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.:
Date of Patent:
May. 21, 2013
Filed:
Sep. 21, 2010
Sang Kyoo Han, Seoul, KR;
Sung Soo Hong, Seoul, KR;
Chung Wook Roh, Seoul, KR;
Sang Gab Park, Gyunggi-do, KR;
Young Seung Roh, Gyunggi-do, KR;
Hyo Joong an, Busan, KR;
Heung Gyoon Choi, Gyunggi-do, KR;
Han Hee Lee, Gyunggi-do, KR;
Sang Kyoo Han, Seoul, KR;
Sung Soo Hong, Seoul, KR;
Chung Wook Roh, Seoul, KR;
Sang Gab Park, Gyunggi-do, KR;
Young Seung Roh, Gyunggi-do, KR;
Hyo Joong An, Busan, KR;
Heung Gyoon Choi, Gyunggi-do, KR;
Han Hee Lee, Gyunggi-do, KR;
Abstract
There is provided a lamp driver including: a power supplying part switching an input power, supplying a driving power to at least one lamp, and controlling brightness of the at least one lamp according to a dimming signal; a signal supplying part supplying a first comparison result signal obtained by comparing a current sensing signal sensing a current flowing through the at least one lamp with a reference signal having a current level set beforehand when the dimming signal is a logic high signal, and supplying a second comparison result signal having a voltage level set beforehand when the dimming signal is a logic low signal; and a controlling part controlling the switching of the power supplying part according to a signal being supplied by the signal supplying part.