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:
Feb. 18, 2008
Filed:
Feb. 17, 2005
Applicants:
Jay Prager, Groton, MA (US);
Patrizio Vinciarelli, Boston, MA (US);
Inventors:
Jay Prager, Groton, MA (US);
Patrizio Vinciarelli, Boston, MA (US);
Assignee:
VLT Corporation, San Antonio, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/56 (2005.12);
U.S. Cl.
CPC ...
Abstract
An apparatus includes (a) switching power conversion circuitry including an inductive element connected to deliver energy via a unidirectional conducting device from an input source to a load during a succession of power conversion cycles, and circuit capacitance that can resonate with the inductive element during a portion of the power conversion cycles to cause a parasitic oscillation, and (b) clamp circuitry connected to trap energy in the inductive element and reduce the parasitic oscillation.