一种用于航空重力供电系统的新型电路连接方式

doi:10.11720/wtyht.2021.0043

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Abstract

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.

Key words： airborne gravity enable full load power up Vicor module

Received: 21 January 2021 Published: 21 December 2021

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	Articles by authors
	Jiu-Ming JIANG
	Zhan-Feng AN
	Lei SHI
	Qing-Kui MENG
	Jiu-Qiang JIN
	Zhi-Bo WANG

Cite this article:

Jiu-Ming JIANG,Zhan-Feng AN,Lei SHI, et al. A new circuit connection for airborne gravity power supply system[J]. Geophysical and Geochemical Exploration, 2021, 45(6): 1455-1461.

URL:

https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.0043 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I6/1455

Circuit block diagram of airborne gravity power supply system

Rectifier and filter circuit of FARM2T11

Internal principle block diagram of FARM2T11

Power on and power off sequence diagram of FARM2T11

EN drives the enabling terminal PC of DC-DC modules recommended by Vicor's manuals

The EN port of FARM2T11 drives the PC port of DC-DC module

B-OK port of FARM2T11 drives PC ports of DC-DC modules

Power on (a) and Power off (b) diagram of EN and BOK ports of FARM2T11

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