MULTI-PHASE DC-DC CONVERTER AND METHOD OF CONTROLLING THE SAME
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United States of America Patent
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Issued Date -
Jul 4, 2013
app pub date -
Apr 18, 2012
filing date -
Dec 29, 2011
priority date (Note) -
Abandoned
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Abstract
A multi-phase DC-DC converter and a method of controlling a multi-phase DC-DC converter are disclosed. The multi-phase DC-DC converter is adapted to control a plurality of channels in a multi-phase DC-DC converting circuit for providing an output voltage. The multi-phase DC-DC converter comprises a constant on unit, a plurality of PWM units and a pulse width logic unit. The constant on unit determines a time point of generating a turning on signal indicative of a preset time period according to the output voltage. Each PWM unit generates a PWM signal, and a pulse width thereof is determined according to the turning on signal and currents of the channels. The pulse width logic unit controls the channels according to the corresponding PWM signals generated by the plurality of PWM units.
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