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V2C控制Buck变换器稳定性分析

, PP. 88-95

Keywords: Buck变换器,VC控制,V控制,峰值电流控制,稳定性

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Abstract:

在对比分析峰值电流控制、V2控制和V2C控制Buck变换器工作原理的基础上,揭示了V2C控制本质上是一种峰值控制技术,并指出峰值电流控制和V2控制都是V2C控制的特例。分别在时域和频域下详细分析了工作于连续导电模式(CCM)的V2C控制Buck变换器的稳定性问题。与峰值电流控制类似,可以通过采用斜坡补偿法解决占空比D>0.5时工作于CCM的V2C控制Buck变换器存在的次谐波振荡问题。仿真和实验研究结果验证了理论分析的正确性。

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