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:
Feb. 06, 2018

Filed:

Sep. 02, 2015
Applicant:

Marvell International Ltd., Hamilton, BM;

Inventors:

Siew Yong Chui, Singapore, SG;

Pantas Sutardja, Los Gatos, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 83/00 (2006.01); H02J 3/00 (2006.01); G05F 3/04 (2006.01);
U.S. Cl.
CPC ...
H02J 3/005 (2013.01); G05F 3/04 (2013.01);
Abstract

Aspects of the disclosure provide a circuit that includes a switch, a current path circuit and a control circuit. The switch is turned on/off to direct a power supply with a periodic varying voltage to the current path circuit. The current path circuit is coupled with the switch in series to provide a discharge current path to the power supply. The control circuit is configured to detect a time duration during which the periodic varying voltage decreases, and turn on the switch during the time duration to provide the discharge current path to the power supply.


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