- 专利标题: ADVANCED OVERVOLTAGE PROTECTION STRATEGY FOR WIRELESS POWER TRANSFER
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申请号: US17004689申请日: 2020-08-27
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公开(公告)号: US20210091597A1公开(公告)日: 2021-03-25
- 发明人: Supriya Raveendra HEGDE , Chee Weng CHEONG
- 申请人: STMicroelectronics Asia Pacific Pte Ltd
- 申请人地址: SG Singapore
- 专利权人: STMicroelectronics Asia Pacific Pte Ltd
- 当前专利权人: STMicroelectronics Asia Pacific Pte Ltd
- 当前专利权人地址: SG Singapore
- 主分类号: H02J50/10
- IPC分类号: H02J50/10 ; H02J50/27 ; H02J50/40
摘要:
A wireless power receiving circuit includes a transistor based rectifier receiving an AC input voltage, and control logic receiving an overvoltage signal. The control logic generates control signals for controlling turn on of transistors within the transistor based rectifier based upon the overvoltage signal so as to cause the transistor based rectifier to produce a rectified output voltage from the AC input voltage. A comparator compares the rectified output voltage to a reference voltage and asserts the overvoltage signal if the rectified output voltage is greater than the reference voltage. In response to assertion of the overvoltage signal, the control logic asserts the control signals to simultaneously turn on all transistors of the transistor based rectifier.
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