Electric power conversion systems – Current conversion – With starting arrangement
Reexamination Certificate
2007-05-30
2009-08-04
Ullah, Akm E (Department: 2838)
Electric power conversion systems
Current conversion
With starting arrangement
C323S908000, C363S050000
Reexamination Certificate
active
07570501
ABSTRACT:
In a DC to DC converter, first and second primary windings are magnetically coupled to a first secondary winding. Third and fourth primary windings are magnetically coupled to a second secondary winding. The first and second primary windings are magnetically coupled to the first secondary winding. The third and fourth primary windings are magnetically coupled to the second secondary winding. The first and third primary windings are coupled in series to form a first coil member. The second and fourth primary windings are coupled in series to form a second coil member. One end of the first coil member is coupled to the first positive power line. A first switching element is coupled between the first negative power line and the other end of the first coil member. A first capacitor is coupled between the first negative terminal and one end of the second coil member.
REFERENCES:
patent: 3778677 (1973-12-01), Kriege
patent: 4897773 (1990-01-01), Bilczo
patent: 5291382 (1994-03-01), Cohen
patent: 5349157 (1994-09-01), Blankenship
patent: 5684680 (1997-11-01), Tahhan et al.
patent: 5710697 (1998-01-01), Cooke et al.
patent: 5805434 (1998-09-01), Vinciarelli et al.
patent: 6005780 (1999-12-01), Hua
patent: 6128204 (2000-10-01), Munro et al.
patent: 6304460 (2001-10-01), Cuk
patent: 6400582 (2002-06-01), Hemena et al.
patent: 6496392 (2002-12-01), Odell
patent: 6801028 (2004-10-01), Kernahan et al.
patent: 6922346 (2005-07-01), Wofford et al.
patent: 6956748 (2005-10-01), Nakagawa
patent: 2003/0029654 (2003-02-01), Shimane et al.
patent: 0 396 126 (1990-11-01), None
patent: 1 378 988 (2004-01-01), None
patent: A-09-84338 (1997-03-01), None
patent: A-2000-324829 (2000-11-01), None
patent: A-2002-58249 (2002-02-01), None
patent: A-2003-102175 (2003-04-01), None
English translation of French Preliminary Search Report issued Jun. 2, 2008.
Kawasaki Koji
Shigeoka Keiji
Yamashita Tsuyoshi
Behm Harry
Denso Corporation
Nippon Soken Inc.
Oliff & Berridg,e PLC
Ullah Akm E
LandOfFree
DC-DC converter with capacitor precharging and duty ratio... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with DC-DC converter with capacitor precharging and duty ratio..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC-DC converter with capacitor precharging and duty ratio... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4122673