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:
Mar. 03, 2015
Filed:
Jan. 13, 2010
En LI, Hangzhou, CN;
Yang Shi, Hangzhou, CN;
Huanyu LU, Hangzhou, CN;
Junming Zhang, Hangzhou, CN;
Yuancheng Ren, Hangzhou, CN;
En Li, Hangzhou, CN;
Yang Shi, Hangzhou, CN;
Huanyu Lu, Hangzhou, CN;
Junming Zhang, Hangzhou, CN;
Yuancheng Ren, Hangzhou, CN;
Monolithic Power Systems, Inc., San Jose, CA (US);
Abstract
The present invention provides an off time control method and switching regulator using it. The current flowing through a switch is compared with a current threshold, and the switch is turned off if the current flowing through the switch is larger than the current threshold. The off time of the switch is determined by the load. The current threshold is variable at light load to prevent generating the audible noise and improve the whole efficiency.