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:
Jul. 18, 2017

Filed:

Nov. 05, 2015
Applicant:

Infineon Technologies Austria Ag, Villach, AT;

Inventors:

Mingping Mao, Singapore, SG;

Junyang Luo, Singapore, SG;

Guoxing Zhang, Singapore, SG;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/36 (2007.01); H02M 1/42 (2007.01); H02M 3/337 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/36 (2013.01); H02M 1/4225 (2013.01); H02M 3/337 (2013.01); H02M 2001/007 (2013.01); H02M 2001/008 (2013.01); H02M 2001/0032 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/126 (2013.01); Y02B 70/1433 (2013.01); Y02B 70/1491 (2013.01); Y02B 70/16 (2013.01);
Abstract

According to an embodiment, a circuit comprising includes a first switching circuit coupled to a power supply input, a second switching circuit coupled to an output of the first switching circuit, a supply capacitor coupled to the second switching circuit, and a startup cell coupled to the power supply input and the supply capacitor. The startup cell is configured to electrically couple the power supply input to the supply capacitor when the second switching circuit is not actively switching. The startup cell is also configured to electrically decouple the power supply input from the supply capacitor when the second switching circuit is actively switching.


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