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:
Jan. 24, 2017
Filed:
Jul. 10, 2015
Chengdu Monolithic Power Systems Co., Ltd., Chengdu, CN;
Li Xu, Chengdu, CN;
CHENGDU MONOLITHIC POWER SYSTEMS CO., LTD., Chengdu, CN;
Abstract
A control circuit for switching converter has a chopping amplifier, a sample-hold circuit, a first comparator, an oscillator and a logic circuit. The chopping amplifier generates an amplified error signal based on a reference signal and a feedback signal. The sample-hold circuit generates a sample-hold signal based on the amplified error signal. The first comparator generates a first logic signal based on a comparison result between the sample-hold signal and a current sensing signal representing a current flowing through a power switch in the switching converter. The oscillator generates a clock signal. The logic circuit generates a control signal based on the first logic signal and the clock signal, the control signal is used to control the power switch.