• All sections
• H - Electricity
• H02P - Control or regulation of electric motors, electric generators or dynamo-electric converterscontrolling transformers, reactors or choke coils
• H02P 27/18 - 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 to AC converters without intermediate conversion to DC varying the frequency by omitting half waves

Patent holdings for IPC class H02P 27/18

Total number of patents in this class: 13

10-year publication summary

Principal owners for this class