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:
Jun. 28, 2016
Filed:
Nov. 09, 2012
Csmc Technologies Fab2 Co., Ltd., Jiangsu, CN;
Guoding Dai, Jiangsu, CN;
Xiaohui Ma, Jiangsu, CN;
ChaoYao Xue, Jiangsu, CN;
Jian Ou, Jiangsu, CN;
Jing Lu, Jiangsu, CN;
CSMC TECHNOLOGIES FAB2 CO., LTD., Jiangsu, CN;
Abstract
An output over-voltage protection circuit for power factor correction, which includes a chip external compensation network, a chip external resistor divider network, a static over-voltage detection circuit, a dynamic over-voltage detection circuit and a compare circuit; The chip external compensation network is connected between the chip external resistor divider network and the dynamic over-voltage detection circuit, the chip external compensation network converts the dynamic over-voltage signal conversion to the dynamic current signal and conveys it to the dynamic over-voltage detection circuit, the dynamic over-voltage detection circuit detects the dynamic current signal and ultimately produces the dynamic over-voltage signal (DYOVP); The dynamic over-voltage signal (DYOVP) is inputted into the compare circuit, which converts the dynamic over-voltage signal (DYOVP) into a voltage compared with a reference voltage and outputs a over-voltage control signal (OVP), so as to achieve a dynamic over-voltage protection function.