Electronic commutation method and related apparatus

Electricity: motive power systems – Positional servo systems – Pulse-width modulated power input to motor

Reexamination Certificate

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Reexamination Certificate

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07573224

ABSTRACT:
A method and apparatus for electronic commutation of a pulse width modulation (PWM) controlled motor involves temporarily increasing the frequency of one or more PWM drive signals applied to the motor upon the occurrence of an asynchronous commutation event.

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