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A sort of pulse-width modulation control apparatus and methods, for voltage-controlled inverters/converters, including a Pesudo Random Binary Sequence (PRBS) generator which outputs a random bit, and a switching state modifier which modifies the switching states of inverter/converter according to the value of the random bit, randomizing the switching state modifier the switching of power devices of inverter/converter, thereby randomizing the spectra of current and voltage, and significantly reducing the acoustic noise and EMI.
TW086112190A1997-08-251997-08-25Pulse-width modulation control apparatus and methods, for voltage-controlled inverters/converters
TW350170B
(en)
bidirectional reducer-amplifier power converters, electric ignition generator systems employing bidirectional reducer-amplifier power converters, and methods for such