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:
Nov. 18, 2003
Filed:
Aug. 24, 2001
Ajit Dubhashi, Redondo Beach, CA (US);
Vijay Bolloju, Cerritos, CA (US);
Bertrand Vaysse, Cerritos, CA (US);
International Rectifier Corporation, El Segundo, CA (US);
Abstract
A novel power supply control circuit topology uses a standard power supply controller to control a high side switch in an electronic circuit. A feedback voltage referenced to ground (or negative bus level) is level-shifted to a high side controller by means of a diode/capacitor/resistor network. Power to the high side controller is supplied by using the feedback output voltage. The circuit can be used instead of conventional flyback converters, particularly in low voltage applications. The circuit requires fewer pins on the transformer/inductor, leading to lower cost and size, particularly as compared to prior art flyback converters. Lower voltage rating required for the switch reduces noise and losses in the device.