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星载多路电源优化设计
电子技术应用
许娟,王正之
上海航天电子技术研究所
摘要:星载电源因其特殊使用环境,有效的散热方式不多,因此对电源的功率密度和效率要求越来越高。又因其对元器件的严苛要求,可选择的电路和元器件相应受限。主要介绍了在原有星载多路电源设计的基础上,在可选择元器件范围内,优化其中反激电源电路设计,分析其工作原理,设计一款新型星载多路电源。最后用新设计的多路电源与原多路电源效率进行比较,验证了电源优化设计的可行性。
中图分类号:TN86 文献标志码:A DOI: 10.16157/j.issn.0258-7998.245886
中文引用格式:许娟,王正之. 星载多路电源优化设计[J]. 电子技术应用,2025,51(3):111-114.
英文引用格式:Xu Juan,Wang Zhengzhi. Optimized design of satellite-borne multiple power supply[J]. Application of Electronic Technique,2025,51(3):111-114.
Optimized design of satellite-borne multiple power supply
Xu Juan,Wang Zhengzhi
Shanghai Institute of Aerospace Electronics Technology
Abstract:Because of the special environment of the satellite-borne power supply, there are not many effective ways to dissipate heat, so the power density and efficiency of the power supply are more demanding. And because of its strict requirements for components, the choice of circuits and components are also correspondingly limited. This paper mainly introduces the design of flyback converter optimized on the basis of the original multi-channel power supply, and analyzes its working principle, then designs a new satellite-borne multiple power supply. Finally, the efficiency of the newly designed multiplex power supply is compared with that of the original multiplex power supply, and the feasibility of the optimized power supply design is verified.
Key words :satellite-borne;multiple power supply;flyback;efficient

引言

随着相控阵天线在卫星有效载荷中的应用,星载电源为了适应相控阵天线的要求,必须输出功率大、体积小、效率高[1]。星载多路电源中输出功率大的电源采用正激电路拓扑[2-3],效率可以做到90%以上。输出功率小的电源则采用反激拓扑,反激变换器电路结构简单、所用元器件少,因功率小只采用普通的RCD箝位和二极管整流方式。现该多路电源其中一路反激电源输出电流需求增加,副边整流二极管消耗了相当多的能量,不利于整机效率提升。本文介绍了一种在原有多路电源设计基础上,只改动较少器件,来完成新多路电源设计并能提高电源效率的方法,满足新多路电源使用需求。


本文详细内容请下载:

http://www.chinaaet.com/resource/share/2000006369


作者信息:

许娟,王正之

(上海航天电子技术研究所,上海 201109)


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