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:
Dec. 22, 2009
Filed:
Dec. 10, 2007
Steven Huynh, Santa Clara, CA (US);
Mingliang Chen, Seterrett, AL (US);
Chuan Xiao, ShangHai, CN;
Mingfan Yu, Shanghai, CN;
Steven Huynh, Santa Clara, CA (US);
Mingliang Chen, Seterrett, AL (US);
Chuan Xiao, ShangHai, CN;
Mingfan Yu, Shanghai, CN;
Active-Semi, Inc., , VG;
Abstract
A lower-cost and more precise control methodology of regulating the output voltage of a flyback converter from the primary side is provided, which works accurately in either continuous voltage mode (CCM) and discontinuous mode (DCM), and can be applied to most small, medium and high power applications such cell phone chargers, power management in desktop computers and networking equipment, and, generally, to a wide spectrum of power management applications. Two highly integrated semiconductor chips based on this control methodology are also described that require very few components to build a constant voltage flyback converter.