Patent ID: 9029977
Filing Date: 2015-05-12
Classification: H01L,H02M,H05K

Abstract:
1. A power conversion apparatus comprising: semiconductor modules constituting a power conversion circuit, each of the semiconductor modules incorporating a switching element; and a circuit board on which a control circuit for controlling switching of the switching elements of the semiconductor modules is formed, wherein each of the semiconductor modules includes signal terminals electrically connected to the circuit board, the signal terminals of each of the semiconductor modules are arranged in a line so as to form a terminal row along a first direction, the semiconductor modules are grouped into upper arm semiconductor modules each connected to a high potential side of the power conversion circuit and lower arm semiconductor modules each connected to a low potential side of the power conversion circuit and to a corresponding one of the upper arm semiconductor modules, and upper arm terminal rows as the terminal rows of the upper arm semiconductor modules and lower arm terminal rows as the terminal rows of the lower arm semiconductor modules are arranged in a staggered manner along a second direction perpendicular to the first direction and to a third direction in which the signal terminals of the semiconductor modules project, the first, second and third directions being perpendicular to one another.