发明授权
- 专利标题： Voltage supply circuit
- 专利标题（中）： 电源电路
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申请号： US11979609申请日： 2007-11-06
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公开(公告)号： US07855537B2公开(公告)日： 2010-12-21
- 发明人: Hiroki Aizawa
- 申请人： Hiroki Aizawa
- 申请人地址： JP Kawasaki
- 专利权人： NEC Electronics Corporation
- 当前专利权人： NEC Electronics Corporation
- 当前专利权人地址： JP Kawasaki
- 代理机构： McGinn IP Law Group, PLLC
- 优先权： JP2006-301301 20061107
- 主分类号： G05F1/573
- IPC分类号： G05F1/573
摘要：
A voltage supply circuit includes an output transistor causing a first current to flow to an output terminal of the voltage supply circuit based on a control voltage applied from an error amplifier to a control terminal of the output transistor; and an overcurrent protection circuit including a reference transistor causing a second current to flow to the output terminal, the second current having an amount corresponding to an amount of the first current, the overcurrent protection circuit regulating a level of the control voltage based on comparison between a detection voltage caused based on the second current and a reference voltage.
公开/授权文献
- US20080106245A1 Voltage supply circuit 公开/授权日：2008-05-08
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