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:
Mar. 19, 2019
Filed:
Nov. 24, 2015
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Matthias Arnold, Zolling, DE;
Asif Qaiyum, Freising, DE;
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 (2006.01); G05F 3/26 (2006.01); G05F 3/30 (2006.01); G05F 1/46 (2006.01);
U.S. Cl.
CPC ...
G05F 3/267 (2013.01); G05F 3/30 (2013.01); G05F 1/10 (2013.01); G05F 1/46 (2013.01);
Abstract
A proportional to absolute temperature (PTAT) generator, for example, generates a PTAT current (IPTAT) and a VBE (voltage base-to-emitter) in a first regulation loop. A voltage-to-current converter is operable to generate a complementary to absolute temperature current (ICTAT). The IPTAT and ICTAT are summed to obtain a zero temperature coefficient current (IZTC). One ICTAT and one resistor are used to generate the IZTC signal.