峰值电流控制中斜坡补偿电路的设计

Design of Slope Compensation in Peak Current-Mode Controlled Circuit

针对峰值电流控制中产生次谐波振荡的问题,阐述了峰值电流控制的不稳定性及原因,研究了斜坡补偿与系统稳定性的关系,给出了实际斜坡补偿电路及设计方法。

Aimed at the issue about peak current-mode controlled circuit, instability reasons of peak current control are expatiated. Relationship between slop compensation instability and system stability is studied. The practical circuit and design method of slope compensation are given.