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. 03, 2006
Filed:
Mar. 12, 2004
Applicants:
Ching-fu Hsueh, Taoyuan, TW;
Wan-chin Hsu, Taoyuan, TW;
Chih-shin Huang, Taoyuan, TW;
Inventors:
Assignee:
Darfon Electronics Corp., Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/30 (2006.01); H05B 41/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A transformer. The transformer drives a plurality of lighting tubes and comprises a coupling iron core, a first winding around the coupling iron core, a first bobbin disposed between the first winding and the coupling iron core, a plurality of second windings, independent of each other and respectively winding around the exterior of the first winding, wherein the second windings have the same winding number, and a second bobbin disposed between the first winding and one second winding.