A new circuit connection for airborne gravity power supply system
JIANG Jiu-Ming1,2(), AN Zhan-Feng1, SHI Lei1, MENG Qing-Kui1, JIN Jiu-Qiang1, WANG Zhi-Bo1
1. China Aero Geophysical Survey and Remote Sensing Center for Natural Resources, Beijing 100083,China 2. Key Laboratory of Airborne Geophysics and Remote Sensing Geology, Ministry of Natural and Resources,Beijing 100083,China
After analyzing the power supply system design of airborne gravity measurement, aiming at the instability of full load power on or repeated start, a new circuit connection mode based on VICOR power module is proposed to solve the above problems. In the design of aviation gravity power supply, the general circuit structure design and parameter selection refer to the technical manual of the power chip module manufacturer, and the EN port of the rectifier filter module is selected to drive the DC-DC module. However, similar faults such as full load power on difficulty or repeated startup are often encountered, which affect the stable operation of the power supply. In this paper, the BOK output of VICOR module combined with triode is used to control the PC enable port of DC-DC power supply module, which does not affect the power on of front-end rectifier filter circuit. The circuit analysis results show that compared with the EN port drive enable, when using the BOK drive, the threshold voltage lower than 2.3 V can be guaranteed at the output low level, the PC enable port can be fully blocked, and there will be no phenomena such as full load power on difficulty or repeated startup, so that the aviation gravity power supply system can work more safely and stably.
蒋久明, 安战锋, 石磊, 孟庆奎, 金久强, 王志博. 一种用于航空重力供电系统的新型电路连接方式[J]. 物探与化探, 2021, 45(6): 1455-1461.
JIANG Jiu-Ming, AN Zhan-Feng, SHI Lei, MENG Qing-Kui, JIN Jiu-Qiang, WANG Zhi-Bo. A new circuit connection for airborne gravity power supply system. Geophysical and Geochemical Exploration, 2021, 45(6): 1455-1461.
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