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峰值电流控制模式中斜坡补偿的分析
消耗积分:5 |
格式:rar |
大小:161 |
2009-08-13
孙成红
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本文介绍了电流控制型开关电源中峰值电流控制模式的原理及优点，指出了功率管的占空比大于50%时必须进行斜坡补偿，否则电路不能稳定工作。分析了斜坡补偿的基本原理和设计问题，给出了补偿电路。
关键词：峰值电流控制模式误差电压 采样电压 斜坡补偿
Abstract：The paper introduces the principle and the merit of the peak current control in the monolithic current-mode switching regulator and points out that it need slop compensation when the of the MOSFET exceed 50%,otherwise the circute can’t work steadily. The basic principle and the design question of slop compensation are analysed and the compensation circute is given.
Key words: peak current control errors voltage sense voltages slop compensation
关键词：峰值电流控制模式误差电压 采样电压 斜坡补偿
Abstract：The paper introduces the principle and the merit of the peak current control in the monolithic current-mode switching regulator and points out that it need slop compensation when the of the MOSFET exceed 50%,otherwise the circute can’t work steadily. The basic principle and the design question of slop compensation are analysed and the compensation circute is given.
Key words: peak current control errors voltage sense voltages slop compensation
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