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:
Jul. 21, 2009
Filed:
Jul. 13, 2007
Hyeon-yong Jang, Osan-si, KR;
Seong-sik Choi, Seoul, KR;
Du-hwan Chung, Suwon-si, KR;
Moon-shik Kang, Seongnam-si, KR;
Song-yi Han, Yongin-si, KR;
Hyeon-Yong Jang, Osan-si, KR;
Seong-Sik Choi, Seoul, KR;
Du-Hwan Chung, Suwon-si, KR;
Moon-Shik Kang, Seongnam-si, KR;
Song-Yi Han, Yongin-si, KR;
Abstract
A lamp driving circuit includes: a voltage supply part including a first voltage supply part and a second voltage supply part; a first circuit part including a first terminal, a second terminal and a first coil; a second circuit part including a second coil electromagnetically coupled to the first coil and which supplies a voltage to a lamp; and an electric current detecting part which detects an electric current of the first coil and includes a detecting resistor and an electric current detector.