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:
Mar. 17, 2020

Filed:

May. 26, 2017
Applicant:

Renesas Electronics America Inc., Santa Clara, CA (US);

Inventors:

Tetsuo Sato, San Jose, CA (US);

Tsutomu Kawano, Tokyo, JP;

Koji Kashimoto, Tokyo, JP;

Takao Hidaka, Tokyo, JP;

Tsuyoshi Ota, Tokyo, JP;

Ryoji Kato, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01); H01M 10/48 (2006.01); G01R 19/00 (2006.01); G01R 31/382 (2019.01);
U.S. Cl.
CPC ...
H02J 7/0047 (2013.01); G01R 19/0092 (2013.01); H01M 10/48 (2013.01); H02J 7/00 (2013.01); H02J 7/0031 (2013.01); H02J 7/0068 (2013.01); G01R 31/382 (2019.01); H02J 2007/004 (2013.01); H02J 2007/0037 (2013.01);
Abstract

A battery management method and apparatus. In one embodiment of the method, a source current is divided into Ic and Icr. Ic is transmitted to and charges a battery. A first voltage is generated that is related to Icr. The first voltage is converted into a first digital signal. A processing unit receives and processes the first digital signal in accordance with instructions stored in a memory. The transmission of Ic to the battery is interrupted in response to the processing unit processing the first digital signal. Current provided by the battery is divided into Idc and Idcr. Idc is transmitted to a device. A second voltage is generated that is related to Idcr. The second voltage is converted into a second digital signal. The processing unit receives and processes the second digital signal in accordance with instructions stored in the memory. The transmission of Idc to the battery is interrupted in response to the processing unit processing the second digital signal.


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