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Modified sinusoidal pulse width modulation for full digital power factor correction
Modified sinusoidal pulse width modulation for full digital power factor correction
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机译:用于全数字功率因数校正的修正正弦脉冲宽度调制
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摘要
A converter-controller includes a feedback circuit, receiving a feedback voltage from an output stage and generating a current command signal according to the difference of a reference voltage and the feedback voltage. A duty cycle modulator generates a modified duty cycle utilizing the current command signal and a reference table. The controller further includes a counter producing a periodic signal, and a comparator, receiving the modified duty cycle and the periodic signal. The comparator generates a variable-duty-cycle output current corresponding to the difference of the periodic signal and the modified duty cycle.
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