Patent ID: 6490187
Filing Date: 2002-12-03
Classification: H02M

Abstract:
A semiconductor electric power conversion device including a converter unit and an inverter unit each having a group of parallel-connected capacitors and a plurality of positive polarity side switching elements being connected to a positive polarity terminal of the capacitor group plus a plurality of negative polarity side switching elements as connected to a negative polarity terminal of said capacitor group, characterized by comprising:a first connection section for connecting together a first conductor being connected to the positive terminal of said capacitor group and a second conductor as connected to the positive polarity of the positive polarity side switching elements making up said inverter and a second connection section for connecting thereto a third conductor as connected to the positive polarity of the positive polarity side switching elements making up said inverter; and a third connection section for connecting together a fourth conductor being connected to the negative terminal of said capacitor group and a fifth conductor as connected to the negative polarity of the negative polarity side switching elements making up said converter and a fourth connection section for connecting thereto a sixth conductor as connected to the negative polarity of the negative polarity side switching elements constituting said inverter, wherein said first conductor and said fourth conductor are formed to have a multilayer structure while letting said second conductor and said fifth conductor be formed into a multilayer structure with said third conductor and said sixth conductor being formed into a multilayer structure.