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:
Oct. 23, 2007
Filed:
May. 31, 2006
Jung Chul Gong, Seoul, KR;
Sang Cheol Shin, Kyungki-do, KR;
Byoung Own Min, Suwon, KR;
Chang Woo Ha, Suwon, KR;
Jung Chul Gong, Seoul, KR;
Sang Cheol Shin, Kyungki-do, KR;
Byoung Own Min, Suwon, KR;
Chang Woo Ha, Suwon, KR;
Samsung Electro-Mechanics Co., Ltd., Kyungki-Do, KR;
Abstract
The invention relates to a driving apparatus for a CCFL capable of providing a high output voltage necessary for an open lamp and thereby satisfying a voltage standard required to drive the lamp. In the driving apparatus, an inverter made of a switching circuit of a half-bridge structure is used to generate current for driving the lamp. If the lamp is open, a tuning capacitor current of an oscillator, which provides a reference clock for driving a switch of the inverter is incremented so that a clock frequency which is a basis for a switching speed of the inverter is boosted. This consequently increases the switching speed of the inverter and then an output voltage.