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.

Date of Patent:
Jan. 09, 2018

Filed:

Oct. 21, 2014
Applicant:

National Semiconductor Corporation, Santa Clara, CA (US);

Inventors:

Luan Minh Vu, San Jose, CA (US);

Thomas Y. Tse, Santa Clara, CA (US);

Tuong Hoang, San Jose, CA (US);

Assignee:

NATIONAL SEMICONDUCTOR CORPORATION, Santa Clara, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/48 (2006.01); G01K 7/22 (2006.01); G01R 31/36 (2006.01);
U.S. Cl.
CPC ...
G01K 7/22 (2013.01); G01R 31/3606 (2013.01); H01M 10/486 (2013.01); Y02E 60/12 (2013.01);
Abstract

A battery temperature monitoring circuit, which has a cold comparator and a hot comparator, achieves high accuracy in a small cell size by utilizing a cold current optimized for the cold comparator and a cold reference voltage, and a hot current optimized for the hot comparator and a hot reference voltage, along with switching circuitry that provides the cold current to the cold comparator as the battery temperature approaches the cold trip temperature, and the hot current to the hot comparator as the battery temperature approaches the hot trip temperature.


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