| 基于GaN器件LLC谐振变换器的平面变压器优化设计 |
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| 引用本文： | 谭琳琳,王康平,宇文甸,杨旭.基于GaN器件LLC谐振变换器的平面变压器优化设计[J].电源学报,2016,14(4):96-102. |
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| 作者姓名： | 谭琳琳 王康平 宇文甸 杨旭 |
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| 作者单位： | 西安交通大学电气工程学院, 西安 710049;西安交通大学电气工程学院, 西安 710049;西安交通大学电气工程学院, 西安 710049;西安交通大学电气工程学院, 西安 710049 |
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| 摘 要： | 现代开关电源的发展呈现高效率和高功率密度的趋势。基于GaN器件LLC谐振变换器,采用同步整流技术,通过平面变压器的设计和结构优化大大减小了变换器的高度和体积,同时也减少损耗,提高了系统的功率密度和效率。搭建了1 MHz/120 W同步整流LLC谐振变换器硬件电路,对设计进行了实验验证。样机的功率密度达到了262 W/in~3,最高效率达到了94.9%。
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| 关 键 词： | LLC谐振变换器 GaN器件 同步整流 平面变压器 |
| 收稿时间： | 5/1/2016 12:00:00 AM |
| 修稿时间： | 7/5/2016 12:00:00 AM |
Optimization Design of Planar Transformer in GaN-based LLC Resonant Converter |
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| TAN Linlin,WANG Kangping,YU Wendian and YANG Xu.Optimization Design of Planar Transformer in GaN-based LLC Resonant Converter[J].Journal of power supply,2016,14(4):96-102. |
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| Authors: | TAN Linlin WANG Kangping YU Wendian and YANG Xu |
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| Affiliation: | School of Electrical Engineering, Xi''an Jiaotong University, Xi''an 710049, China;School of Electrical Engineering, Xi''an Jiaotong University, Xi''an 710049, China;School of Electrical Engineering, Xi''an Jiaotong University, Xi''an 710049, China;School of Electrical Engineering, Xi''an Jiaotong University, Xi''an 710049, China |
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| Abstract: | High efficiency and high power density is the development trend in modern switching power supply. In this paper, an enhancement-mode Gallium Nitride(eGaN) is designed based LLC resonant converter with synchronous rectifica-tionts decreased the height, volume and loss of converter through the design and structural optimization of planar transformer, which improved the power density and efficiency of the system. A LLC resonant converter of 1 MHz with synchronous rectification prototype rated at 120 W is built to verify the design. The power density of the design is 262 W/in3 and the highest efficiency ofthe prototype achieves 94.9%. |
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| Keywords: | LLC resonant converter GaN transistor Synchronous rectification planar transformer |
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