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Device and method for driving and controlling stepper motor

A stepper motor and motor control technology, applied in the direction of motor generator control, control system, electrical components, etc., can solve the problems of increasing system price and system complexity

Active Publication Date: 2011-04-06
北京和利康源医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to realize this acceleration and deceleration curve, a large number of calculations are required. If a dynamic algorithm is used, a high-performance calculation processing chip and a high-speed data interface such as PCI (Peripheral Component Interconnection Standard) interface are required. There are higher requirements on the upper control machine, such as the industrial control board, which will increase the system price and the complexity of the system

Method used

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  • Device and method for driving and controlling stepper motor
  • Device and method for driving and controlling stepper motor
  • Device and method for driving and controlling stepper motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Embodiment 1, a drive control device for a stepper motor, such as figure 2 shown, including:

[0067] The upper layer control machine is used to generate motor control commands and set configuration data;

[0068] The processing module is used to receive the motor control command and configuration data, and when the motor control command instructs to drive the motor, output a stepper motor pulse signal according to the configuration data to complete the motor control.

[0069] The interface module, in which the peripheral switching value and motor drive circuit for specific applications is built, is connected with the peripheral equipment, and is used to output the driving signal to the external stepping motor driver according to the pulse signal of the stepping motor to complete the stepping motor. drive control.

[0070] The upper layer control machine can also be further used to generate an IO operation command; the IO operation command includes: IO multiplexing e...

Embodiment 2

[0155] Embodiment 2, a driving control method of a stepping motor, comprising:

[0156] Generate motor control commands, set configuration data;

[0157] When the motor control command indicates to drive the motor, output a stepper motor pulse signal according to the configuration data;

[0158] Outputting a driving signal to an external stepping motor driver according to the pulse signal of the stepping motor to complete the driving control of the stepping motor.

[0159] The method may further include generating an IO operation command; performing IO channel input upload and output control, reading and writing configuration data, and switching control etc. according to the IO operation command; the IO operation command includes: IO multiplexing enable , Interrupt enable.

[0160] In this embodiment, several (possibly but not limited to 16) frequency levels (0-15) are pre-set. When the stepper motor needs to be started, its frequency will increase step by step from frequenc...

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Abstract

The invention discloses a device and a method for driving and controlling a stepper motor. The device comprises an upper control machine, a processing module and an interface module, wherein the upper control machine is used for generating a motor control command and setting configuration data; the processing module is used for receiving the motor control command and the configuration data and outputting a stepper motor pulse signal according to the configuration data when the motor control command indicates to drive the motor; and the interface module is used for outputting a drive signal to the stepper motor according to the stepper motor pulse signal. In the invention, requirements on the upper control machine are low, so that cost and realization complication can be reduced.

Description

technical field [0001] The invention relates to the field of industrial control, in particular to a drive control device and method for a stepping motor. Background technique [0002] The speed of a stepper motor depends on the pulse frequency, the number of rotor teeth and the number of beats. Its angular velocity is proportional to the pulse frequency and synchronized with the pulse in time. Therefore, when the number of rotor teeth and the number of running beats are fixed, the required speed can be obtained as long as the pulse frequency is controlled. Since the stepper motor is started by its synchronous torque, in order not to lose the step, the starting frequency is not high. In order to give full play to the fast performance of the motor, the motor is usually started at a frequency lower than the starting frequency, and then the pulse frequency is gradually increased until the desired speed. The selected change rate should ensure that the motor does not lose step a...

Claims

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Application Information

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IPC IPC(8): H02P8/04H02P8/24
Inventor 黄兵钟莲隋娜刘旭青
Owner 北京和利康源医疗科技有限公司
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