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Control method of pulse stepping motor

A technology of a stepping motor and a control method, which is applied in the direction of motor generator control, control system, electrical components, etc., can solve the problems of difficult to obtain better improvement in the positioning accuracy and precision of the stepping motor, and inaccurate positioning, etc. Improved accuracy and improved cushioning performance

Active Publication Date: 2017-01-04
杭州大精机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As far as the control method of the existing stepping motor is concerned, it not only makes the positioning of the stepping motor inaccurate due to dynamic vibration when it reaches the target position, but also the positioning accuracy mainly depends on the frequency of the inherent step angle of the stepping motor. degree (size)
Therefore, based on the existing control methods of stepper motors, it is difficult to obtain a better improvement in the positioning accuracy and precision of stepper motors.

Method used

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  • Control method of pulse stepping motor
  • Control method of pulse stepping motor
  • Control method of pulse stepping motor

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Embodiment 1

[0038] Such as figure 1 As shown, the present embodiment provides a control system of a pulse stepper motor, which includes:

[0039] an instruction input module, which is used to input an operation instruction;

[0040] A control module, which is used to convert the operation command into a time series pulse signal whose overall waveform is a triangular wave or a trapezoidal wave, and the rising edge and falling edge of the time series pulse signal are both configured in a ladder shape; and

[0041] The power control module is used to make the power module supply power to the winding of the stepper motor in a certain way according to the time sequence pulse signal.

[0042] In this embodiment, the control module includes a pulse generation unit and a pulse distribution unit, the pulse generation unit is used to receive the operation instruction and form a pulse control signal, and the pulse distribution unit is used to distribute the pulse control signal to be used for each ...

Embodiment 2

[0050] Based on the control system of embodiment 1, the present embodiment provides a control method of a pulse stepping motor, which includes the following steps according to the signal processing flow:

[0051] (1) inputting a running command through a command input module;

[0052] (2) Convert the operation command into a timing pulse signal whose overall waveform is a triangular wave or a trapezoidal wave through a control module, and make the rising edge and falling edge of the timing pulse signal both be a ladder wave;

[0053] (3) A power control module is used to control the power supply module to supply power to the windings of the stepping motor in a certain way according to the time sequence pulse signal.

[0054] In this embodiment, in step (2), the control module includes a digital circuit or a microprocessor.

[0055] In this embodiment, in step (2), after the timing pulse signal is generated, the timing pulse signal is converted from digital to analog by a D / A ...

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Abstract

The invention relates to the technical field of control of a pulse stepping motor, and in particular to a control method of the pulse stepping motor. The control method comprises the following steps according to a signal processing flow: (1) inputting a running instruction by an instruction input module; (2) converting the running instruction to a time sequence pulse signal with an integral waveform being a triangular wave or a trapezoidal wave by a control module, wherein a rising edge and a falling edge of the time sequence pulse signal are stepped waves; and (3) controlling a power supply module to supply power to a winding of the stepping motor according to a certain mode by a power control module according to the time sequence pulse signal. By the method, excellent positioning accuracy and positioning precision can be acquired.

Description

technical field [0001] The invention relates to the technical field of control of a pulse stepping motor, in particular to a control method of a pulse stepping motor. Background technique [0002] There are many kinds of mechanisms that use positioning control as the main function, which is usually realized by motor drive, and the most commonly used ones are servo motors and stepping motors. [0003] Among them, the stepper motor realizes the rotation of the rotor through several steps of a certain angle (for example: one step is 1.8 degrees, also known as the step angle), and the step angle corresponds to a pulse signal, that is, a pulse signal is given. The stepper motor can be rotated by an angle of one step angle. Therefore, the user can preferably realize the positioning control function through the stepping motor by inputting a certain number of pulses. [0004] As far as the control method of the existing stepping motor is concerned, it not only makes the positionin...

Claims

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Application Information

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IPC IPC(8): H02P8/22H02P8/18
CPCH02P8/18H02P8/22
Inventor 陈华峰
Owner 杭州大精机械制造有限公司
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