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:
Sep. 04, 2012
Filed:
Apr. 13, 2011
Yong LI, San Jose, CA (US);
Fuqiang Shi, Cupertino, CA (US);
Xiaolin Gao, Santa Clara, CA (US);
David Nguyen, Santa Clara, CA (US);
Yong Li, San Jose, CA (US);
Fuqiang Shi, Cupertino, CA (US);
Xiaolin Gao, Santa Clara, CA (US);
David Nguyen, Santa Clara, CA (US);
iWatt Inc., Campbell, CA (US);
Abstract
A switch controller is disclosed that adaptively controls the operating frequency of a switching power converter in order to improve one-time load response and repetitive dynamic load responses. During a transition from a high load to low load condition, the switch controller clamps the operating frequency of the switching power converter at an intermediate frequency for a period of time before allowing the operating frequency to return to a frequency associated with the low load condition. The clamped frequency is higher than the frequency associated with the low load condition thereby allowing improved response to a subsequent load change to a high load condition. Thus, the system improves dynamic load response without compromising no-load power consumption.