带谐振直流环节的PWM软开关DC-DC变换器  

Soft Switch PWM DC DC Converter with Resonant DC Link

作　　者：亓迎川[1] 祁承超[1] 吴保芳[1] 卢飞星[1] 

机构地区：[1]空军雷达学院,武汉430010

出　　处：《电力电子技术》1999年第6期34-36,共3页Power Electronics

摘　　要：介绍一种控制策略简单的带谐振直流环节的软开关ＤＣＤＣ变换器实现方案，用脉宽调制信号调制高频谐振脉冲，经全桥变换，实现了功率变换的高频化，有利于ＤＣＤＣ 变换器的小型轻量化。同时，消除了功率器件开关过程引起的输出电压尖峰噪声，可用于高灵敏度接收设备直流电源的设计，最后给出了实验结果。A simple control strategy and practical circuit about soft switch DC DC converter with resonant DC link is given.High frequency resonant pulse is modulated by the PWM signal,and high frequency power transforming is completed by the full bridge transforming circuit,so it is available to reduce the volume and the weight of converter.The output voltage spike noises produced at the power components turn on and turn off are canceled,so it is suitable for designing the DC supply of the high sensitive receiving devices.Finally,the experimental results are given.

关 键 词：变换器 谐振直流环节 软开关 DC-DC变换器 

分 类 号：TN624[电子电信—电路与系统] TM761[电气工程—电力系统及自动化]