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Volume 41 Issue 6
Jun.  2015
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Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(6): 1102-1107.
ZHANG Pengfei, QI Bojin, ZHENG Minxin, et al. Design of constant current source to drive analog coil of space magnetic environment[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(6): 1102-1107. doi: 10.13700/j.bh.1001-5965.2014.0403(in Chinese)
Citation: ZHANG Pengfei, QI Bojin, ZHENG Minxin, et al. Design of constant current source to drive analog coil of space magnetic environment[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(6): 1102-1107. doi: 10.13700/j.bh.1001-5965.2014.0403(in Chinese)
shu

Design of constant current source to drive analog coil of space magnetic environment

doi: 10.13700/j.bh.1001-5965.2014.0403

  • School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 03 Jul 2014
  • Publish Date: 20 Jun 2015
    Abstract
  • To reach the requirements that the space environment simulation coil's magnetic induction intensity can continuously adjust from 0 to 20 Gs, and the magnetic field stability can be better than 1%, main circuit topology structure using a voltage source in series with a current source, combined with the voltage double closed loop control and the current closed loop negative feedback control methods, achieved a stable current output, reduced the power consumption of the metal-oxide-semiconductor field-effect transistor (MOSFET), and improved the efficiency of the constant current source. The test results show that the constant current source output current ranges from 0 to 10 A, Helmholtz coil's center magnetic induction intensity can reach the design requirements of 20 Gs, the current stability is better than 0.1%, and the magnetic field stability is better than 1%.

     

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