• All sections
• H - Electricity
• H02P - Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils
• H02P 27/05 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using AC supply for both the rotor and the stator circuits, the frequency of supply to at least one circuit being variable

Patent holdings for IPC class H02P 27/05

Total number of patents in this class: 28

10-year publication summary

Principal owners for this class