发明授权
- 专利标题： Capless regulator overshoot and undershoot regulation circuit
- 专利标题（中）： 无电压调节器过冲和下冲调节电路
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申请号： US12901868申请日： 2010-10-11
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公开(公告)号： US08436595B2公开(公告)日： 2013-05-07
- 发明人: John Wayne Simmons , Kai Zhong
- 申请人： John Wayne Simmons , Kai Zhong
- 申请人地址： JP Yokohama-shi
- 专利权人： Fujitsu Semiconductor Limited
- 当前专利权人： Fujitsu Semiconductor Limited
- 当前专利权人地址： JP Yokohama-shi
- 代理机构： Baker Botts L.L.P.
- 主分类号： G05F1/565
- IPC分类号： G05F1/565
摘要：
Systems and methods for reducing voltage undershoot and overshoot of a voltage regulator are disclosed. In one embodiment of the present disclosure, an undershoot/overshoot regulation circuit comprises a control node having a control voltage. The regulation circuit also comprises a control circuit configured to increase the control voltage in response to a load being applied to an output node of a voltage regulator and decrease the control voltage in response to the load being removed from the output node. The regulation circuit also comprises a control capacitor including a first terminal coupled to the control node and a second terminal coupled to a gate node of the voltage regulator. The control capacitor is configured to increase a gate voltage at the gate node in response to the increase of the control voltage, and decrease the gate voltage in response to the decrease of the control voltage.
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