摘要
介绍了初级电流控制半桥DC/DC变换器控制原理和方法。建立了峰值电流控制半桥变换器小信号模型,并推导了半桥变换器的传递函数,给出了斜坡补偿电路的具体设计步骤。最后以UC3846作为控制芯片,制作一台1 kW样机进行验证,实验结果证明了理论分析的正确性和可行性。
The principle and method of primary current-mode control half-bridge DC/DC converter is presented.The small signal model of peak current control in half-bridge converter is introduced,and system transfer functions of converter are deduced based on it,detailed steps of the slope compensation circuit design are given.FinaUy,a 1 kW prototype is designed based on UC3846 controller,the design process and experimental results are given.The experimental results show that the theory is correct and feasible.
作者
欧煌
肖岚
OU Huang;XIAO Lan(Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《电力电子技术》
CSCD
北大核心
2017年第3期30-32,共3页
Power Electronics
关键词
变换器
电流控制
斜坡补偿
converter
current control
slope compensation
