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.
Patent No.:
Date of Patent:
Dec. 13, 2016
Filed:
May. 22, 2014
Applicant:
Marvell World Trade Ltd, St. Michael, BB;
Inventors:
Sehat Sutardja, Los Altos Hills, CA (US);
Pantas Sutardja, Los Gatos, CA (US);
Wanfeng Zhang, Palo Alto, CA (US);
Assignee:
Marvell World Trade Ltd., St. Michael, BB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H05B 33/08 (2006.01); H02M 1/42 (2007.01); H02M 7/219 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0815 (2013.01); H02M 1/4258 (2013.01); H02M 3/335 (2013.01); H02M 3/33507 (2013.01); H02M 7/219 (2013.01); H05B 33/0809 (2013.01); H05B 33/0845 (2013.01); Y02B 70/126 (2013.01);
Abstract
Aspects of the disclosure provide a circuit that includes a detector and a controller. The detector is configured to detect a firing start by a triode for alternating current (TRIAC) in a power supply. The controller is configured to control a switch in connection with a magnetic component in response to the firing start to shape a profile of a current pulled from the power supply to satisfy a latch current requirement and a hold current requirement of the TRIAC.