| 摘要 |
PURPOSE: To enable parallel connection without preliminary selection or dilation by a method, wherein a large number of signal connection parts connected mutually are provided and a single power semiconductor module, which can be selected freely is connected to a control device, at the time when the modules in a plurality are connected in parallel. CONSTITUTION: A power semiconductor module 1 has a large number of signal connection parts 4.1-4.4, which are disposed on another side of a package. Moreover, an interface whereon a signal emitted from a control device and transmitted through an optical waveguide is coverted into the optimum one for a signal bus may be incorporated in the power semiconductor module. Accordingly, the signal connection parts 4.1-4.4 are connected to gate connection parts 5.1 and 5.2 in relation to the signal. When a plurality of power semiconductor modules 1 are connected in parallel, the signal connection parts 4.1-4.4 in large numbers which can be connected to the gate connection parts 5.1 and 5.2 in relation to the signal are incorporated in a circuit device and this forms the signal bus. |
