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DSP (digital signal processor)-based stepper motor control system

A stepping motor and control system technology, applied in the control system, motor generator control, electrical components, etc., can solve the relatively large output torque ripple of stepping motors, poor chip fast and high-precision processing capabilities, and system scalability Poor performance and other problems, to achieve the effect of scalable performance enhancement, increased real-time performance and precision, and accurate speed

Inactive Publication Date: 2015-12-02
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the core of the control system of the stepper motor mostly uses a single-chip microcomputer, and the display module often uses a digital tube or LCD, which leads to more complex peripheral circuits of the system, poor fast and high-precision processing capabilities of the chip, inaccurate speed measurement, and the output of the stepper motor. Torque ripple is relatively large, and the system scalability is poor, etc.

Method used

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  • DSP (digital signal processor)-based stepper motor control system
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  • DSP (digital signal processor)-based stepper motor control system

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment: figure 1 It is a structural schematic diagram of a DSP-based stepping motor control system provided by the present invention. refer to figure 1 As shown, the system includes DSP control module 1, sound and light alarm module 2, current detection module 3, touch screen display module 4, motor drive module 5, two-phase four-wire stepping motor 6, speed measurement module 7, power supply module 8, Wherein the DSP control module 1 is connected with the power supply module 8, the motor drive module 5, the current detection module 3, the speed measuring module 7, the touch screen display module 4, and the sound and light alarm module respectively; the power supply module 8 is respectively connected with the motor drive module 5, Touch screen display module 4, sound and light alarm module 2, speed measurement module connection 7; Described motor drive module...

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Abstract

The invention discloses a DSP (digital signal processor)-based stepper motor control system. The DSP-based stepper motor control system comprises a DSP control module, a power supply module, a motor driving module, a current detection module, a speed measurement module, a touch screen display module, an alarming module and a two-phase four-wire-system stepper motor. The DSP control module is used ,as a control center, to mainly generate the forth PWM signals and control the rotation speed and rotation direction of the stepper motor; the current detection module is used for detecting current flowing by a motor driving chip, the speed measurement module is used for detecting the rotation speed and rotation direction of the stepper motor and displaying the detected rotation speed and rotation direction of the stepper motor by virtue of touch screen, and a touch key is set by virtue of the touch screen module; the acoustic-optical alarming module is mainly used for receiving a signal from the DSP and issuing an alarm when the current flowing by the motor driving chip and detected by the current detection module exceeds a rated range. By adopting the system, the peripheral circuit is simplified, so that the stepper motor is high in response speed, high in precision, small in output torque pulse, more accurate in speed measurement; moreover, the expandability of the system is greatly improved.

Description

technical field [0001] The invention belongs to the field of motor control systems, in particular to a DSP-based stepping motor control system. Background technique [0002] A stepper motor is a control element that converts electrical pulse signals into angular displacement or linear displacement. The stepper motor has high position positioning and speed control precision, sensitive action, open-loop control positioning does not rely on sensors, high torque, high reliability, and high power at medium and low speeds. With the rapid development of electronic technology, stepping motors Stepper motors are widely used in CNC machine tools, computing devices, automatic recorders, plotters, industrial robots, non-destructive testing and other systems and devices, and the stepper motor control system determines the performance of stepper motors to a large extent. With the development of computer technology and microelectronics, the demand for stepper motors is gradually increasin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P8/12H02P8/18
Inventor 朱龙李悦孙一迪季玲宇葛礼嘉
Owner CHINA UNIV OF MINING & TECH
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