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:
Jan. 24, 2012
Filed:
Oct. 12, 2007
Kern Wai Wong, Sunnyvale, CA (US);
Kern Wai Wong, Sunnyvale, CA (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
The invention relates to a regulator with an under-voltage lock-out (UVLO) circuit and a reference generator circuit (e.g., a band-gap reference). The UVLO circuit includes an internal band-gap reference circuit and a comparison circuit. The UVLO circuit compares an input voltage with the output of the internal band-gap reference circuit to selectively enable the regulator. The output of the internal band-gap reference circuit is also employed to power the reference generator circuit. The reference generator circuit provides a reference signal which is employed to control steady-state regulation. The regulator also includes an operational amplifier circuit for increasing the drive and/or voltage level of the internal band-gap reference circuit output.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile