单开关MHz高增益Zeta变换器  

Single-switch MHz High Step-up Zeta Converter

作　　者：邾玢鑫[1] 刘光辉 张耀 陈世环 黄煜 ZHU Binxin;LIU Guanghui;ZHANG Yao;CHEN Shihuan;HUANG Yu(Collage of Electrical Engineering&New Energy,China Three Gorges University,Yichang 443002,Hubei Province,China)

机构地区：[1]三峡大学电气与新能源学院,湖北省宜昌市443002

出　　处：《中国电机工程学报》2021年第18期6361-6370,共10页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51707103);智慧能源技术湖北省工程研究中心开放基金(2020ZHLY03)。

摘　　要：传统DC/DC变换器受电路寄生参数的影响升压能力受到了限制,难以在宽输入宽输出的应用场合中使用。基于Zeta变换器,文中引入一种与之相匹配的"外衣"电路,提出一种单开关高增益Zeta变换器。所提"外衣"电路不含任何有源开关,不会改变原变换器的控制和驱动电路,同时"外衣"电路的引入还可以降低开关器件的电压应力。此外,在采用氮化镓MOSFET提高变换器开关频率的基础之上,应用PCB平面集成电感技术,所提变换器功率密度得到显著提高。文中详细分析所提变换器工作原理,参数特性及平面集成电感的设计过程,并搭建一个300W的实验样机验证理论分析的正确性。Due to the influence of the parasitic parameters from the PCB board and components, the voltage step-up capacities of basic DC/DC converters are limited, which makes the basic DC/DC converters difficult to be used for some applications with a wide range of input or output voltages. Based on the Zeta converter, a single-switch high step-up coated-Zeta converter was proposed. The coat circuit does not need any active switch, which makes the driver and the control circuits of the coated-Zeta converter are identical to the basic Zeta converter. Meanwhile, compared to conventional Zeta converter, the voltage stresses on the switch devices of the coated-Zeta converter have also been decreased. Furthermore, by using PCB plane integrated inductors and gallium nitride(Ga N) MOSFET, the switching frequency and power density of the coated-Zeta converter have been improved significantly. The operation principle, performance characteristics and the design of planar integrated inductors of coated-Zeta converter have been analyzed in detail, and a 300 W experimental prototype has been built to verify the correctness of the theoretical analysis.

关 键 词：“外衣”电路 Zeta变换器 高频 高增益 集成电感 

分 类 号：TM46[电气工程—电器]