- 专利标题: GAIN TUNING FOR SYNCHRONOUS RECTIFIERS
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申请号: US17081513申请日: 2020-10-27
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公开(公告)号: US20220131474A1公开(公告)日: 2022-04-28
- 发明人: Andrey Malinin , Renato Bessegato , Yong Siang Teo
- 申请人: Infineon Technologies Austria AG
- 申请人地址: AT Villach
- 专利权人: Infineon Technologies Austria AG
- 当前专利权人: Infineon Technologies Austria AG
- 当前专利权人地址: AT Villach
- 主分类号: H02M3/335
- IPC分类号: H02M3/335 ; G05F1/56 ; G01R19/165 ; H03K5/24 ; H03G1/00 ; G06G7/186 ; H03M1/38
摘要:
A synchronous rectifier includes: an integrator configured to integrate a voltage across a secondary side winding of a transformer over an integral period having an expected zero integral value; a first comparator configured to detect an end of a demagnetization phase of the secondary side winding based on diode detection; and a digital circuit configured to adjust a channel gain of the synchronous rectifier based on an integration error at the end of the integral period, the integration error corresponding to the difference between the integrated voltage at the end of the integral period and the expected zero integral. Corresponding methods of gain tuning and a power converter are also described.
公开/授权文献
- US11594977B2 Gain tuning for synchronous rectifiers 公开/授权日:2023-02-28