MULTIPLE OUTPUT DC/DC CONVERTER

摘要

A multiple output DC/DC converter is provided to reduce ripple voltage of each output by turning on a plurality of output switches at the same time. An inductor(202) is an inductive energy storage element for transmitting energy from input power to each output. Power switches(204,205) alternately apply input power voltage and reference voltage to one end of the inductor. A power switch(203) is connected between the other end of the inductor and a reference voltage source. A plurality of power switches(210-290) are connected to output voltages and the other end of the inductor. A controller(1700) turns on the power switches connected to respective outputs simultaneously and controls energy accumulation time of the inductor by integrating a plurality of outputs through one proportional-integral controller.