Invention Grant
US08503196B2 Feedback circuit and control method for an isolated power converter
有权
隔离电源转换器的反馈电路和控制方法
- Patent Title: Feedback circuit and control method for an isolated power converter
- Patent Title (中): 隔离电源转换器的反馈电路和控制方法
-
Application No.: US12838988Application Date: 2010-07-19
-
Publication No.: US08503196B2Publication Date: 2013-08-06
- Inventor: Liang-Pin Tai , Tzu-Chen Lin , Cheng-Hsuan Fan
- Applicant: Liang-Pin Tai , Tzu-Chen Lin , Cheng-Hsuan Fan
- Applicant Address: TW Chupei, Hsinchu
- Assignee: Richtek Technology Corp.
- Current Assignee: Richtek Technology Corp.
- Current Assignee Address: TW Chupei, Hsinchu
- Agency: Muncy, Geissler, Olds & Lowe, PLLC
- Priority: TW98124622A 20090721
- Main IPC: H02M3/335
- IPC: H02M3/335 ; H02M1/36
Abstract:
A feedback circuit for an isolated power converter includes an opto-coupler and a reversed polarity regulator. The opto-coupler provides a current related to an output voltage of the isolated power converter. When the isolated power converter enters light load, the output voltage rises and the reversed polarity regulator reduces the current to decrease the power consumption and thus improve the light load efficiency of the isolated power converter.
Public/Granted literature
- US20110018590A1 FEEDBACK CIRCUIT AND CONTROL METHOD FOR AN ISOLATED POWER CONVERTER Public/Granted day:2011-01-27
Information query
IPC分类:
