Volume 36 Issue 8
Aug.  2010
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Wang Dayu, Guo Hong, Yu Kaiping, et al. FPGA-based power drive device for voice coil motor used in direct drive valve[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(8): 953-956. (in Chinese)
Citation: Wang Dayu, Guo Hong, Yu Kaiping, et al. FPGA-based power drive device for voice coil motor used in direct drive valve[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(8): 953-956. (in Chinese)

FPGA-based power drive device for voice coil motor used in direct drive valve

  • Received Date: 10 Jun 2009
  • Publish Date: 30 Aug 2010
  • As the power drive device for voice coil motor requires a controller with higher computation speed, analog control is used in traditional method. There are inherent shortcomings, such as characteristics of drift, disabilities of interfacing with digital controller directly. A field programmable gate array (FPGA)-based power drive device for a voice coil motor used in direct drive valve is presented. The functions of generating pulse width modulation (PWM) signal, A/D sampling control, current sampling and digital filter, closed-loop current control, as well as communication with other digital controller were implemented by FPGA through modular design. Simulation and experimental results suggest the efficiency of FPGA-based power drive device to achieve high performances, and it can meet the requirements of direct drive valve system. The use of FPGA can greatly simplify the system hardware structure and improve the control system performances, and easily expand function and interface with other digital controllers.

     

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