CN206099822U

CN206099822U - Dc motor soft start device based on AT89C51 singlechip

Info

Publication number: CN206099822U
Application number: CN201620738104.7U
Authority: CN
Inventors: 刘洪霞; 闫兴德
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2016-07-14
Filing date: 2016-07-14
Publication date: 2017-04-12
Anticipated expiration: 2026-07-14

Abstract

The utility model discloses a dc motor soft start device based on AT89C51 singlechip, comprising an one -chip microcomputer, the output of singlechip is connected with liquid crystal display module's input and IGBT drive module's input, IGBT drive module's output is connected with the input of IGBT module, and the output of IGBT module is connected with the motor armature, the input of singlechip is connected with the output of current detection unit, the output of current detection unit is connected with analog -to -digital conversion module through the wire, and analog -to -digital conversion module is connected with current transformer through the wire, current transformer passes through the input of wire and current detection unit and connects, and the input of current detection unit is connected with the main circuit current signal through the wire. The utility model has the advantages of simple structure, the cost is lower, the simple operation, dc motor is undertaken controlling by the inside procedure of singlechip AT89C51, very big reduction the human cost, and work efficiency is high.

Description

A kind of dc motor soft starting device based on AT89C51 single-chip microcomputers

Technical field

The utility model is related to dc motor soft starting device technical field, more particularly to a kind of mono- based on AT89C51 The dc motor soft starting device of piece machine.

Background technology

Dc motor is exactly the motor that direct current energy is converted into mechanical energy, and the excitation mode of direct current generator is referred to encouraging How magnetic winding powers, produces magnetic flux gesture and set up the problem of main field, dc motor according to the difference of excitation mode, Direct current generator can be divided into him and connect dc motor and connect dc motor, series direct current motor and multiply-connected dc motor, directly The good speed adjustment features and staring torque of stream motor are big, and existing dc motor is all, by switch directly control, to need People are operated manually so that inefficiency, and significantly increase human cost.

Utility model content

The purpose of this utility model is that, in order to solve shortcoming present in prior art, and the one kind for proposing is based on The dc motor soft starting device of AT89C51 single-chip microcomputers.

To achieve these goals, the utility model employs following technical scheme：

A kind of dc motor soft starting device based on AT89C51 single-chip microcomputers, including single-chip microcomputer, the single-chip microcomputer it is defeated Go out end and be connected with the input of LCD MODULE and the input of IGBT drive module, the output end of the IGBT drive module The input of IGBT module is connected with, and the output end of IGBT module is connected with motor armature, the input of the single-chip microcomputer The output end of current detecting unit is connected with, the output end of the current detecting unit is connected with analog-to-digital conversion mould by wire Block, and analog-to-digital conversion module is connected with current transformer by wire, the current transformer is by wire and current detecting list The input connection of unit, and the input of current detecting unit is connected with main circuit current signal by wire.

Preferably, the single-chip microcomputer is ATC single-chip microcomputers, and the inside of single-chip microcomputer is provided with control program.

Preferably, the current detecting unit includes current transformer and analog-to-digital conversion module.

Preferably, the LCD MODULE is TXW LCDs.

Preferably, the single-chip microcomputer is provided with crystal oscillating circuit and reset circuit.

The beneficial effects of the utility model：

1st, by the current transformer in current detecting unit and modulus dress mold changing block, main circuit current signal can be entered Row detection, and main circuit current signal is converted to into data signal, in being then delivered to single-chip microcomputer；

2nd, by single-chip microcomputer and LCD MODULE, LCD MODULE can show to the signal that single-chip microcomputer is received Show；

3rd, by IGBT drive module, IGBT drive module can be driven to IGBT module, and IGBT drive module The start-up operation of system is realized by starting the state switching of winding；

Simple structure of the present utility model, cost is relatively low, simple operation, and dc motor is by AT89C51 system What the program in portion was controlled, greatly reduce human cost, and high working efficiency.

Description of the drawings

Fig. 1 be the utility model proposes a kind of dc motor soft starting device based on AT89C51 single-chip microcomputers knot Structure schematic diagram.

In figure：1 main circuit current signal, 2 current detecting units, 3 current transformers, 4 analog-to-digital conversion modules, 5 single-chip microcomputers, 6 LCD MODULEs, 7 IGBT drive modules, 8 IGBT modules, 9 motor armatures.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.

