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:
Feb. 12, 2008

Filed:

Aug. 24, 2005
Applicants:

Sang-gil Lee, Seoul, KR;

Don-chan Cho, Gyeonggi-do, KR;

Jong-seo Lee, Gyeonggi-do, KR;

Gi-cherl Kim, Gyeonggi-do, KR;

Sang-yu Lee, Gyeonggi-do, KR;

Inventors:

Sang-Gil Lee, Seoul, KR;

Don-Chan Cho, Gyeonggi-do, KR;

Jong-Seo Lee, Gyeonggi-do, KR;

Gi-Cherl Kim, Gyeonggi-do, KR;

Sang-Yu Lee, Gyeonggi-do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
Abstract

A DC-DC converter is provided, which includes a transformer including a primary coil and a secondary coil, a boost converter connected to the primary coil of the transformer and generating a first voltage, and a flyback converter connected to the secondary coil of the transformer and generating a second voltage.


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