Converter and power converter that becomes it with the...

Details Converter and power converter that becomes it with the... Converter and power converter that becomes it with the...

2008-12-16

2010-11-23

Vu, Bao Q (Department: 2838)

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

Reexamination Certificate

active

07839663

ABSTRACT:
A converter includes a converter circuit1having a plurality of bridge-connected semiconductor switching devices for converting AC power into DC power, a smoothing condenser connected in parallel to the DC side of the converter circuit and a current detector provided in a condenser circuit to control a condenser current flowing through the smoothing condenser to be a set value. The condenser current is controlled to be the set value (e.g. zero) to thereby reduce the capacity of the smoothing condenser and make the converter small.

REFERENCES:
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patent: 5285029 (1994-02-01), Araki
patent: 5663627 (1997-09-01), Ogawa
patent: 5982136 (1999-11-01), Pelly
patent: 2002/0141212 (2002-10-01), Ishida
patent: 2003/0057003 (2003-03-01), Kawada
patent: 2005/0105306 (2005-05-01), Deng
patent: 2005/0264255 (2005-12-01), Maruyama
patent: 08-266059 (1996-10-01), None
patent: 2003-289671 (2003-10-01), None
Mammano, Current Sensing Solutions for Power Supply Designers, 2001, Texas Instruments Incorporated, 1-1-1-34.

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