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:
Oct. 24, 2017
Filed:
Nov. 16, 2016
Suzhou Poweron Ic Design Co., Ltd, Jiangsu Province, P.R., CN;
Haisong Li, Jiangsu, CN;
Changshen Zhao, Jiangsu, CN;
Yangbo Yi, Jiangsu, CN;
Wenliang Liu, Jiangsu, CN;
SUZHOU POWERON IC DESIGN CO., LTD, Jiangsu Province, Suzhou, CN;
Abstract
A compensation circuit for constant output voltage is disclosed. The compensation circuit comprises a current source, a first switch, a controllable current source, a second switch, a logic NOT gate, a CV loop control module, and an input voltage detection module. The compensation circuit ensures a normal start-up, and substantially no additional power dissipation of the converter is generated at no load. Furthermore, the compensation circuit adjusts a compensation current according to at least one of a detected input voltage of the power supply converter and a working mode of the transformer, to obtain better precision of constant output voltage. The compensation circuit can be applied to occasions where extremely small standby input power dissipation or extremely high precision of constant output voltage is required.