基于FPGA的GaN有源箝位反激式电源  

A GaN Active Clamp Flyback Power Supply Based on FPGA

作　　者：牛雨萱 张军明[1] NIU Yu-xuan;ZHANG Jun-ming(Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学,电气工程学院,浙江杭州310027

出　　处：《电力电子技术》2020年第2期1-3,23,共4页Power Electronics

摘　　要：反激式电路在中、低功率场合应用广泛,但是单纯的反激式电路也有一些不足,例如开关管关断时存在电压尖峰。通常的解决方案是在反激式电路中加入箝位回路。结合目前有源箝位的研究进展,对有源箝位反激式电路做了整体综述与比较,也关注了目前比较热门的宽禁带氮化镓(GaN)器件在有源箝位电路中的应用。在综述的基础上,设计并制作了一台基于现场可编程门阵列(FPGA)的GaN有源箝位反激式电源,验证了所采用方案的性能。Flyback circuit has been widely used in small and medium power applications.However,simple flyback circuit has some shortcomings.The usual solution is to add a clamp circuit to the traditional flyback circuit.Active clamp flyback circuits are reviewed and compared based on the current research progress of active clamp,and the application of wide bandgap gallium nitride(GaN) devices in active clamp circuits is also concerned.A GaN active clamp flyback power supply prototype based on field programmable gate array(FPGA) is designed,and the performance of the scheme is verified.

关 键 词：电源 反激式电路 有源箝位 氮化镓器件 

分 类 号：TN86[电子电信—信息与通信工程]