| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that, in a conventional IGBT module, when used for a large current or large (dI/dt) device, a gate voltage drop caused by current imbalance becomes too large and IGBT cannot be maintained in an ON state.SOLUTION: A semiconductor breaker comprises: an IGBT module 11; a plurality of IGBT units each formed from a snubber circuit and a gate driver that are connected to the IGBT module: and an inter-unit bus bar that connects the plurality of IGBT units in series. The semiconductor module is configured by connecting a plurality of series connection bodies between the IGBT units and the inter-unit bus bar, in parallel.SELECTED DRAWING: Figure 1 |
