Power semiconductor device

Details Power semiconductor device Power semiconductor device

2007-01-04

2009-10-06

Patel, Rajnikant B (Department: 2838)

Electric power conversion systems

Current conversion

Using semiconductor-type converter

C363S056050

Reexamination Certificate

active

07599203

ABSTRACT:
A power semiconductor device M includes: first and second frames for feeding unipolar power from outside; first and second switching units which are series-connected between the first and second frames; an output frame for outputting AC power which is generated by conduction and shutoff of each switching unit to outside; a connecting wire for electrically connecting at least one pair of the first frame and the first switching unit, the first switching unit and the output frame, the output frame and the second switching unit, and the second switching unit and the second frame; a third frame which is arranged close to the output frame; and a branching wire for electrically connecting the first switching unit or the second switching unit to the third frame, whereby sufficiently suppressing surge voltage which takes place within the module even using an external snubber circuit.

REFERENCES:
patent: 5055990 (1991-10-01), Miki et al.
patent: 6232654 (2001-05-01), Nagase
patent: 3-136412 (1991-06-01), None
patent: 8-32021 (1996-02-01), None
patent: 2000-82775 (2000-03-01), None
patent: 2004-112999 (2004-04-01), None

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