发明授权
- 专利标题： Voltage generation circuit
- 专利标题（中）： 电压发生电路
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申请号： US13200214申请日： 2011-09-21
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公开(公告)号： US08653803B2公开(公告)日： 2014-02-18
- 发明人: Norihiro Kawagishi , Nobuaki Tsuji , Toshio Maejima
- 申请人： Norihiro Kawagishi , Nobuaki Tsuji , Toshio Maejima
- 申请人地址： JP Hamamatsu-shi
- 专利权人： Yamaha Corporation
- 当前专利权人： Yamaha Corporation
- 当前专利权人地址： JP Hamamatsu-shi
- 代理机构： Pillsbury Winthrop Shaw Pittman LLP
- 优先权： JP2010-211703 20100922
- 主分类号： G05F1/565
- IPC分类号： G05F1/565 ; G05F1/618
摘要：
A voltage generation circuit includes a voltage detection circuit that generates a detection voltage according to an output voltage, a reference voltage generation circuit that generates a reference voltage which changes periodically, a comparison circuit that generates a control signal according to a result of a comparison between the detection voltage and the reference voltage, wherein control pulses each having a pulse width according to the detection voltage are sequentially appeared in the control signal, and a driving pulse generation circuit that generates a driving pulse corresponding to the control pulse and supplies the generated driving pulse to a transistor connected to a DC power source when the pulse width of the control pulse exceeds a predetermined width, and stops generating the driving pulse when the pulse width of the control pulse becomes smaller than the predetermined width.
公开/授权文献
- US20120068675A1 Voltage generation circuit 公开/授权日：2012-03-22
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