SWITCHING APPARATUS, AND PHOTOVOLTAIC POWER GENERATION SYSTEM AND VEHICLE DRIVE SYSTEM USING SAME

摘要

A series-parallel switching circuit (10) is composed by connecting in parallel a plurality of series circuits, each of which has a first switch (M1) into which current is inputted and a second switch (M2) that outputs current connected in series. The midpoints of the plurality of series circuits are connected with each other. When the series-parallel switching circuit (10) is to be turned on, the plurality of second switches (M2) composing the series-parallel switching circuit (10) is turned on first, and then the plurality of first switches (M1) composing the series-parallel switching circuit (10) is turned on.