Patent classifications
H
ELECTRICITY
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H02
GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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H02P
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
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23/00
Arrangements or methods for the control of AC motors characterised by a control method other than vector control
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H02P23/28
Controlling the motor by varying the switching frequency of switches connected to a DC supply and the motor phases
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