Invention Grant
US09112419B2 AC/DC converter with control circuit that receives rectified voltage at input detection terminal
有权
AC / DC转换器，具有在输入检测端接收整流电压的控制电路
- Patent Title: AC/DC converter with control circuit that receives rectified voltage at input detection terminal
- Patent Title (中): AC / DC转换器，具有在输入检测端接收整流电压的控制电路
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Application No.: US14328064Application Date: 2014-07-10
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Publication No.: US09112419B2Publication Date: 2015-08-18
- Inventor: Satoru Nate
- Applicant: ROHM CO., LTD.
- Applicant Address: JP
- Assignee: ROHM CO., LTD.
- Current Assignee: ROHM CO., LTD.
- Current Assignee Address: JP
- Agency: Cantor Colburn LLP
- Priority: JP2013-148014 20130716; JP2013-148015 20130716
- Main IPC: H02M3/335
- IPC: H02M3/335
Abstract:
A first rectified voltage obtained by rectifying an AC voltage is input to an input detection terminal of a control circuit. A first NMOS transistor configured as a depletion-type high-voltage element, and its drain is connected to the input detection terminal, and its gate is connected to its source. An AC voltage detection circuit detects the amplitude of the AC voltage based on a current that flows through the first NMOS transistor.
Public/Granted literature
- US20150023070A1 AC/DC CONVERTER Public/Granted day:2015-01-22
Information query
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