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. 29, 2016

Filed:

Jul. 18, 2013
Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Hiroyuki Watanabe, Kanagawa, JP;

Mitsuru Yamane, Saitama, JP;

Assignee:

SONY CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/217 (2006.01); G01R 19/00 (2006.01); H02M 7/04 (2006.01); H02M 1/36 (2007.01); H02M 1/42 (2007.01); G01R 31/40 (2014.01);
U.S. Cl.
CPC ...
G01R 19/00 (2013.01); G01R 31/40 (2013.01); H02M 1/36 (2013.01); H02M 1/4225 (2013.01); H02M 7/04 (2013.01); Y02B 70/126 (2013.01);
Abstract

There is provided a power supply monitoring circuit including a holding part holding, every time a local maximum value of a power supply voltage which fluctuates is detected, the local maximum value as a local maximum voltage value, a power stop detector detecting whether or not supply of the power supply voltage is stopped based on whether or not a state that a value of the power supply voltage is smaller than a first reference value according to the local maximum voltage value continues longer than a predetermined period, and a reference value controller decreasing the first reference value during a period in which the value of the power supply voltage exceeds a second reference value smaller than the first reference value and in which stop of the supply of the power supply voltage is detected.


Find Patent Forward Citations

Watanabe, Hiroyuki. (2016). Power supply monitoring circuit, ac/dc conversion apparatus and control method of power supply monitoring circuit (U.S. Patent No. 9297838). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9297838

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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