Electric power conversion systems – Current conversion – Including an a.c.-d.c.-a.c. converter
Reexamination Certificate
2005-08-30
2008-12-30
Ullah, Akm E (Department: 2838)
Electric power conversion systems
Current conversion
Including an a.c.-d.c.-a.c. converter
C363S034000, C363S035000, C363S036000, C363S038000
Reexamination Certificate
active
07471525
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:
patent: 4521840 (1985-06-01), Hoadley
patent: 5285029 (1994-02-01), Araki
patent: 5982136 (1999-11-01), Pelly
patent: 2002/0141212 (2002-10-01), Ishida et al.
patent: 2003/0057003 (2003-03-01), Kawada et al.
patent: 2005/0105306 (2005-05-01), Deng et al.
patent: 2005/0264255 (2005-12-01), Maruyama et al.
patent: 1067632 (1993-01-01), None
patent: 1067632 (1993-01-01), None
patent: 54039843 (1979-03-01), None
patent: 6-153526 (1994-05-01), None
patent: 7-79567 (1995-03-01), None
patent: 8-19263 (1996-01-01), None
patent: 2002-315343 (2002-10-01), None
patent: 2003-102177 (2003-04-01), None
Ando Tatsuo
Endo Tsunehiro
Iwaji Yoshitaka
Kurita Yoshiaki
Notohara Yasuo
Antonelli, Terry Stout & Kraus, LLP.
Hitachi Appliances, Inc.
Ullah Akm E
Zhang Jue
LandOfFree
Converter and power converter that becomes it with the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Converter and power converter that becomes it with the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Converter and power converter that becomes it with the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4044694