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:
Oct. 15, 2002
Filed:
Aug. 24, 2001
John M. Rein, Elgin, IL (US);
Jeffrey C. Perkins, Roselle, IL (US);
Northrop Grumman Corporation, Los Angeles, CA (US);
Abstract
A high efficiency power converter for generating a high voltage from a low voltage supply. The power converter includes a resonant circuit in electrical communication with the low voltage supply via a switch. The power converter further includes a control circuit in electrical communication with the switch and a resonant inductor of the resonant circuit. The control circuit is operative to open and close the switch in response to the current flowing through the resonant inductor. A transformer is connected parallel to the resonant inductor and is operative to generate the high output voltage from the voltage of the resonant inductor. In the preferred embodiment, the switch is closed at the point in time when the current in the resonant inductor passes zero. At this time, switching conditions within the switch are ideal such that any losses experienced by the switch are conduction losses thereby resulting in improved efficiency of the power converter.