摘要
本文提出了一种负载电流注入的开关落地降压式Cuk变换器电流型控制策略,主电路可以实现驱动方便的低输入输出纹波降压变换。采用该控制方案可以有效地提高系统的动态响应能力。本文简要介绍该开关落地降压式Cuk变换器工作原理,分析了快速动态控制工作过程和相关设计,并通过Pspice软件仿真和实验样机的方式,验证了该控制方案具有比传统峰值电流控制更为快速的动态响应能力。
A current control method with Load current injection based on Grounding type step-down Cuk converter is proposed in this paper, the main circuit can have lower ripple step-down conversion while easily driven. This control method can effectively improve the dynamic response capability of the system. This paper introduces the working principle of the step-down converter briefly and the fast dynamic control method, then verifies the control method has faster dynamic response capability than traditional current-mode control through Pspice simulation and prototype experiment.
出处
《电气技术》
2014年第1期22-25,共4页
Electrical Engineering
