浅谈基于UC3875的电力操作电源的设计  

Research of the Power Supply Design based on UC3875

作　　者：赵小灵 

机构地区：[1]广西机电工程学校,广西南宁530001

出　　处：《装备制造技术》2008年第12期194-195,共2页Equipment Manufacturing Technology

摘　　要：以零电压零电流软开关(ZVZCS)全桥变换电路为基础,整流电路采用倍流整流的工作方式,采用UC3875芯片为控制核心,设计了一套电力操作电源系统。该系统所有功率器件均工作在软开关状态,并且有较大的软开关工作范围,获得了满意的结果。A power operating supply module has been developed, the power stage is based on employing a phase-shift control full bridge ZVZCS converter, and a current-doublers rectifier is used at the transformer secondary side, and UC3875 chip used as the main controlling. All the power semiconductors in the converter are operated at a wide range soft-switching condition. The voltage and current dual dose-loop feedback system is adopted and the peak-value current control mode is used, and the result was satisfied.

关 键 词：零电压零电流软开关 倍流整流 UC3875 UC3702 

分 类 号：TM56[电气工程—电器]