electronic servo motor; servo motor drive; DC brushless motors for use in computers; AC fans for motors and engines for household electronics appliances and machines; AC fans for machine engines; blower, namely, DC motor blower; DC brushless spindle motors and stepper motors; AC variable frequency drives that are used to control small and medium-sized motors in applications such as manufacturing processes, HVAC and pumps; variable frequency drives for large power applications in the oil and gas, metal, marine and other industries; AC induction motor drive for production of industrial automation machines; DC brushless motor drive for production of industrial automation machines ] [ Human Interface devises (HMI), namely, systems by which people control machines, consisting principally of touch screens, touch pads, computer keyboards, and microphones; Optical Sensor for light and capacity; Optical switch; Servo motor controller; Telecommunication power systems and telecommunications rack power systems, namely, uninterruptible power supplies; Switching power supplies; ] Uninterruptible power systems (UPS) comprising electric fans with speed controls, USB adapter plug [, built-in central processing unit (CPU) and Electrical fuses sold as a unit; DC/DC converters in industry standard sizes and shapes; Monitors, namely, TV monitors, computer monitors, color video monitors; electric power distribution units; User interfaces for electrotechnical and electron devices, namely, for telecom power systems and for electronic circuits, with batteries as the controlled power source ] ; AC power distribution units; DC power distribution units; AC/DC adapter; [ DC/AC inverter; Electronic lighting ballast; computer networking hardware; transformers; Radio frequency/microwave components and modules, namely, radio frequency/microwave antenna, radio frequency/microwave amplifiers, and radio frequency/microwave switches; Electronic and optical communications instruments and components, namely, optical transceivers; Electric controller for fans; central processing unit (CPU) coolers; Telecommunication components, namely, central office (CO) signal splitters, customer premises equipment (CPE) signal splitters and in-line signal filters; Electromagnetic interference filter; Fiber optical passive components and optical components, namely, splitters, filters, capacitors, transformers and inductors; DSL signal splitter; LCD TV; PDP TV; LCD monitor used for televisions and computers; LCD projector; multimedia projector; ] Universal AC/DC adapter; universal DC/DC adapter; Car chargers for mobile telecommunication devices; car chargers for mobile music devices; car chargers for computer notebooks; AC electric power cord; DC electric power cord; AC electric socket; USB adapter cable; USB adapter plug; DC output plug/tip, used for connecting terminal products such like networks, mobile phones, power supplies and output cables; cases and pouches adapted for carrying electronic products, namely, power supplies, computer notebooks, mobile phones, spare batteries and solar batteries; [ Solar cells; Solar inverters; Fuel cells; light emitting diodes for use in lamps and bulbs; ] DC fan for computers, electronics and communication apparatus [ ; Crossflow fan for computers and servers; Apparatus for converting electronic radiation to electrical energy, namely, photovoltaic solar modules; photovoltaic solar thermal module ] [ Hot air blowers; air conditioning panels for use in walk-in coolers; Walk-in coolers; Water coolers; solar collectors; solar thermal installations, namely, solar thermal modules; Cold cathode fluorescent lamps ] [ Back packs; Sport packs; Felt pouches; Leather pouches; Leather bags, leather bags used for merchandise packaging ]

Abstract

a) for switching a connection from the respective inverter module (11, 12, 13) to said load. This architecture allows for directly connecting the critical load to the inverter group (10), thereby eliminating the susceptibility for single point failures at a common static switch for all inverter modules. Redundancy of the whole system may be easily established or increased by providing additional inverter modules. The proposed architecture guarantees a fail safe maintenance procedure as there is no manual bypass needed for maintenance of the static switch.

IPC Classes  ?

• H02M 7/48 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode