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:
May. 01, 2001
Filed:
Jun. 22, 2000
Applicant:
Inventor:
Baoson Nguyen, Dallas, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 3/16 ;
U.S. Cl.
CPC ...
G05F 3/16 ;
Abstract
In one aspect, the present invention provides a method of generating a substantially constant voltage. A bandgap reference circuit (,) is trimmed such that a voltage output (V,) from the bandgap reference circuit is at its peak value when an operating temperature is at its minimum value within a specified operating temperature range. A plurality of additional current sources (,) are also provided with the bandgap reference circuit. Each current source is designed to successively provide additional current as the operating temperature increases within the specified operating temperature range.