Invention Grant
US07656685B2 Control method and circuit with indirect input voltage detection by switching current slope detection
有权
通过开关电流斜率检测进行间接输入电压检测的控制方法和电路
- Patent Title: Control method and circuit with indirect input voltage detection by switching current slope detection
- Patent Title (中): 通过开关电流斜率检测进行间接输入电压检测的控制方法和电路
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Application No.: US11652571Application Date: 2007-01-12
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Publication No.: US07656685B2Publication Date: 2010-02-02
- Inventor: Ta-Yung Yang , Chien-Yuan Lin
- Applicant: Ta-Yung Yang , Chien-Yuan Lin
- Applicant Address: TW Taipei Hsien
- Assignee: System General Corp.
- Current Assignee: System General Corp.
- Current Assignee Address: TW Taipei Hsien
- Agency: Rosenberg, Klein & Lee
- Main IPC: H02M3/335
- IPC: H02M3/335
Abstract:
The present invention provides a method and circuit for detecting an input voltage of a power converter. It includes a current sense circuit for generating a current signal in response to a switching current of an inductive device. A detection circuit is coupled to sense the current signal for generating a slope signal in response to a slope of the current signal. A signal generation circuit is further developed to generate an input-voltage signal in accordance with the slope signal. The level of the input-voltage signal is corrected to the input voltage of the power converter.
Public/Granted literature
- US20080169802A1 Method and circuit for detecting input voltage of power converter Public/Granted day:2008-07-17
Information query
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