Invention Grant
US08305776B2 Systems and methods for primary-side regulation in off-line switching-mode flyback power conversion system
有权
离线开关模式反激式电源转换系统中初级侧调节的系统和方法
- Patent Title: Systems and methods for primary-side regulation in off-line switching-mode flyback power conversion system
- Patent Title (中): 离线开关模式反激式电源转换系统中初级侧调节的系统和方法
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Application No.: US12502866Application Date: 2009-07-14
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Publication No.: US08305776B2Publication Date: 2012-11-06
- Inventor: Lieyi Fang
- Applicant: Lieyi Fang
- Applicant Address: CN Shanghai
- Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
- Current Assignee: On-Bright Electronics (Shanghai) Co., Ltd.
- Current Assignee Address: CN Shanghai
- Agency: Jones Day
- Main IPC: H02M3/335
- IPC: H02M3/335

Abstract:
Switching-mode power conversion system and method thereof. The system includes a primary winding configured to receive an input voltage, an a secondary winding coupled to the primary winding and configured to, with one or more first components, generate, at an output terminal, an output voltage and an output current. Additionally, the system includes an auxiliary winding coupled to the secondary winding and configured to, with one or more second components, generate, at a first terminal, a detected voltage. Moreover, the system includes an error amplifier configured to receive the detected voltage and a first reference voltage and generate an amplified voltage based on at least information associated with a difference between the detected voltage and the first reference voltage. Also, the system includes a compensation component configured to receive the amplified voltage and generate a second reference voltage based on at least information associated with the amplified voltage.
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