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:
Aug. 23, 2016

Filed:

Feb. 10, 2014
Applicant:

Marvell World Trade Ltd., St. Michael, BB;

Inventors:

Jinho Choi, Saratoga, CA (US);

Tuyen Doan, San Jose, CA (US);

Yee-Huan Ng, Fremont, CA (US);

Wanfeng Zhang, Palo Alto, CA (US);

Assignee:

Marvell World Trade Ltd., St. Michael, BB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/44 (2007.01); H05B 33/08 (2006.01); H02M 1/14 (2006.01); H02M 3/158 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/44 (2013.01); H02M 1/14 (2013.01); H02M 3/1582 (2013.01); H05B 33/0815 (2013.01); H02M 2001/0064 (2013.01);
Abstract

Power converters that produce less noise are disclosed. For example, in an embodiment, power converter can include a first inductor magnetically coupled to a second inductor, wherein a first end of the second inductor is electrically open and a second end of the second inductor is electrically coupled to ground via a second capacitor, a transistor electrically connected to the first inductor, and control circuitry to control switching of the transistor, wherein when the transistor is repeatedly switched on and off by the control circuitry, a current loop is formed through the transistor, the second capacitor, the first inductor and the second inductor, the current loop causing a reduced amount of switching noise to be generated by the power converter.


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