POWER CONVERSION DEVICE AND POWER SOURCE SYSTEM USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a circuit and control configuration capable of reducing cost and size of a power conversion device composed of a plurality of switching power source devices connected in parallel to each other.SOLUTION: A power conversion device includes: a first low voltage-side circuit and a first high voltage-side circuit which are connected via a first transformer; and a second low voltage-side circuit and a second high voltage-side circuit which are connected via a second transformer. In the first high voltage-side circuit and the second high voltage-side circuit, switching timing of the first high voltage-side circuit and the second high voltage-side circuit is controlled so that a difference between an input current to the first low voltage-side circuit and an input current to the second low voltage-side circuit during step-up operation becomes smaller than a predetermined value.SELECTED DRAWING: Figure 1