- 专利标题： Dual-capacitors-based AC line frequency low voltage DC power supply circuit
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申请号： US15622470申请日： 2017-06-14
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公开(公告)号： US10164538B1公开(公告)日： 2018-12-25
- 发明人: Chi-Keung Tang , Chiu-Sing Celement Tse , Ngai Wa Wong
- 申请人： Mosway Semiconductor Limited
- 申请人地址： CN Tsuen Wan, Hong Kong SAR
- 专利权人： Mosway Semiconductor Limited
- 当前专利权人： Mosway Semiconductor Limited
- 当前专利权人地址： CN Tsuen Wan, Hong Kong SAR
- 代理机构： Alix, Yale & Ristas, LLP
- 主分类号： H02M3/28
- IPC分类号： H02M3/28 ; H02M1/08 ; H02M3/335 ; G05F1/46
摘要：
A supply circuit includes a rectifying bridge arranged in series between two high voltage capacitors. An AC line provides an intermediate voltage to a low voltage capacitor through the two high voltage capacitors. A plurality of resistors mounted in series with the two high voltage capacitors. A voltage clamping device limits the intermediate voltage at the low voltage capacitor and a linear series regulator provides an output DC voltage.
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