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Two-phase stepping motor subdivision driver based on advanced RISC machine (ARM) control

A subdivision driver and stepping motor technology, applied in the control system, motor generator control, electrical components, etc., can solve the problems of poor control ability, high cost, and many interferences, and achieve fast processing and transmission, and reduce maintenance costs , The effect of hardware circuit simplification

Inactive Publication Date: 2013-01-23
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are two ways to realize the two-phase stepping subdivision driver, one is the traditional discrete way, and the other is to use the DSP way. The traditional way is simple in principle, but slow in speed, uses many devices, interferes a lot, and is difficult to maintain. DSP The method has strong computing power, but high cost and poor control ability

Method used

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  • Two-phase stepping motor subdivision driver based on advanced RISC machine (ARM) control
  • Two-phase stepping motor subdivision driver based on advanced RISC machine (ARM) control
  • Two-phase stepping motor subdivision driver based on advanced RISC machine (ARM) control

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Embodiment Construction

[0022] see Figure 1 to Figure 6 Examples and schematic diagrams given. A two-phase step subdivision driver based on ARM control includes an ARM main controller 1, a chopper modulator 2, a field effect transistor driver 3, and a sampling feedback circuit 4; the ARM main controller 1 includes a waveform generating unit 1.1, Clock generation unit 1.2, input IO signal acquisition unit 1.3, logic control unit 1.4, RS232 communication unit 1.5; field effect transistor driver 3 includes half-bridge drive unit 3.1, field effect transistor array unit 3.2; sampling feedback circuit 4 includes resistance capacitance filter 4.1 and Signal Conditioning Section 4.4;

[0023] This embodiment adopts the input IO signal acquisition unit 1.3 on the ARM main controller 1 to receive an external input signal through an optocoupler, and the waveform generation unit 1.1 and the logic control unit 1.4 synchronously generate sine waves, cosine waves, positive and negative for subdivision according t...

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Abstract

The invention discloses a two-phase stepping motor subdivision driver based on advanced RISC machine (ARM) control, and relates to the automatic control field of industry automation. The device comprises an ARM main controller, a chopping modulator, a field effect tube driver and a sampling feedback circuit, wherein the ARM main controller comprises a waveform generation unit, a clock generation unit, an input / output (IO) signal acquisition unit, a logic control unit and an RS232 communication unit; the field effect tube driver comprises a half-bridge driving unit and a field effect tube array unit; the sampling feedback circuit comprises a resistance-capacitance filter and a signal conditioning part; and sampling feedback guarantees consistency of setting and output. By an advanced ARM micro processor, processing units are integrated into one chip, so that the control precision and the flexibility are improved, and the production cost and the maintenance difficulty are reduced; and the two-phase stepping motor subdivision driver also has an independent running mode besides a controlled mode.

Description

technical field [0001] The invention relates to the field of industrial automation and automatic control, in particular to a two-phase stepping motor subdivision driver based on ARM control. Background technique [0002] In modern industrial automation control systems, stepper motors are widely used because of their speed and step number, which are easy to control. The stepper motor control is completed by the stepper motor driver. The step is divided into N parts, so that one phase current of the stepping motor changes in the form of a sine wave, and the other phase current changes in the form of a cosine wave. According to the vector synthesis of the force, the force distance of each small step is always constant, so that the stepping can be obtained Subdivision without affecting the performance and rotation stability of the stepper motor. [0003] There are two ways to realize the two-phase stepping subdivision driver, one is the traditional discrete way, and the other i...

Claims

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Application Information

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IPC IPC(8): H02P8/22
Inventor 唐颖黄凤江王举兴邓晓宇陈熙
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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