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.:

US 8148853 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 03, 2012

Filed:

Dec. 30, 2009
Applicants:

Narayana Prakash Saligram, Bangalore, IN;

Sreejakumar Sreekantan Nair, Karnataka, IN;

Pradeep Thalli, Karnataka, IN;

Inventors:

Narayana Prakash Saligram, Bangalore, IN;

Sreejakumar Sreekantan Nair, Karnataka, IN;

Pradeep Thalli, Karnataka, IN;

Assignee:

American Power Conversion Corporation, West Kingston, RI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 47/00 (2006.01); H01H 35/00 (2006.01); H01H 83/18 (2006.01); H02H 3/02 (2006.01); H02H 3/42 (2006.01);
U.S. Cl.
CPC ...
Abstract

A switch circuit and method for converting a hard switch into a soft switch. In one example, the circuit includes a first switch having a first node and a second node, and a switch control circuit coupled in parallel with the first switch between the first and second nodes. The switch control circuit includes a series resonant circuit including a capacitor and an inductor coupled together in series, a second switch coupled in parallel with the series resonant circuit, a third switch coupled in series between the first node and the series resonant circuit, and a first diode coupled between the series resonant circuit and the second node, an negative terminal of the first diode being coupled to the second node.


Find Patent Forward Citations

Saligram, Narayana. (2012). Switching method and apparatus (U.S. Patent No. 8148853). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8148853

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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