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Study on Aerospace Secondary Power Supply with Efficiency of 94% Based on GaN
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Xiaofeng LÜ1, Yingwu WANG2, Dejun BA  Student Member, CPSS1, Chunfei XU1, Yihe WANG1, Yuxin NIU1
Journal of Power Supply | 2026, 24(8) : 230 - 239
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Journal of Power Supply | 2026, 24(8): 230-239
• Special Power Supplies •
Study on Aerospace Secondary Power Supply with Efficiency of 94% Based on GaN
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Xiaofeng LÜ1, Yingwu WANG2, Dejun BA  Student Member, CPSS1, Chunfei XU1, Yihe WANG1, Yuxin NIU1
Affiliations
  • 1.School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310000, China
  • 2.Xi’an Microelectronics Technology Institute, Xi’an 710054, China
Published: 2026-08-30 doi: 10.13234/j.issn.2095-2805.2026.8.230
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The potential of gallium nitride (GaN) power devices in enhancing the high power density and efficiency of aerospace power systems is focused on, and a 250 W GaN aerospace secondary power supply prototype with an integrated controller and driver is designed. The high-frequency transformer winding structure is optimized by Ansys simulations to improve the output efficiency. Experimental results show that the peak output efficiency of proposed GaN aerospace power supply reached 94%, and its power density was as high as about 12 W/m2. Compared with those of the power supply of the same grade silicon device, its efficiency was 3.8% higher, and its power density was 2.7 times higher. In addition, the results of single-particle radiation experiments verified the anti-irradiation characteristics of GaN devices.

GaN power device  /  high-frequency transformer  /  aerospace power supply  /  high power density  /  single-event effect (SEE)
吕晓峰, 王英武, 巴得俊中国电源学会学生会员, 许春飞, 王弈赫, 牛雨欣. 一种基于氮化镓94%高效率宇航二次电源的研究. 电源学报, 2026 , 24 (8) : 230 -239 . DOI: 10.13234/j.issn.2095-2805.2026.8.230
Xiaofeng LÜ, Yingwu WANG, Dejun BA, Chunfei XU, Yihe WANG, Yuxin NIU. Study on Aerospace Secondary Power Supply with Efficiency of 94% Based on GaN[J]. Journal of Power Supply, 2026 , 24 (8) : 230 -239 . DOI: 10.13234/j.issn.2095-2805.2026.8.230
Appendix
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Year 2026 volume 24 Issue 8
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Article Info
doi: 10.13234/j.issn.2095-2805.2026.8.230
  • Receive Date：2024-09-11
  • Online Date：2026-10-29
  • Published：2026-08-30
Article Data
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History
  • Received：2024-09-11
  • Revised：2024-10-15
  • Accepted：2024-10-22
Affiliations
    1.School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310000, China
    2.Xi’an Microelectronics Technology Institute, Xi’an 710054, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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