The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 2004
Filed:
Mar. 14, 2003
Applicant:
Inventors:
Thomas M. Ingman, Somis, CA (US);
Charles E. Mullett, Santa Paula, CA (US);
Assignee:
Condor D.C. Power Supplies, Inc., Oxnard, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 7/68 ;
U.S. Cl.
CPC ...
H02M 7/68 ;
Abstract
A circuit and method provides a regulated dc—dc power conversion. Active switches, saturable core inductors, and a diode are used in a quasi-synchronous circuit. During a part of the cycle (the “blocking interval”) free-wheeling current is routed through free-wheeling diode while a saturable core inductor is in a high-impedance, blocking state. During other parts of the cycle an ac inverter voltage is rectified by active switching devices, preferably field effect transistors (FETs). The circuit provides regulated, low voltage outputs with low conversion losses.