发明授权
US07800352B2 Controller having comp node voltage shift cancellation for improved discontinuous conduction mode (DCM) regulator performance and related methods
有权
具有comp节点电压偏移消除的控制器，用于改善不连续导通模式（DCM）调节器的性能和相关方法
- 专利标题： Controller having comp node voltage shift cancellation for improved discontinuous conduction mode (DCM) regulator performance and related methods
- 专利标题（中）： 具有comp节点电压偏移消除的控制器，用于改善不连续导通模式（DCM）调节器的性能和相关方法
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申请号： US11879074申请日： 2007-07-16
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公开(公告)号： US07800352B2公开(公告)日： 2010-09-21
- 发明人: Weihong Qiu , Robert Isham
- 申请人： Weihong Qiu , Robert Isham
- 申请人地址： US CA Milpitas
- 专利权人： Intersil Americas Inc.
- 当前专利权人： Intersil Americas Inc.
- 当前专利权人地址： US CA Milpitas
- 代理机构： Fogg & Powers LLC
- 主分类号： G05F1/575
- IPC分类号： G05F1/575
摘要：
A modulation controller includes an error amplifier which receives a reference voltage and an output voltage (VOUT) from a switching regulator being controlled by the controller at its inputs and provides a VCOMP signal at its output, and at least one comparator, wherein a first input of the comparator is coupled to an output of the error amplifier and a second input coupled to receive a ramp signal. A VCOMP shift cancellation circuit is interposed between the first or second input of the comparator, wherein the VCOMP shift cancellation circuit improves diode conduction mode performance (DCM) of the regulator by reducing a variation in average VCOMP.
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