一种新型数字控制全桥DC/DC变换器的设计  

The Design of a Novel Digital Control Full-bridge DC/DC Converter

作　　者：仇广钰[1] 刘星桥[1] 周丽[1] 张颖[1] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《电测与仪表》2011年第3期71-74,共4页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(60874014)

摘　　要：传统的模拟控制DC/DC变换器,其控制方法单一,硬件电路结构复杂,因此极大地制约了电源效率的提高和电源硬件成本的缩减。本文提出了一种电源数字化控制方案,采用了一种先进的电路拓扑并结合ARM处理器设计了一种全数字控制方法。该方案可以有效地减小电源的体积,降低电源的成本,提高电源的效率。本文的零电压零电流变换器拓扑结构合理,参数设计正确,与预想的理论分析吻合,能够在较大的负载范围内实现超前桥臂的零电压开关和滞后桥臂的零电流开关。Traditional analog-controlled DC/DC converter can only employ easy control method and always has complicated hardware structure.It＇s extremely unfavorable in improving efficiency and reducing the cost of hardware.In this paper,a new full digital control method has been proposed.This method employed an advanced main circuit topology combining with an ARM MCU,it can reduce power supply＇s volume and cost,improve its efficiency effectively.The Topology of main circuit was reasonable,and the design of parameters was right.All the results were consistent well with theory analysis.The power supply can realize leading leg＇s ZVS and lagging leg＇s ZCS in a big load range.

关 键 词：全桥变换器 DC/DC ZVZCS 数字控制 

分 类 号：TM133[电气工程—电工理论与新技术]