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. 05, 2017

Filed:

Oct. 31, 2011
Applicants:

Dong Chen, Shanghai, CN;

Song YE, Shanghai, CN;

Xiaozhong Lin, Shanghai, CN;

Inventors:

Dong Chen, Shanghai, CN;

Song Ye, Shanghai, CN;

Xiaozhong Lin, Shanghai, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 7/34 (2006.01); H02J 9/00 (2006.01); H02J 9/06 (2006.01);
U.S. Cl.
CPC ...
H02J 9/00 (2013.01); H02J 9/061 (2013.01); Y10T 307/615 (2015.04);
Abstract

A device and a method for power management of a control apparatus, which control apparatus comprises: a main power source (), a backup power source () and a functional circuit (). The functional circuit outputs detection information. The power management device comprises a selection circuit () suitable for choosing the main power source or the backup power source to supply power to the functional circuit; and a control circuit (), suitable for switching off the power supply pathway from the backup power source to the functional circuit when the selection circuit chooses the backup power source for supplying power but has not received a trigger signal, and for switching on the power supply pathway from the backup power source to the functional circuit when the selection circuit chooses the backup power source for supplying power and has received a trigger signal.


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