发明申请
US20090146731A1 REFERENCE VOLTAGE GENERATING CIRCUIT AND POWER SUPPLY DEVICE USING THE SAME
有权
参考电压发生电路和使用该电路的电源装置
- 专利标题： REFERENCE VOLTAGE GENERATING CIRCUIT AND POWER SUPPLY DEVICE USING THE SAME
- 专利标题（中）： 参考电压发生电路和使用该电路的电源装置
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申请号： US11915440申请日： 2007-03-20
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公开(公告)号： US20090146731A1公开(公告)日： 2009-06-11
- 发明人: Masaaki Yoshida , Hiroaki Nakanishi
- 申请人： Masaaki Yoshida , Hiroaki Nakanishi
- 申请人地址： JP TOKYO
- 专利权人： RICOH COMPANY, LTD
- 当前专利权人： RICOH COMPANY, LTD
- 当前专利权人地址： JP TOKYO
- 优先权： JP2006-096672 20060331; JP2006-301070 20061107
- 国际申请： PCT/JP2007/056534 WO 20070320
- 主分类号： G05F1/56
- IPC分类号： G05F1/56
摘要：
A disclosed reference voltage generating circuit for generating a reference voltage includes MOSFETs connected in series or in parallel. At least one of the MOSFETs includes a control gate and a floating gate that is made hole-rich or discharged by ultraviolet irradiation, and the reference voltage generating circuit is configured to output the difference between threshold voltages of a pair of the MOSFETs as the reference voltage.
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