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. 21, 2003
Filed:
Jan. 09, 2002
Pierre R. Irissou, Sunnyvale, CA (US);
ASIC Advantage, Inc., Sunnyvale, CA (US);
Abstract
An integrated circuit power supply controller for use in a power supply that provides voltage regulating and current limiting functions. A current limit circuit is provided that includes a band-gap circuit for producing a reference voltage for precisely setting the current limit point, with the band-gap circuit being powered by a current sense voltage indicative of the load current rather than being powered by the regulated output voltage. Thus, the current limit circuit will operate even the power supply output is shorted. Voltage control circuitry is provided also includes a band-gap circuit for precisely controlling the magnitude of the regulated output voltage.