| 摘要 |
PROBLEM TO BE SOLVED: To prevent deviation of current even in a construction where a plurality of switching circuits are connected in parallel.SOLUTION: A power conversion circuit, which is constructed by connecting a plurality of switching circuits including chopper reactors 1 and switching elements 2 in parallel and outputs inputted DC voltage after stepping up or down the DC voltage through switching operations of the switching elements 2, includes: a current detection unit 8 that detects current flowing to each switching circuit; and a comparator 10 that determines whether a current detection value 33 detected by the current detection unit 8 is equal to or greater than an upper limit current value 35 and outputs, when there is a switching circuit whose current detection value 33 is equal to or greater than the upper limit current value 35, a suppression signal 36 for shortening ON time of the switching element 2 of the switching circuit. |
