摘要
采用电流控制技术可以提高变换器的动态性能,本文研究了改进型不对称半桥变换器的电流控制技术;详细分析了峰值电流控制改进型不对称半桥变换器的稳定性问题,指出必须加入斜坡补偿才能使得系统稳定。文中给出了斜坡补偿电路的详细设计方法,最后通过仿真和实验证明了理论分析的正确性。
Converter s dynamic performance can be improved by current feedback control.This article introduces cnrrent control in a modified asymmetrical half-bridge dc/dc converter.The converter s stability is analyzed in detail and a slope compensation circuit is proposed.The method to determine the parameters is also given.Finally,the simulation and experimental results are shown to prove the feasibility of this circuit.
出处
《电源技术应用》
2008年第8期17-22,共6页
Power Supply Technologles and Applications
关键词
峰值电流控制
补偿电路
改进型不对称半桥
稳定性
peak current control
slope compensation
modified asymmetrical half-bridge
stability
