Patent ID: 8076918

Claim:
A multi-phase driving circuit comprising: a single-phase pulse-width modulation (PWM) controller to provide a single-phase PWM signal; a plurality of drivers, each of the plurality of drivers connected to the single-phase PWM controller to receive the single-phase PWM signal simultaneously and adjusting a phase of the single-phase PWM signal to output an adjusted PWM signal, each of the plurality of drivers also outputting a driving signal; and a plurality of switch circuits connected to the plurality of drivers correspondingly, each of the plurality of switch circuits receiving the adjusted PWM signal and the driving signal from a corresponding driver, each of the plurality of switch circuits generating a driving voltage controlled by the driving signal and adjusting a phase of the driving voltage by the adjusted PWM signal, and then outputting the adjusted driving voltage to a load, so as to make the plurality of switch circuits output a multi-phase driving voltage to the load.