Abstract: A power conversion device includes a fuse connected to an input power supply, and semiconductor elements connected in series to the input power supply via the fuse, wherein the semiconductor elements have a semiconductor chip, which has an electrode on an upper face thereof, and plate-form wiring members, which are mounted on the electrode and are formed of a plate-form conductor through which current passing through the fuse flows, and are configured by the semiconductor chip and the plate-form wiring members being sealed using a sealing resin, and a fusion time of the fuse is shorter than a fusion time of the plate-form wiring members.

Abstract: A first capacitor is connected between a first connection point and a second connection point. A second capacitor is connected between a third connection point and a fourth connection point. A current sensor is provided between the first connection point and the third connection point. A sum of the third wiring length which is a length of wiring from the first connection point to the third connection point and the fourth wiring length which is a length of wiring from the second connection point to the fourth connection point is smaller than a sum of the first wiring length which is a length of wiring from a first input terminal to the first connection point and the second wiring length which is a length of wiring from a second input terminal to the second connection point.

Abstract: A first capacitor is connected between a first connection point and a second connection point. A second capacitor is connected between a third connection point and a fourth connection point. A current sensor is provided between the first connection point and the third connection point. A sum of the third wiring length which is a length of wiring from the first connection point to the third connection point and the fourth wiring length which is a length of wiring from the second connection point to the fourth connection point is smaller than a sum of the first wiring length which is a length of wiring from a first input terminal to the first connection point and the second wiring length which is a length of wiring from a second input terminal to the second connection point.