China Mechanical Engineering ›› 2010, Vol. 21 ›› Issue (8): 893-896.

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Study on Drive Motor for Axial-flow Magnetic-levitation Aritficial Heart Pump

Yang Sheng;Liu Shuqin;Guan Yong

  1. Shandong University,Jinan,250061
  • Online:2010-04-25 Published:2010-05-05
  • Supported by:
    National High-tech R&D Program of China (863 Program) (No. 2006AA02Z4D3)



  1. 山东大学,济南,250061
  • 基金资助:
    National High-tech R&D Program of China (863 Program) (No. 2006AA02Z4D3)


A structural and control method of permanent-magnet slotless brushless DC motor was introduced,which can be used for axial-flow artificial heart pump.ASIC chip ML4425 was used as the central control unit.The speed of the motor can be controlled by changing the input voltage and hence the flux and pressure of blood can also be controlled.The motor has good performance in the artificial heart pump due to the non-contact magnetic bearing. The experimental results indicate that speed of motor can be modulated and has an approximate linear relationship with the input voltage.Moreover,the motor works smoothly with low noise.

Key words: magnetic-levitation, artificial heart pump, brushless DC motor, ML4425




CLC Number: