ELECTRIC POWER CONVERSION DEVICE

In a power converter provided with a current detection circuit on a DC bus, the precision with which the current value is detected by the current detection circuit is enhanced. The power semiconductor module is connected between the wiring pattern of the positive potential of the DC bus and the wiring pattern of the negative potential thereof; the smoothing capacitor and the snubber capacitor are connected between the wiring pattern of the positive potential of the DC bus and the wiring pattern of the negative potential thereof. The current detection circuit is connected between the power semiconductor module and the snubber capacitor employing the wiring pattern of the negative potential of the DC bus. The positive terminal of the smoothing capacitor and the positive terminal of the snubber capacitor, the negative terminal of the smoothing capacitor and the negative terminal of the snubber capacitor, the positive terminal of the power semiconductor module and the positive terminal of the snubber capacitor and the negative terminal of the power semiconductor module, and the first terminal of the current detection circuit are respectively disposed in the vicinity of each other.