varying the frequency by omitting half waves

Full Title

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

Classification Context

Section:

ELECTRICITY

Class:

GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER

Subclass:

CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS