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DC compensation method and circuit for stepping motor

A DC compensation, stepper motor technology, applied in the direction of motor generator control, electrical components, control systems, etc., can solve problems such as motor stuck, achieve the effect of preventing phase distortion and solving motor stuck

Active Publication Date: 2021-04-27
苏州智感电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a DC compensation method and circuit for stepping motors to solve the problem of motor jamming caused by phase distortion at the commutation point when the motor is moving at a low speed

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  • DC compensation method and circuit for stepping motor
  • DC compensation method and circuit for stepping motor
  • DC compensation method and circuit for stepping motor

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations of the present invention, and those of ordinary skill in the art based on the functions, methods, or structural changes made by these implementations Equivalent transformations or substitutions all fall within the protection scope of the present invention.

[0030] The technical solutions provided by various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] figure 1 It is a schematic flowchart of a DC compensation method for a stepping motor according to an embodiment of the present invention, so as to solve the problem of motor jamming caused by phase distortion at the commutation point when the motor is moving at a low speed. This DC compensation method for stepper motors includes:

[0032] Step 102. Obta...

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PUM

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Abstract

The present invention provides a DC compensation method and circuit for a stepping motor, the method comprising: obtaining a driving signal of a stepping motor; performing frequency spectrum analysis on the driving signal to obtain a frequency spectrum analysis value to determine the frequency spectrum analysis value the current DC component amplitude; if the current DC component amplitude is not the initial value, the target DC compensation value is determined based on the relationship between the current DC component amplitude and the previous DC component amplitude, so as to base on the target DC compensation The value compensates for the phase magnitude stored in the sine table. The invention solves the problem that the motor freezes due to phase distortion at the commutation point when the motor moves at a low speed.

Description

technical field [0001] The invention relates to the field of motor drive, in particular to a DC compensation method and circuit for a stepping motor. Background technique [0002] A stepper motor is an open-loop control motor that converts electrical pulse signals into angular displacement or linear displacement. In the case of non-overload, the speed and stop position of the motor only depend on the frequency and number of pulses of the pulse signal, and are not affected by the load. The influence of changes, when the stepper driver receives a pulse signal, it will drive the stepper motor to rotate a fixed angle in the set direction, called "step angle", and its rotation is to run step by step at a fixed angle Yes, the angular displacement can be controlled by controlling the number of pulses, so as to achieve the purpose of accurate positioning; at the same time, the speed and acceleration of the motor rotation can be controlled by controlling the pulse frequency, so as to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P8/36H02P8/12
CPCH02P8/12H02P8/36
Inventor 不公告发明人
Owner 苏州智感电子科技有限公司