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:
Apr. 05, 2016

Filed:

Mar. 12, 2015
Applicant:

General Led, Inc., San Antonio, CA (US);

Inventor:

Vung Van Vo, San Antonio, CA (US);

Assignee:

General LED, Inc., San Antonio, TX (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); H05B 37/03 (2006.01); H05B 41/46 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0893 (2013.01); H05B 33/0824 (2013.01); H05B 37/03 (2013.01); H05B 41/46 (2013.01); Y02B 20/341 (2013.01);
Abstract

A low power bypass circuit for use with a string of series-connected LEDs includes a semiconductor diode and resistor connected in series, which semiconductor diode and resistor combination become conductive upon the failure of an LED or upon the improper, reverse polarity connection of the string of series-connected LEDs to a power supply. When the semiconductor and resistor combination becomes conductive, a three-terminal gate-controlled semiconductor switching device becomes conductive, thereby bypassing the failed LED and protecting the integrity of the string of series-connected LEDs upon the improper reverse polarity connection of the string of series-connected LEDs to a power supply.


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