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:
Jan. 08, 2013

Filed:

Mar. 07, 2011
Applicants:

Eftimie Caraghiorghiopol, San Jose, CA (US);

Laszlo Lipcsei, Campbell, CA (US);

Alexandru Hartular, San Jose, CA (US);

Marian Niculae, San Jose, CA (US);

Inventors:

Eftimie Caraghiorghiopol, San Jose, CA (US);

Laszlo Lipcsei, Campbell, CA (US);

Alexandru Hartular, San Jose, CA (US);

Marian Niculae, San Jose, CA (US);

Assignee:

O2Micro Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A power management system includes a first switch, a second switch, and a controller coupled to the first and second switches. The first switch has a first transfer terminal. The second switch has a second transfer terminal. The controller controls power conversion by turning on a third switch periodically. The first and second transfer terminals and a third transfer terminal of the third switch are coupled to a common node. The resistance between the first transfer terminal and the common node, the resistance between the second transfer terminal and the common node, and the resistance between the third transfer terminal and the common node are substantially equal to zero.


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