【学术论文】GaN FET的结构、驱动及应用综述
摘 要 :
随着电力电子装置的小型化和轻量化,宽禁带半导体器件GaN FET优于Si器件的特性使其在电力电子领域的应用受到广泛关注。在GaN FET的发展中,其结构和驱动对其安全应用至关重要。首先介绍了目前GaN FET器件的主要结构、工作原理及其产品现状;其次,总结了其驱动电路的隔离方式、常用的分立式驱动电路和集成式驱动电路的结构及原理;最后,对GaN FET在电力电子领域的应用情况进行了概述。
中文引用格式: 伍文俊,兰雪梅. GaN FET的结构、驱动及应用综述[J].电子技术应用,2020,46(1):22-29,38.
英文引用格式: Wu Wenjun,Lan Xuemei. Overview on GaN FET structure, driving and its application[J]. Application of Electronic Technique,2020,46(1):22-29,38.
1.1 耗尽型GaN FET
1.2 增强型GaN FET
1.2.1 P型栅结构
1.2.2 凹槽栅结构
1.2.3 Cascode结构
3.1 隔离方式
3.2 驱动电路的基本要求
3.3 分立式GaN FET驱动电路
3.4 集成式GaN FET驱动电路
3.4.1 LM5113集成式驱动电路
3.4.2 UCC27611集成式驱动电路
3.4.3 UCC21520集成式驱动电路
4.1 在电机驱动中的应用
文献[25]通过对采用型号为TPH3206LD的GaN FET和型号为IPL60R185P7的Si MOSFET的三相逆变器的性能比较后发现,开关频率在10 kHz~100 kHz变化时,GaN逆变器的开关损耗占总损耗的12%~55%、效率在97.8%~96.4%之间;而Si的损耗为36%~77%,10 kHz时效率只有96.9%。可见,GaN逆变器应用到电机驱动中,其性能要优于Si的,也更有潜力。
4.2 在LED驱动中的应用
4.3 其他应用场合
4.3.1 光伏逆变器
4.3.2 POL
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作者信息:
伍文俊,兰雪梅
(西安理工大学 自动化与信息工程学院,陕西 西安710048)
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