Patent ID: 9024599
Filing Date: 2015-05-05
Classification: G05F,H02M

Abstract:
1. A multi-phase direct current (DC)-DC power converter, comprising: a plurality of output stage circuits, configured to convert an input voltage into an output voltage; a feedback circuit, used for outputting a trigger signal according to the output voltage and a ramp signal; a phase channel selector, used for generating at least two channel setting signals according to the trigger signal; a pulse width modulation (PWM) generator, coupled to the output stage circuits and the phase channel selector, and used for generating a plurality of PWM signals in response to a plurality of error current signals, the input voltage, the output voltage, and the channel setting signals; and a phase channel current sensor, configured to sense output currents of the output stage circuits, and calculate output current differences between the output stage circuits, so as to output the error current signals to the PWM generator, wherein the PWM generator adjusts the duty cycle of each PWM signal according to the error current signals.