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:
Apr. 29, 2008
Filed:
Jun. 23, 2006
Tien-hsiang Meng, Tu-Cheng, TW;
Chi-hsiung Lee, Tu-Cheng, TW;
Che-chen Fan Chiang, Tu-Cheng, TW;
Kuo-chi Liu, Tu-Cheng, TW;
Tien-Hsiang Meng, Tu-Cheng, TW;
Chi-Hsiung Lee, Tu-Cheng, TW;
Che-Chen Fan Chiang, Tu-Cheng, TW;
Kuo-Chi Liu, Tu-Cheng, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A device for driving a light source (L) including a first lamp (a) and a second lamp (a) includes two power supply circuits, two transformers ('), and two current balancing components (′). Each power supply circuit includes a direct current (DC) power source (or′) and a DC to alternating current (AC) converter (or′). The DC/AC converters convert DC signals received from the corresponding DC power sources to AC signals. The transformers correspondingly convert the AC signals to other AC signals. The current balancing components are respectively connected between the transformers and the lamps. The feedback circuits correspondingly feed back current flowing through the lamps to the DC/AC converters.