发明授权
US08451306B2 Reference voltage generation circuit, drive device, print head, and image forming apparatus
有权
参考电压产生电路，驱动装置，打印头和成像装置
- 专利标题： Reference voltage generation circuit, drive device, print head, and image forming apparatus
- 专利标题（中）： 参考电压产生电路，驱动装置，打印头和成像装置
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申请号： US13091601申请日： 2011-04-21
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公开(公告)号： US08451306B2公开(公告)日： 2013-05-28
- 发明人: Akira Nagumo
- 申请人： Akira Nagumo
- 申请人地址： JP Tokyo
- 专利权人： Oki Data Corporation
- 当前专利权人： Oki Data Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Kubotera & Associates LLC
- 优先权： JP2010-100209 20100423
- 主分类号： B41J2/435
- IPC分类号： B41J2/435 ; B41J2/47
摘要：
A reference voltage generation circuit includes a first current-mirror circuit including a first MOS transistor connected to a first power source and a second MOS transistor of the first conductive type connected to the first power source; a second current-mirror circuit including a third MOS transistor and a fourth MOS transistor; a first resistor connected to the first node; a first bipolar transistor having a collector connected to the first resistor, an emitter connected to a second power source, and a base connected to the first node; a second bipolar transistor having a collector connected to the second node, an emitter connected to the second power source, and a base connected to the first bipolar transistor; a fifth MOS transistor connected between the first power source and an output terminal; and a third resistor connected between the output terminal and the second power source.
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