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:
Dec. 31, 2019

Filed:

Dec. 15, 2017
Applicant:

Quanta Computer Inc., Taoyuan, TW;

Inventor:

Wei-Ting Yen, Taoyuan, TW;

Assignee:

QUANTA COMPUTER INC., Guishan Dist., Taoyuan, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/46 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H02J 7/0031 (2013.01); H02J 7/0063 (2013.01); H02J 2007/004 (2013.01); H02J 2007/0067 (2013.01);
Abstract

A power management circuit for a battery cell is provided. The battery cell is coupled to a load through an output terminal. The power management circuit includes a current detection circuit, a loading determination circuit, and a voltage determination circuit. The current detection circuit detects a discharge current of the battery cell when the battery cell is discharged through the load to generate a discharge-current signal. The loading determination circuit determines a loading value of the load according to the discharge-current signal to generate a loading signal. When the battery voltage of the battery cell drops to the cut-off voltage, the power management circuit terminates the discharge of the battery cell through the load.


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