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. 10, 1999
Filed:
Mar. 06, 1998
Applicant:
Inventor:
Loveday H Mweene, Mesquite, TX (US);
Assignee:
Lucent Technologies Inc., Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 44 ;
Abstract
For use with a power converter having a rectifier that receives current from a secondary side of transformer and delivers the current to an output thereof via an output inductor, a low loss clamp for, and method of, attenuating ringing energy in the secondary side. In one embodiment, the clamp includes: (1) an auxiliary transformer coupled across a component in the secondary side and (2) an auxiliary switch, interposed between the auxiliary transformer and the output, that operates as a function of a voltage of the output to cause the auxiliary transformer to receive at least a portion of the ringing energy and deliver the portion to the output.