Patent ID: 8324875
Filing Date: 2012-12-04
Classification: H02M

Abstract:
1. A multiphase DC/DC converter comprising: a plurality of DC/DC converters whose outputs are connected in common to supply electric power to a load; a load state detection portion which detects a state of the load connected to the plurality of DC/DC converters and outputs a load state detection signal; a comparator which compares an output voltage generated by the plurality of DC/DC converters and a reference voltage with each other, and outputs a comparison signal; a pulse signal generation portion which, based on the comparison signal, generates a pulse signal whose on time is fixed; and a pulse distribution portion which, based on the load state detection signal from the load state detection portion, distributes successively a pulse of the pulse signal as a drive signal for the plurality of DC/DC converters so as to drive the plurality of DC/DC converters such that output phases of the plurality of DC/DC converters are deviated from each other or such that the output phases of the plurality of DC/DC converters are aligned with each other,