高输入电压三电平零电压软开关DC/DC变换电路  

High Input Voltage Three-Level Zero-voltage Soft-switching DC/DC Converter

作　　者：王正仕[1] 

机构地区：[1]浙江大学

出　　处：《电力电子技术》2001年第2期21-23,共3页Power Electronics

摘　　要：分析了三电平DC/DC变换电路的工作原理 :输入直流母线电压通过电容分压 ,功率开关承受的电压仅为母线电压的一半 ;采用移相控制 ,可实现零电压开通。给出了 1kW的实验结果 ,半载时效率为 95 %。In this paper,a three level DC/DC converter is presented.The converter is especially well suited for high input voltage.There is only a half of the input voltage imposes on each of the four switches,because two legs of the converter are connected in series with each other across the dc input source (dc bus). Each switch can realize ZVS with phase shift technique.A theoretical analysis and experimental result are given on 1kW example.The measured maximum efficiency is 95.1%.

关 键 词：软开关 DC/DC变换器 DC/DC变换电路 移相控制 零电压 

分 类 号：TN624[电子电信—电路与系统]