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:
Sep. 18, 2007
Filed:
Jan. 27, 2006
Ching-fu Hsueh, Taoyuan, TW;
Cheng-hsien Chien, Taoyuan, TW;
Ching-Fu Hsueh, Taoyuan, TW;
Cheng-Hsien Chien, Taoyuan, TW;
Darfon Electronics Corp., Taoyuan, TW;
Abstract
A multi-lamp driver driving first and second lamps and comprising a driving circuit and a transformer. The transformer comprises a winding rack, a magnetic core, two primary winding sets, and two secondary winding sets. One portion of the magnetic core is inserted into the winding rack. The two primary winding sets are wound around the winding rack and receive low-voltage signals from the driving circuit. The two secondary winding sets are wound around the winding rack, and two high-voltage signals are induced to respectively drive the first and second lamps. The primary winding sets have substantially the same number of windings, and the secondary winding sets have substantially the same number of windings.