CN205389182U - Direct current motor speed control system based on single chip microcomputer control - Google Patents
Direct current motor speed control system based on single chip microcomputer control Download PDFInfo
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- CN205389182U CN205389182U CN201620211649.2U CN201620211649U CN205389182U CN 205389182 U CN205389182 U CN 205389182U CN 201620211649 U CN201620211649 U CN 201620211649U CN 205389182 U CN205389182 U CN 205389182U
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Abstract
The utility model discloses a direct current motor speed control system based on single chip microcomputer control, which comprises a display screen, the bottom of display screen is equipped with the keyboard, the inside of display screen is equipped with singlechip and AD converter, the bottom of singlechip is equipped with the timer, the upper portion of singlechip is equipped with the encoder, the AD converter includes AD conversion module, the encoder includes the photoelectric coding module, buffering shaping circuit is connected to photoelectric coding module electricity, the utility model discloses, carry out earlier signal acquisition through the system and carry out the AD conversion again, and then see the pulse off through given synchronization signal messenger singlechip and control trigger circuit, the output of control rectifier circuit, actuating motor work lets the singlechip carry out the comparison, amplify operations such as reaching the PID operation according to actual rotational speed and preset rotational speed, and it is big to reach the armature voltage scope of adjusting, and controllability is good, and the precision is high, and it is more simply more convenient to make people use.
Description
Technical field
This utility model relates to motor speed regulation system technical field, is specially a kind of based on monolithic processor controlled DC motor speed drive system.
Background technology
DC Transmission has good governor control characteristics and direct torque performance, applies in the industrial production relatively early and adopts so far.Early stage DC Transmission adopts contact control, switches direct-current motor armature by switchgear or field circuit resistance realizes step speed regulation.Occur after nineteen thirty that the rotary AC unit that amplidyne generator controls supplies electricity to dc motor and (is made up of ac motor M and DC generator G, it is called for short G M system), occur in that again magnetic amplifier and gasetron are powered later, large scale integrated circuit and Computer Control Technology, along with power electronics and electronic technology, it is achieved that the contactless of DC Transmission controls.Had passed through adjustment DC current by the handling characteristics of the speed of dc motor and input voltage or gasetron triggering instance obtains the dc motor that variable DC voltage is powered, so the simple proportionate relationship of exiting principle easily realized between speed.But, governor's controlled rectification direct current power supply speed control system was replaced later for this mode, not in use by.After controllable silicon nineteen fifty-seven, the rapidity of DC drive system, reliability and economy improve constantly, in 20th century, as a main flow high-speed transfer a very long time.Today is progressively to promote computer-controlled digital DC converter precision height, and the use of speed control system is in extensive range, represents the developing direction of direct-current electric drive.Why for many years after DC driver, industrial development is still widely used, it is important to simple means realize high-performance.Such as, it is tens thousand of that the speed of this system stability is up to every ten thousand steady speed precisions, wide rotating speed 1:1 ten thousand or more speed ratio control system, and quick response system response time shortens to several milliseconds or less.
At present, DC motor speed drive system seldom has by monolithic processor controlled, and the armature voltage adjustable extent of general control system is little, and controllability is poor, and precision is low, is difficult to meet the demand of people, and such control system uses troublesome.
Utility model content
The purpose of this utility model is in that to provide a kind of based on monolithic processor controlled DC motor speed drive system, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, this utility model provides following technical scheme: a kind of based on monolithic processor controlled DC motor speed drive system, including display screen, the bottom of described display screen is provided with keyboard, the inside of described display screen is provided with single-chip microcomputer and A/D converter, the bottom of described single-chip microcomputer is provided with intervalometer, and the top of described single-chip microcomputer is provided with encoder.
Described A/D converter includes A/D modular converter, described encoder includes photoelectric coding module, described photoelectric coding module electrical connection buffering shaping circuit, described buffering shaping circuit electrical connection single-chip microcomputer, the electrical connection of described single-chip microcomputer controls input module, display module and wave generator circuit, described wave generator circuit electrical connection power amplifier, described power amplifier electrical connection direct current generator, described direct current generator has been electrically connected generation rectification circuit and testing circuit, the electrical connection of described testing circuit selects module, described selection module electrical connection A/D modular converter, described A/D modular converter is electrically connected single-chip microcomputer and time block, described time block electrically connects the photoelectric circuit that tests the speed, the described photoelectric circuit electrical connection Phototube Coupling shaping circuit that tests the speed, described Phototube Coupling shaping circuit electrical connection direct current generator.
Preferably, described single-chip microcomputer is with AC89C52 for control chip.
Preferably, described A/D converter is A/D574 type.
Preferably, the chip of described intervalometer is AD8445B.
Compared with prior art, the beneficial effects of the utility model are: this utility model, first carried out signals collecting by system and carry out A/D conversion again, then make single-chip microcomputer send pulse again through given synchronizing signal to control to trigger circuit, control rectification circuit output, drive electric motor operation, allow single-chip microcomputer compare according to actual speed and given rotating speed, amplify and the operation such as PID arithmetic, can reach to regulate armature voltage scope big, controllability is good, precision is high, makes people use more simply more convenient.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is this utility model system block diagram.
