Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Reexamination Certificate
2005-10-11
2005-10-11
Laxton, Gary L. (Department: 2838)
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
Reexamination Certificate
active
06954367
ABSTRACT:
A pulse width modulated soft-switching power converter has a transformer with a primary winding and a secondary winding, a secondary circuit coupled to the secondary winding, and a pair of main switches and a pair of auxiliary switches coupled to the primary winding. The main switches and auxiliary switches intermittently conduct an input voltage source to the primary winding of the transformer to operate the soft-switching power converter in four operation stages in each switching cycle. The main switches conduct the input voltage source to the transformer in a first operation stage. In a second operation stage, the conduction is cut off. The transformer operates as an inductor with the auxiliary switches switched on under zero-voltage or zero-current switching mode in a third operation stage. In the fourth operation stage, auxiliary switches are switched off to achieve zero-voltage transition.
REFERENCES:
patent: 4864482 (1989-09-01), Quazi et al.
patent: 5442540 (1995-08-01), Hua et al.
patent: 5715150 (1998-02-01), Stava
patent: 5719754 (1998-02-01), Fraidlin et al.
patent: 5838558 (1998-11-01), Tan et al.
patent: 5973939 (1999-10-01), Tan
patent: 6069798 (2000-05-01), Liu
patent: 6191960 (2001-02-01), Fraidlin et al.
patent: 6356462 (2002-03-01), Jang et al.
patent: 6466458 (2002-10-01), Zhang et al.
patent: 6744649 (2004-06-01), Yang et al.
Nilsson et al, Electric Circuits, 1996, Addison-Wesley Publishing, 5th Edition, pp. 506, 507.
Chen Chern-Lin
Lin Jenn-yu G.
Yang Ta-yung
Jiang Chyun IP Office
Laxton Gary L.
System General Corp.
LandOfFree
Soft-switching power converter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Soft-switching power converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soft-switching power converter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3465198