A High-frequency Compact Zero-Voltage-Transition GaN-based Single-phase Inverter

被引：0

作者：

Karkaragh, Mohammadreza Hazrati ^{[1
]}

Esteki, Morteza ^{[1
]}

Mohammadi, Mohammad Reza ^{[1
]}

Khajehoddin, S. Ali ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB, Canada

来源：

2022 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, APEC | 2022年

关键词：

D O I：

10.1109/APEC43599.2022.9773583

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a high-efficiency soft-switching GaN-based single-phase inverter composed of a full-bridge DCAC inverter and an auxiliary circuit. The auxiliary circuit incorporates two active switches and an inductor coupled with the filter inductor. The auxiliary circuit does not add any components in the main power path, and no isolated gate driver is needed. Besides, using a coupled-inductor in the auxiliary circuit reduces the voltage stress on the switches and enables the utilization of GaN switches. Moreover, a variable-timing method controls the auxiliary circuit and reduces the conduction losses in the auxiliary switches. As a result, the efficiency and power density are improved. The proposed inverter is analyzed, and experimental results of a 200kHz, 500W prototype converter are reported.

引用

页码：819 / 824

页数：6

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