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:
Jan. 04, 2005
Filed:
Feb. 06, 2003
Applicants:
Chin-wen Chou, Hsin-Tien, TW;
Eddie Cheng, Hsin-Tien, TW;
Bart Chin-biau Chung, Hsin-Tien, TW;
Inventors:
Assignee:
Zippy Technology Corp., Taipei Hsien, TW;
Primary Examiner:
Int. Cl.
CPC ...
H02M 700 ;
U.S. Cl.
CPC ...
Abstract
The present invention discloses to a multi-period cycle-alternative switching mode power supply control device, comprising: a power transfer control unit, a dimming bias control, a burst timing control, and a steering logic; wherein said device has a variable multi-period control cycle to effectively control certain power transfer elements of specific nature and assure those elements and the loading at the rear end can operate more efficiently in a reliable range of specific nature.