Electric power conversion systems – Current conversion – Using semiconductor-type converter
Reexamination Certificate
2006-08-10
2009-06-02
Lopez, Fei Fei Yeung (Department: 2826)
Electric power conversion systems
Current conversion
Using semiconductor-type converter
C363S141000, C363S123000, C363S071000, C257S500000, C257SE29027, C257SE29066, C257SE29197, C257SE21382, C257S177000
Reexamination Certificate
active
07542317
ABSTRACT:
The power conversion apparatus uses the semiconductor device. Said semiconductor device includes a first group of power semiconductor elements at least one of which is electrically connected between a first potential and a third potential, a second group of power semiconductor elements at least one of which is electrically connected between a second potential and the third potential, and a third group of power semiconductor elements at least one of which is electrically connected between the first potential and the third potential. The second group is disposed between the first group and third group.Thereby, a low-loss semiconductor device having both inductance reducibility and heat generation balancing capability and also an electric power conversion apparatus using the same is provided.
REFERENCES:
patent: 6822850 (2004-11-01), Pfeifer et al.
patent: 11-4584 (1999-01-01), None
patent: 2001-332688 (2001-11-01), None
patent: 2003-197858 (2003-07-01), None
Azuma Katsunori
Hozoji Hiroshi
Morita Toshiaki
Otsuka Osamu
Satoh Toshiya
Crowell & Moring LLP
Hitachi , Ltd.
Lopez Fei Fei Yeung
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