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
