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The Application Study of Driving Control of Stepper Motor

Author: BiShaoXin
Tutor: ZhangQing
School: Tianjin University
Course: Mechanical Engineering
Keywords: Stepper Motor Circular distributor Constant current chopping drive Micro-stepping driver
CLC: TM383.6
Type: Master's thesis
Year: 2003
Downloads: 2634
Quote: 26
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Abstract


Based on the systematic analyses of the applications and developments of step motor, the driving technique of step motor are analyzed in this paper, and upon these statements, a mathematical model of VR step motor is built. With this model, the coil current of step motor with chopping driver and the non-loaded starting frequency are simulated for the base of designing of step motor servo system.A step motor chopping driver, including controller, circular distributor, power amplifier, signal separator and circuit breaker is developed. especially the designing of the circular distributor, the adopting of the new logical device GAL, which have many advantages of high flexibility and reliability. It is shown in experiment that it has a high rise speed of coil current and a good current waveform. Overall test shows that the driver has a high performance.A micro-stepping driver for VR step motor is designed. In power drive circuit, a kind of power transistor VMOS is adopted. In designing of the micro-step circular distributor, two piece of GAL and EPROM are used. All the changes made the overall circuit has a higher running performance, fast switching time, small power dissipation and volume.

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CLC: > Industrial Technology > Electrotechnical > Motor > Micro-motor > Control of micro motor > Stepping decline of motor
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