Power converter device

A power module (300) having three unit power modules (100U,100V,100W) and a control circuit board (500) including a gate drive circuit (27) are set up side by side and mounted on a heat exchanger (700). A pair of direct current terminals (21,22) for connecting the smoothing capacitor (600) and a plurality of alternating current terminals (23U,23V,23W) are integrally-molded into a power module case (400) of the power module (300). A plurality of control pins (13UU,13UD,13UW,13VU,13VD) for providing switching devices (2) mounted on the unit power modules (100U,100V,100W) with control signals are set up on the opposite side of the side where the current terminals (21,22,23) are set up, which is figured as located in the right of the drawing. The control pins (13UU,13UD,13UW) of the switching devices (2) of the unit power modules (100U,100V,100W) and the gate signal output terminals (26) of the control circuit board (500) are wire-bonded. The smoothing capacitor (600) is mounted on the side or top of the power module (300).