| 峰值电流模式变换器自适应斜坡补偿电路设计 |
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| 引用本文： | 田锦明, 王经卓, 曹双贵, 胡全斌, 董自健, 樊纪山,. 峰值电流模式变换器自适应斜坡补偿电路设计[J]. 电子器件, 2008, 31(2): 480-483 |
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| 作者姓名： | 田锦明 王经卓 曹双贵 胡全斌 董自健 樊纪山 |
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| 作者单位： | 淮海工学院电子系,江苏,连云港,222005;淮海工学院电子系,江苏,连云港,222005;淮海工学院电子系,江苏,连云港,222005;淮海工学院电子系,江苏,连云港,222005;淮海工学院电子系,江苏,连云港,222005;淮海工学院电子系,江苏,连云港,222005 |
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| 摘 要： | 峰值电流模式变换器工作于CCM模式且D＞0.5时,存在开环不稳定性等问题,必须进行斜坡补偿.针对常规的斜坡补偿方式所存在的缺陷,设计了一种补偿量自动适应输入输出电压变化的斜坡补偿电路.利用MOS管工作于线性区的压控电阻特性,实现了在整个占空比区间内自动适应、优化的斜坡补偿,与传统的设计相比,自适应斜坡补偿对系统带载能力、瞬态响应的负面影响减至最小,改善系统性能,增加系统稳定性,是进行斜坡补偿的最佳方案.最后给出仿真结果.
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| 关 键 词： | 峰值电流模式 稳定性 自适应斜坡补偿 压控电阻 带载能力 瞬态响应 |
| 文章编号： | 1005-9490(2008)02-0480-04 |
| 修稿时间： | 2007-02-13 |
Design of Self-Adaptable Slop Compensation Circuit in Peak Current Mode Converter |
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| TIAN Jin-ming,WANG Jing-zhuo,CAO Shuang-gui,HU Quan-bin,DONG Zi-jian,FAN Ji-shan. Design of Self-Adaptable Slop Compensation Circuit in Peak Current Mode Converter[J]. Journal of Electron Devices, 2008, 31(2): 480-483 |
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| Authors: | TIAN Jin-ming WANG Jing-zhuo CAO Shuang-gui HU Quan-bin DONG Zi-jian FAN Ji-shan |
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| Affiliation: | TIAN Jin-ming,WANG Jing-zhuo,CAO Shuang-gui,HU Quan-bin,DONG Zi-jian,FAN Ji-shan(Department of Electronic Engineering,Huaihai Institute of Technology,Lianyungang Jiangsu 222005,China) |
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| Abstract: | It must be carried out slope compensation for peak current mode converter working in continued conduction mode and D>0.5,for it has the problems such as instability of open loop,etc.According to the defect of traditional slope compensation,a self-adaptable slope compensation circuit is designed,whose compensation amount varies with input and output voltage automatically.With the utilization of the voltage controlled resistor characteristics of MOS transistor,a self-adaptable and optimal slope compensation i... |
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| Keywords: | peak current mode stability self-adaptable slop compensation voltage controlled resistor output current capability transient response |
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