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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8/00
Arrangements for controlling dynamo-electric motors rotating step by step
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H02P8/14
Arrangements for controlling speed or speed and torque
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H02P8/18
Shaping of pulses, e.g. to reduce torque ripple
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