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:
Aug. 16, 2011
Filed:
Oct. 30, 2008
Ta-yung Yang, Milpitas, CA (US);
Chien-tsun Hsu, Taipei, TW;
Cheng-sung Chen, Taichung County, TW;
Ting-ta Chiang, Chiayi County, TW;
Ta-Yung Yang, Milpitas, CA (US);
Chien-Tsun Hsu, Taipei, TW;
Cheng-Sung Chen, Taichung County, TW;
Ting-Ta Chiang, Chiayi County, TW;
System General Corp., Taipei Hsien, TW;
Abstract
A switching controller for a boost power converter includes a switching-control circuit and a programmable feedback circuit. The programmable feedback circuit is coupled to an output of the boost power converter via a voltage divider. The programmable feedback circuit includes a current source coupled to a switch. On a light-load condition, a power-saving signal turns on the switch. The switch will conduct a programming current supplied by the current source toward the voltage divider. Furthermore, the voltage divider is externally adjustable for programming a determined level of an output voltage of the boost power converter on the light-load condition. Additionally the present invention increases system design flexibility to meet practical power-saving requirements without adding circuitries and increasing cost.