With reference to Fig. 1, a kind of dc motor soft starting device based on AT89C51 single-chip microcomputers, including single-chip microcomputer 5, monolithic The output end of machine 5 is connected with the input of the input of LCD MODULE 6 and IGBT drive module 7, IGBT drive module 7 Output end is connected with the input of IGBT module 8, and the output end of IGBT module 8 is connected with motor armature 9, single-chip microcomputer 5 Input is connected with the output end of current detecting unit 2, and the output end of current detecting unit 2 is connected with analog-to-digital conversion by wire Module 4, and analog-to-digital conversion module 4 is connected with current transformer 3 by wire, current transformer 3 is by wire and current detecting The input connection of unit 2, and the input of current detecting unit 2 is connected with main circuit current signal 1, this practicality by wire New beneficial effect：By the current transformer 3 in current detecting unit 2 and modulus dress mold changing block 4, can be to main circuit electricity Stream signal 1 is detected, and main circuit current signal 1 is converted to into data signal, in being then delivered to single-chip microcomputer 5；By list Piece machine 5 and LCD MODULE 6, LCD MODULE 6 can show to the signal that single-chip microcomputer 5 is received；Driven by IGBT Dynamic model block 7, IGBT drive module 7 can be driven to IGBT module 8, and IGBT drive module 7 is by the shape of startup winding The start-up operation of system is realized in state switching；Simple structure of the present utility model, cost is relatively low, simple operation, and dc motor is It is controlled by the program inside AT89C51 system, greatly reduces human cost, and high working efficiency.

In the utility model, single-chip microcomputer 5 is AT89C51 single-chip microcomputers, and the inside of single-chip microcomputer 5 is provided with control program, electric current Detector unit 2 includes current transformer 3 and analog-to-digital conversion module 4, and LCD MODULE 6 is T315XW02 LCDs, single Piece machine 5 is provided with crystal oscillating circuit and reset circuit, the beneficial effects of the utility model：By the electric current in current detecting unit 2 Transformer 3 and modulus dress mold changing block 4, can detect to main circuit current signal 1, and main circuit current signal 1 is changed For data signal, in being then delivered to single-chip microcomputer 5；By single-chip microcomputer 5 and LCD MODULE 6, LCD MODULE 6 can be right The signal that single-chip microcomputer 5 is received is shown；By IGBT drive module 7, IGBT drive module 7 can be carried out to IGBT module 8 Drive, and IGBT drive module 7 realizes the start-up operation of system by starting the state switching of winding；Structure of the present utility model Simply, cost is relatively low, simple operation, dc motor be by AT89C51 system inside program be controlled, greatly Reduce human cost, and high working efficiency.

Operation principle：Main circuit current signal 1 is by the current transformer 3 and modulus dress mold changing in current detecting unit 2 Block 4, can detect to main circuit current signal 1, and main circuit current signal 1 is converted to into data signal, then convey To in single-chip microcomputer 5, single-chip microcomputer 5 controls LCD MODULE 6 to show the signal that single-chip microcomputer 5 is received, and IGBT drives mould Block 7 can be driven to IGBT module 8, and IGBT drive module 7 realizes opening for system by starting the state switching of winding Dynamic operation.

The above, only the utility model preferably specific embodiment, but protection domain of the present utility model is not Be confined to this, any those familiar with the art in the technical scope that the utility model is disclosed, according to this practicality New technical scheme and its utility model design in addition equivalent or change, all should cover in protection model of the present utility model Within enclosing.

Claims

1. a kind of dc motor soft starting device based on AT89C51 single-chip microcomputers, including single-chip microcomputer（5）, it is characterised in that institute State single-chip microcomputer（5）Output end be connected with LCD MODULE（6）Input and IGBT drive module（7）Input, institute State IGBT drive module（7）Output end be connected with IGBT module（8）Input, and IGBT module（8）Output end connection There is motor armature（9）, the single-chip microcomputer（5）Input be connected with current detecting unit（2）Output end, electric current inspection Survey unit（2）Output end analog-to-digital conversion module is connected with by wire（4）, and analog-to-digital conversion module（4）Connected by wire There is current transformer（3）, the current transformer（3）By wire and current detecting unit（2）Input connection, and electric current Detector unit（2）Input main circuit current signal is connected with by wire（1）.

2. a kind of dc motor soft starting device based on AT89C51 single-chip microcomputers according to claim 1, its feature exists In the single-chip microcomputer（5）For AT89C51 single-chip microcomputers, and single-chip microcomputer（5）Inside be provided with control program.

3. a kind of dc motor soft starting device based on AT89C51 single-chip microcomputers according to claim 1, its feature exists In the current detecting unit（2）Including current transformer（3）And analog-to-digital conversion module（4）.

4. a kind of dc motor soft starting device based on AT89C51 single-chip microcomputers according to claim 1, its feature exists In the LCD MODULE（6）For T315XW02 LCDs.

5. a kind of dc motor soft starting device based on AT89C51 single-chip microcomputers according to claim 1, its feature exists In the single-chip microcomputer（5）It is provided with crystal oscillating circuit and reset circuit.