Gated asynchronous carrier modulation

Details Gated asynchronous carrier modulation Gated asynchronous carrier modulation

H - Electricity

02

M

318/120

H02M 7/529 (2006.01)

Patent

CA 1197284

Abstract of the Disclosure A motor pulse width modulation control technique employing gated asynchronous carrier modulation including establishing a repetitive modulation signal along with the generation of a carrier frequency signal at a frequency greater than the frequency of the modulation signal. The carrier frequency signal is gated at a gating rate less than the frequency of the carrier frequency signal so as to provide the gated carrier frequency signal. Means are provided for modulating the gated carrier frequency signal by the aforementioned repetitive modulation signal so as to provide cyclic pulse width modulation drive signal for motor control.

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