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.:

US 6950318 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 27, 2005

Filed:

Apr. 15, 2004
Applicants:

Jim H. Liang, Taipei, TW;

Kuo-chien Huang, Taipei, TW;

Kun-shan Pai, Taipei, TW;

Po-chueh Wang, Taipei, TW;

Inventors:

Jim H. Liang, Taipei, TW;

Kuo-Chien Huang, Taipei, TW;

Kun-Shan Pai, Taipei, TW;

Po-Chueh Wang, Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M003/335 ;
U.S. Cl.
CPC ...
Abstract

The present invention is to provide a flyback converter by utilizing harmonic effect generated by a transformer thereof, after transferring electric energy in the transformer in a boundary mode, through cooperating with a simple control circuit to draw the charges stored in a main switch thereof out and enable the main switch to perform a zero voltage switch under a variety of loads in the boundary mode, which not only greatly reduces switch loss thereof, but also effectively limits an operating frequency of the main switch in a predetermined range to greatly decrease peak value of voltage caused by inductance leakage and have the advantages of high efficiency, high switching frequency and low noise without increasing the manufacturing cost.


Find Patent Forward Citations

Liang, Jim. (2005). Flyback converter for performing a zero voltage switch in boundary mode (U.S. Patent No. 6950318). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6950318

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