基于脉冲序列控制技术的降压型开关电源

Buck Switching Mode Power Supply Based on Pulse-Train Control Technique Applied to a DC-DC Step-down Power Supply

在分析开关电源脉冲序列(Pulse Train,PT)控制方法的原理和工作过程的基础上,设计了一种简单实用的脉冲序列控制电路。利用PSpice对PT控制DCM Buck变换器进行了仿真研究,并通过实验验证了脉冲序列控制器的可行性和正确性,为PT控制开关电源提供了一种有效的实施方案。

Base on analyzing the principle and working process of pulse-train（PT） control technique,a simple and practical PT controller is designed.PSpice Simulation results of PT controlled buck converter in discontinuous conduction mode（DCM） are performed in this paper.Simulation and experimental results show the feasibility and correctness of the controller,which provides an effective implementation plan of PT control.