一种改进型大功率BUCK变换器分析与设计  

Analysis and Design of an Improved High Power BUCK Converter

作　　者：倪旻[1] 沈锦飞[1] 

机构地区：[1]江南大学物联网工程学院,江苏无锡214122

出　　处：《电气自动化》2014年第6期103-105,共3页Electrical Automation

摘　　要：针对当前高频感应加热电源直流斩波调功环节损耗大的缺点,研究了一种适用于大功率场合的ZCT-PWM软斩波变换器,对感应加热电源进行斩波功率控制。通过增加辅助开关管和谐振器件,实现了主开关和辅助开关的软开通和软关断。对电路工作过程进行了分析,然后给出了谐振器件的详细设计方法,并通过实验对分析过程进行了验证。In view of large loss in the DC chopper power adjustment of current HF induction heating power, this paper develops the ZCT - PWM soft chopping converter suitable to high power occasions for chopper power control of the induction heating power. An auxiliary switch tube and resonant components are added to realize soft switching of the main switch and auxiliary switch. The working process of the circuit is analyzed, a detailed design method is given for the resonant devices, and the analysis process is verified through experiment.

关 键 词：零电流转换 BUCK 感应加热 大功率 软开关 

分 类 号：TM46[电气工程—电器]