全数字化DC-DC变换器在电镀电源中的应用  

Study on DC-DC Converter of Electroplate Power supply Based on Digital Control

作　　者：肖永涛[1] 朱理[2] 

机构地区：[1]湖南人文科技学院,湖南类底417000 [2]湖南信息职业技术学院,湖南长沙410200

出　　处：《电源技术应用》2011年第2期31-35,共5页Power Supply Technologles and Applications

摘　　要：设计了一种用于电镀电源的全桥移相控制软开关DC/DC变换器的主电路,析了超前桥臂和滞后桥臂实现零电压开关的设计原理,使用TMS320LF2407A作为主控芯片,及IGBT作为主开关,试制了一台24kw/20kHz的样机,实现了数字移相控制及全桥变换零电压软开关,实验波形验证控制方案的正确性与有效性。This paper presents a design of the main circuit of the soft-switch DC/DC converter based on full- bridge phase-shifted control for electroplate power supply. The paper analyzes the realization of ZVS in ahead bridge and lagging bridge. At last, a digital control system using TMS320LF2407A as the main control chip is designed to achieve digital control algorithm, as well as ZVS for IGBT. The 24kW/20kHz prototype is also designed. The experimental waveforms show the validity of the control method.

关 键 词：移相控制 软开关 数字控制 电镀电源 

分 类 号：TN86[电子电信—信息与通信工程]