Patent ID: 9685879
Date: 2017-06-20
CPC Classifications: H01L,H02M,H05K

Claim:
1. A power semiconductor module, comprising: a first set of an upper arm and a lower arm which includes a positive switching element and a negative switching element which are series-connected to each other, the positive switching element having a plurality of self-arc extinguishing type semiconductor elements parallel-connected to each other, the negative switching element having a plurality of self-arc extinguishing type semiconductor elements parallel-connected to each other; a second set of an upper arm and a lower arm which includes a positive switching element and a negative switching element which are series-connected to each other, the positive switching element having a plurality of self-arc extinguishing type semiconductor elements parallel-connected to each other, the negative switching element having a plurality of self-arc extinguishing type semiconductor elements parallel-connected to each other, the second set of an upper arm and a lower arm being connected in parallel to the first set of an upper arm and a lower arm; a first positive electrode side DC terminal connected to the positive switching element of the first set of an upper arm and a lower arm; a second positive electrode side DC terminal connected to the positive switching element of the second set of an upper arm and a lower arm; a first negative electrode side DC terminal connected to the negative switching element of the first set of an upper arm and a lower arm; a second negative electrode side DC terminal connected to the negative switching element of the second set of an upper arm and a lower arm; a first AC terminal connected to both of the positive switching element and the negative switching element of the first set of an upper arm and a lower arm; a second AC terminal connected to both of the positive switching element and the negative switching element of the second set of an upper arm and a lower arm; a first wiring pattern which connects the first set of an upper arm and a lower arm to the first positive electrode side DC terminal, the first negative electrode side DC terminal, and the first AC terminal; and a second wiring pattern which connects the second set of an upper arm and a lower arm to the second positive electrode side DC terminal, the second negative electrode side DC terminal, and the second AC terminal, wherein an outline of the power semiconductor module has a substantially quadrangular surface; the first and second positive electrode side DC terminals and the first and second negative electrode side DC terminals are disposed at a side of the substantially quadrangular surface; the first and second AC terminals are disposed at a side which is opposite to the side; and the first positive electrode side DC terminal and the first negative electrode side DC terminal are disposed in mirror symmetry with the second positive electrode side DC terminal and the second negative electrode side DC terminal.