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.

Date of Patent:
Nov. 23, 2010

Filed:

May. 10, 2009
Applicants:

Chih-chan Ger, Jhongli, TW;

Chia-kun Chen, Jhongli, TW;

Inventors:

Chih-Chan Ger, Jhongli, TW;

Chia-Kun Chen, Jhongli, TW;

Assignee:

Ampower Technology Co., Ltd., Jhongli, Taoyuan County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 17/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A transformer includes a bobbin and a core assembly. The bobbin includes a pair of first winding portions to wrap primary winding coils thereon and a second winding portion between the pair of first winding portions to wrap secondary winding coils thereon. The core assembly includes a first core and a second core. At least one gap is formed between the first core and the second core at opposite sides of the second winding portion to adjust leakage inductance of the transformer. The gaps and the winding coils of the second winding portion are positioned in a same magnetic circuit, the magnetic circuit generating the leakage inductance of the transformer.


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