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Device for improving rising characteristic of current in starting process of stepping motor

A stepper motor and current technology, applied in the direction of motor generator control, electrical components, control systems, etc., can solve the problem that the current rise characteristic of the stepper motor is not obvious, and achieve the effect of improving the current rise characteristic and the response characteristic curve.

Active Publication Date: 2014-02-05
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although there are more and more drive circuits for stepper motors, the improvement of the current rise characteristics when the stepper motor starts is not obvious

Method used

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  • Device for improving rising characteristic of current in starting process of stepping motor
  • Device for improving rising characteristic of current in starting process of stepping motor

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Embodiment Construction

[0011] figure 1 It is a schematic circuit diagram of the device for improving the current rising characteristics of the stepping motor at startup of the present invention. As shown in the figure, the device for improving the current rising characteristics of the stepping motor at starting of the present invention includes a pulse and a high level trigger device 1. Switching unit 2, trigger pulse stabilizing device 3, short-time pulse providing device 4, stepping motor 5, low voltage source Ea, high voltage source Hv, first transistor VT1, second transistor VT2, first resistor R1, second transistor Second resistor R2, third resistor R3, fourth resistor R4, fifth resistor R5, variable resistor RT, capacitor C, 5V voltage source.

[0012] Wherein, the negative pole of the high voltage source Hv is grounded, the positive pole thereof is connected to the emitter of the first transistor VT1 and one end of the second resistor R2, and the other end of the second resistor R2 is connect...

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Abstract

The invention relates to a device for improving the rising characteristic of the current in the starting process of a stepping motor. The device comprises a pulse and high level triggering device, a switch unit, a trigger pulse stabilizing device, a short time pulse providing device, the stepping motor, a lower voltage source, a high voltage source, a first transistor, a second transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a variable resistor, a capacitor and a 5V voltage source. The voltage switching method is adopted for the device to drive the stepping motor, the stepping motor can be started fast, the response characteristic curve of the stepping motor and the rising characteristic of the current in the starting process of the stepping motor can be improved, and thus the current is closer to a rectangle.

Description

technical field [0001] The invention relates to a device for improving the current rising characteristic when a stepping motor is started. Background technique [0002] As stepper motors are more and more widely used in production and life, people have higher and higher requirements for the operation, efficiency and life of stepper motors, which requires us to better improve the response characteristics of stepper motors, because These effects are achieved by improving the response of the motor. Although there are more and more drive circuits for stepper motors, the improvement of the current rise characteristics when the stepper motor is started is not obvious. Contents of the invention [0003] The present invention provides a kind of device that improves the current rise characteristic when stepper motor starts, and it comprises: [0004] Pulse and high level trigger device, switch unit, trigger pulse stabilization device, short time pulse supply device, stepper motor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P8/10
Inventor 李泽智王启银臧天权赵睿张尧苏彦军张小龙张博然
Owner STATE GRID CORP OF CHINA
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