Invention Grant
- Patent Title: Capless regulator overshoot and undershoot regulation circuit
- Patent Title (中): 无电压调节器过冲和下冲调节电路
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Application No.: US12901868Application Date: 2010-10-11
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Publication No.: US08436595B2Publication Date: 2013-05-07
- Inventor: John Wayne Simmons , Kai Zhong
- Applicant: John Wayne Simmons , Kai Zhong
- Applicant Address: JP Yokohama-shi
- Assignee: Fujitsu Semiconductor Limited
- Current Assignee: Fujitsu Semiconductor Limited
- Current Assignee Address: JP Yokohama-shi
- Agency: Baker Botts L.L.P.
- Main IPC: G05F1/565
- IPC: G05F1/565

Abstract:
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.
Public/Granted literature
- US20120086420A1 Capless Regulator Overshoot and Undershoot Regulation Circuit Public/Granted day:2012-04-12
Information query
IPC分类: