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. 13, 2016
Filed:
Dec. 30, 2014
Chengdu Monolithic Power Systems Co., Ltd., Chengdu, CN;
Lijie Jiang, Hangzhou, CN;
Chia-Hsin Chang, Santa Clara, CA (US);
Wenbin Lu, Hangzhou, CN;
Wangmiao Hu, Hangzhou, CN;
Qian Ouyang, Hangzhou, CN;
CHENGDU MONOLITHIC POWER SYSTEMS CO., LTD., Chengdu, CN;
Abstract
A control method used in a constant on-time switching converter includes: judging whether the switching converter enters into an ultrasonic mode; turning ON the low-side switch to discharge the output capacitor when the switching converter enters into the ultrasonic mode; generating an additional slope compensation signal during the discharge of the output capacitor; comparing a feedback signal indicative of the output voltage of the switching circuit with the sum of a reference voltage and the additional slope compensation signal; turning OFF the low-side switch and turning ON the high-side switch when the feedback signal decreases to reach the sum of the reference voltage and the additional slope compensation signal.