design of emi filter applied for high-power sar dc/dc converter

Paper number

IAC-18,C3,3,10,x42657

Author

Mr. Zhipo Ji, China, Beijing Spacecrafts, China Academy of Space Technology (CAST), China

Coauthor

Prof. Chengan Wan, China, Beijing Spacecrafts,China Academy of Space Technology (CAST)

Coauthor

Mr. Qingxiao Sun, China, Beijing Spacecrafts,China Academy of Space Technology (CAST), China

Year

2018

Abstract

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In the paper, a series of especially-designed DC/DC converters (SAR DC/DC converters ) applied for the antenna payload power supply is presented. Contraposing the function principle of the cheese antenna modules, capacitive and pulsed payload power supply is demanded for SAR DC/DC converters. The input and output currents exist in severe pulse resulting in the complex design of satellite payload power supply. For the sake of reducing input current pulses, SAR DC/DC converters are systemically designed and analyzed through the small-signal modeling, the design rule is educed for the input filter of SAR DC/DC converters. Based on the mentioned above rule, the common filter is optimized, as a result, the design rationality and availability are validated through simulative analysis and experiment validation, which results remarkably guarantee the reliability and robustness of satellite payload power supply.  

Keywords: SAR, reliability, DC/DC converters, satellite payload power supply.



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Abstract document

IAC-18,C3,3,10,x42657.brief.pdf

Manuscript document

IAC-18,C3,3,10,x42657.pdf (🔒 authorized access only).

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