In figure: 1 display screen, 2 keyboards, 3 single-chip microcomputers, 4 intervalometers, 5A/D transducer, 6 encoders.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Fig. 1-2, this utility model provides a kind of technical scheme: a kind of based on monolithic processor controlled DC motor speed drive system, including display screen 1, the bottom of described display screen 1 is provided with keyboard 2, the inside of described display screen 1 is provided with single-chip microcomputer 3 and A/D converter 5, the bottom of described single-chip microcomputer 3 is provided with intervalometer 4, and the top of described single-chip microcomputer 3 is provided with encoder 6.
nullDescribed A/D converter 5 includes A/D modular converter，Described encoder 6 includes photoelectric coding module，Described photoelectric coding module electrical connection buffering shaping circuit，Described buffering shaping circuit electrical connection single-chip microcomputer 3，The electrical connection of described single-chip microcomputer 3 controls input module、Display module and wave generator circuit，Described wave generator circuit electrical connection power amplifier，Described power amplifier electrical connection direct current generator，Described direct current generator has been electrically connected generation rectification circuit and testing circuit，The electrical connection of described testing circuit selects module，Described selection module electrical connection A/D modular converter，Described A/D modular converter is electrically connected single-chip microcomputer 3 and time block，Described time block electrically connects the photoelectric circuit that tests the speed，The described photoelectric circuit electrical connection Phototube Coupling shaping circuit that tests the speed，Described Phototube Coupling shaping circuit electrical connection direct current generator.
More economical in order to realize single-chip microcomputer 3, described single-chip microcomputer 3 is with AC89C52 for control chip, and the single-chip microcomputer 3 that AC89C52 is control chip is easy to use, relatively cheap.
In order to realize more closely changing, described A/D converter 5 is A/D574 type, and 574 type A/D converters can be as accurate as 12.
In order to realize the precision of intervalometer 4, the chip of described intervalometer 4 is AD8445B.
This utility model, system first carries out signals collecting and carries out A/D conversion again, then make single-chip microcomputer 3 send pulse again through given synchronizing signal to control to trigger circuit, control rectification circuit output, drive electric motor operation, there being testing circuit to treat, meeting rotating speed on opportunity is to single-chip microcomputer 3, allow single-chip microcomputer 3 compare according to actual speed and given rotating speed, amplify and the operation such as PID arithmetic, thus controlling the size at rectification circuit α angle and then changing the size of armature voltage, reach to regulate the purpose of motor speed.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, being appreciated that when without departing from principle of the present utility model and spirit and these embodiments can be carried out multiple change, amendment, replacement and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
- null1. one kind based on monolithic processor controlled DC motor speed drive system，Including display screen (1)，It is characterized in that: the bottom of described display screen (1) is provided with keyboard (2)，The inside of described display screen (1) is provided with single-chip microcomputer (3) and A/D converter (5)，The bottom of described single-chip microcomputer (3) is provided with intervalometer (4)，The top of described single-chip microcomputer (3) is provided with encoder (6)，Described A/D converter (5) includes A/D modular converter，Described encoder (6) includes photoelectric coding module，Described photoelectric coding module electrical connection buffering shaping circuit，Described buffering shaping circuit electrical connection single-chip microcomputer (3)，Described single-chip microcomputer (3) electrical connection controls input module、Display module and wave generator circuit，Described wave generator circuit electrical connection power amplifier，Described power amplifier electrical connection direct current generator，Described direct current generator has been electrically connected generation rectification circuit and testing circuit，The electrical connection of described testing circuit selects module，Described selection module electrical connection A/D modular converter，Described A/D modular converter is electrically connected single-chip microcomputer (3) and time block，Described time block electrically connects the photoelectric circuit that tests the speed，The described photoelectric circuit electrical connection Phototube Coupling shaping circuit that tests the speed，Described Phototube Coupling shaping circuit electrical connection direct current generator.
- 2. one according to claim 1 is based on monolithic processor controlled DC motor speed drive system, it is characterised in that: described single-chip microcomputer (3) is with AC89C52 for control chip.
- 3. one according to claim 1 is based on monolithic processor controlled DC motor speed drive system, it is characterised in that: described A/D converter (5) is A/D574 type.
- 4. one according to claim 1 is based on monolithic processor controlled DC motor speed drive system, it is characterised in that: the chip of described intervalometer (4) is AD8445B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620211649.2U CN205389182U (en) | 2016-03-21 | 2016-03-21 | Direct current motor speed control system based on single chip microcomputer control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620211649.2U CN205389182U (en) | 2016-03-21 | 2016-03-21 | Direct current motor speed control system based on single chip microcomputer control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205389182U true CN205389182U (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620211649.2U Expired - Fee Related CN205389182U (en) | 2016-03-21 | 2016-03-21 | Direct current motor speed control system based on single chip microcomputer control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994541A (en) * | 2021-02-04 | 2021-06-18 | 胡晓莉 | SCR power expansion control system for direct current motor |
-
2016
- 2016-03-21 CN CN201620211649.2U patent/CN205389182U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112994541A (en) * | 2021-02-04 | 2021-06-18 | 胡晓莉 | SCR power expansion control system for direct current motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160720 Termination date: 20180321 |
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| CF01 | Termination of patent right due to non-payment of annual fee |