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. 04, 2017

Filed:

Oct. 01, 2015
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Taejoong Lee, Daejeon, KR;

Sang Hoon Lee, Daejeon, KR;

Younghwan Kim, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); H03K 17/72 (2006.01); H03K 17/78 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0845 (2013.01); H03K 17/72 (2013.01); H03K 17/78 (2013.01); H05B 33/0884 (2013.01);
Abstract

An apparatus and a method for controlling an isolated switch are disclosed. The apparatus and the method for controlling an isolated switch according to the present invention, configure a circuit so as to maintain a light emitting diode (LED) included in an isolated switch in an OFF state at normal times and control the LED in an ON state when an event occurs in an isolated switch such as a photo MOS relay to reduce power consumed for emitting the LED by decreasing a duration for which the LED is maintained in an emission state and improve durability of a system adopting the isolated switch by improving a life-span of the isolated switch.


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