Design for Drive Circuit of Solid Micro-Thruster Ignition System

Abstract:

Aiming at the lack of standard design method and the shortcomings of main functions of the existing drive circuit, a “Element-level Design under Transmission Voltage Switch Theory” is set forth and a smallest circuit structure namely as drive-unit, which contains Superstratum-unit, Substratum-unit and LC-unit, is designed in this paper to achieve the necessary functions. The drive circuit of n×n ignition bridges has been got from the structure expansion formula along with the expected life estimation. The Ebers-Moll Model of transistor and the internal circuit of MOSFET were used to make a theoretical analysis and the conclusion of such analysis was verified by simulation subsequently. Actual measurement has been made and the results show that the circuit in simple structure has provided a strong loading ability and accurate output; some elements of the circuit have been heated when the circuit was working; and the response time of the circuit was of the microsecond-level.

• Periodical: Applied Mechanics and Materials (Volume 664)
• Pages: 331-335
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.664.331
• Online since: October 2014
• Authors: Yang Shen*, Zhi Hua Chen, Zhan Qiang Hou, Yao Min Chen
• Keywords: Drive-Unit, Ignition Bridge, Micro-Thruster, Reliability, Response Time, Single Event-Phenomenon, System

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