CPC Main Group
H02P 27/00 Arrangements or methods for the control of AC motors characterised by the kind of supply voltage (of two or more motors H02P5/00; of synchronous motors with electronic commutators H02P6/00; of DC motors H02P7/00; of stepping motors H02P8/00)
2 direct subcodes
Child Classifications
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- H02P 27/02 using supply voltage with constant frequency and variable amplitude
- H02P 27/04 using variable-frequency supply voltage, e.g. inverter or converter supply voltage