Invention Grant
US08810231B2 System and method for switching voltage regulator to reduce ripple in output voltage
有权
用于切换电压调节器以减少输出电压纹波的系统和方法
- Patent Title: System and method for switching voltage regulator to reduce ripple in output voltage
- Patent Title (中): 用于切换电压调节器以减少输出电压纹波的系统和方法
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Application No.: US13205631Application Date: 2011-08-09
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Publication No.: US08810231B2Publication Date: 2014-08-19
- Inventor: Prasad Sawarkar , Srinivasa Reddy Chokka
- Applicant: Prasad Sawarkar , Srinivasa Reddy Chokka
- Applicant Address: US CA San Jose
- Assignee: LSI Corporation
- Current Assignee: LSI Corporation
- Current Assignee Address: US CA San Jose
- Agency: Mendelsohn, Drucker & Dunleavy, P.C.
- Agent Steve Mendelsohn
- Main IPC: G05F1/00
- IPC: G05F1/00 ; H02M3/156 ; H02M1/00

Abstract:
A system and method for controlling ripple in an output voltage of a switching regulator is described. In one embodiment, the method includes providing a ramp circuit to selectively charge and discharge a ramp capacitor. The ramp capacitor provides a ramp voltage. The ramp voltage is selectively added to the output voltage to generate a summation voltage. The summation voltage is compared to a reference voltage to generate a control signal. An input voltage is coupled to an LC circuit based on the control signal. The LC circuit provides the output voltage. The input voltage is selectively coupled to the LC circuit when the ramp capacitor is selectively charged.
Public/Granted literature
- US20130038311A1 SYSTEM AND METHOD FOR SWITCHING VOLTAGE REGULATOR Public/Granted day:2013-02-14
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