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. 11, 2007
Filed:
Dec. 11, 2006
Shih-an Liang, Taoyuan Hsien, TW;
Chia-jung Tang, Taoyuan Hsien, TW;
Chih-ming HU, Taoyuan Hsien, TW;
Ching-wen Huang, Taoyuan Hsien, TW;
Shih-An Liang, Taoyuan Hsien, TW;
Chia-Jung Tang, Taoyuan Hsien, TW;
Chih-Ming Hu, Taoyuan Hsien, TW;
Ching-Wen Huang, Taoyuan Hsien, TW;
SPI Electronic Co., Ltd., Taoyuan, Taoyuan Hsien, TW;
Abstract
A transformer having a leakage inductance control structure includes a primary coil, a secondary coil formed at a selected coil ratio relative to the primary coil to transform voltage and output electric power, and a leakage inductance control coil which is wound on the secondary coil in an insulation manner according to a selected coupling efficiency and electrically connected to the primary coil. Through electromagnetic coupling of the leakage inductance control coil and the secondary coil a power control signal is output and sent to the primary coil to control leakage inductance of the primary coil.