发明授权
- 专利标题： Power supply circuit
- 专利标题（中）： 电源电路
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申请号： US10390284申请日： 2003-03-17
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公开(公告)号： US06894469B2公开(公告)日： 2005-05-17
- 发明人: Kenichi Nakajima , Ikuo Osawa
- 申请人： Kenichi Nakajima , Ikuo Osawa
- 申请人地址： JP Osaka
- 专利权人： Sanyo Electric Co., Ltd.
- 当前专利权人： Sanyo Electric Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： Fish & Richardson P.C.
- 优先权： JP2002-078432 20020320
- 主分类号： G05F1/567
- IPC分类号： G05F1/567 ; G05F1/46 ; G05F3/22 ; G05F1/44
摘要：
The power supply circuit of this invention includes a constant voltage element which generates an output voltage insensitive to change in ambient temperature, a power supply transistor, to a base of which the output voltage of the constant voltage element is applied and from an emitter of which a power supply voltage is provided, a load connected to an emitter of the power supply transistor and a differential amplifier to one input terminal of which an emitter voltage of the power supply transistor is applied and to the other input terminal of which a voltage corresponding to the output voltage of the constant voltage element is applied, and a voltage corresponding to an output voltage of which is applied to the base of the power supply transistor.
公开/授权文献
- US20040012377A1 Power supply circuit 公开/授权日：2004-01-22
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