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:
Nov. 24, 2015

Filed:

Sep. 13, 2012
Applicant:

Kuo-fan Lin, Taoyuan County, TW;

Inventor:

Kuo-Fan Lin, Taoyuan County, TW;

Assignee:

FSP TECHNOLOGY INC., Taoyuan Dist., Taoyuan, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01); H01L 23/495 (2006.01); H01L 21/56 (2006.01); H01L 23/62 (2006.01); H01L 25/16 (2006.01); H01L 23/498 (2006.01); H01L 23/00 (2006.01); H01L 23/31 (2006.01);
U.S. Cl.
CPC ...
H01L 23/4952 (2013.01); H01L 21/56 (2013.01); H01L 23/498 (2013.01); H01L 23/49562 (2013.01); H01L 23/62 (2013.01); H01L 24/06 (2013.01); H01L 24/14 (2013.01); H01L 24/49 (2013.01); H01L 25/16 (2013.01); H01L 23/3107 (2013.01); H01L 24/13 (2013.01); H01L 24/16 (2013.01); H01L 24/29 (2013.01); H01L 24/32 (2013.01); H01L 24/45 (2013.01); H01L 24/48 (2013.01); H01L 24/73 (2013.01); H01L 2224/0401 (2013.01); H01L 2224/0603 (2013.01); H01L 2224/13111 (2013.01); H01L 2224/1403 (2013.01); H01L 2224/14051 (2013.01); H01L 2224/16106 (2013.01); H01L 2224/16245 (2013.01); H01L 2224/29339 (2013.01); H01L 2224/32013 (2013.01); H01L 2224/32245 (2013.01); H01L 2224/45144 (2013.01); H01L 2224/4813 (2013.01); H01L 2224/48091 (2013.01); H01L 2224/48247 (2013.01); H01L 2224/49107 (2013.01); H01L 2224/49113 (2013.01); H01L 2224/73265 (2013.01); H01L 2924/1301 (2013.01); H01L 2924/1305 (2013.01); H01L 2924/1306 (2013.01); H01L 2924/13055 (2013.01); H01L 2924/13091 (2013.01); H01L 2924/181 (2013.01); H01L 2924/3011 (2013.01);
Abstract

A snubber circuit includes: a capacitor including a first terminal and a second terminal, where the first terminal of the capacitor is electrically connected to a first terminal of the snubber circuit; and a Bipolar Junction Transistor (BJT), where one of the emitter and the collector of the BJT is electrically connected to the second terminal of the capacitor, and the other one of the emitter and the collector of the BJT is electrically connected to a second terminal of the snubber circuit. The snubber circuit can be electrically connected in parallel to an active component or a load to protect the circuitry connected to the load, and more particularly to absorb spike or noise generated during high-frequency switching of the active component to recycle energy, in order to achieve the goal of reducing spike voltages and enhancing efficiency.


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