Patent ID: 7129685

Claim:
A DC/DC converter control system for controlling a DC/DC converter which receives input of a power source voltage from a DC power source and supplies a converted output voltage, wherein the DC/DC converter comprises a reactor through which a current from the DC power source is made to flow, and a pair of switches for switching and controlling the current flowing in the reactor; and the control system comprises: a feedback control section which controls a duty ratio of the pair of switches based on a difference between the output voltage and its target value; a feed forward section which controls the duty ratio of the pair of switches based on a difference between the output voltage and the power source voltage; and a scheduling section which corrects a feedback control performed in the feedback control section by multiplying a control value obtained in the feedback control by a scheduling factor incorporating the output voltage, the power source voltage, a voltage decrease in the power source voltage, and reactance of the reactor.