发明授权
- 专利标题： Reference voltage generating circuit and power supply device using the same
- 专利标题（中）： 参考电压发生电路及其使用的电源装置
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申请号： US11915440申请日： 2007-03-20
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公开(公告)号： US07982531B2公开(公告)日： 2011-07-19
- 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
- 代理机构： Cooper & Dunham LLP
- 优先权： JP2006-096672 20060331; JP2006-301070 20061107
- 国际申请： PCT/JP2007/056534 WO 20070320
- 国际公布： WO2007/116780 WO 20071018
- 主分类号： G05F3/24
- IPC分类号： G05F3/24 ; H01L27/088
摘要：
A reference voltage generating circuit for generating a reference voltage includes MOSFETs connected to each other. 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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