CN108306559A - A kind of SCM Based DC motor speed drive system - Google Patents
A kind of SCM Based DC motor speed drive system Download PDFInfo
- Publication number
- CN108306559A CN108306559A CN201711478529.4A CN201711478529A CN108306559A CN 108306559 A CN108306559 A CN 108306559A CN 201711478529 A CN201711478529 A CN 201711478529A CN 108306559 A CN108306559 A CN 108306559A
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- CN
- China
- Prior art keywords
- driving chip
- pins
- switching tube
- source electrode
- generator
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/2805—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
Abstract
The invention discloses a kind of SCM Based DC motor speed drive systems, including the microcontroller being sequentially connected, PWM generator and driving amplifier, the output end of driving amplifier is connected with direct current generator, the output end of direct current generator is successively through tachometer generator, filter and A/D converter are connected with the input terminal of microcontroller, PWM generator is for generating pwm signal, direct current generator is driven by driving amplifier, tachometer generator is for detecting motor speed, and by feeding back to microcontroller after filter and A/D converter processing, PI calculating is carried out inside microcontroller, control output quantity, adjust the duty ratio of PWM generator output waveform, realize the speed regulating control of motor.The present invention detects motor speed using tachometer generator, and PI calculating is carried out inside microcontroller, controls output quantity, adjust the duty ratio of PWM generator output waveform, the speed regulating control for realizing motor ensures that motor is safely and reliably run so as to realize the stepless speed control of direct current generator.
Description
Technical field
The present invention relates to DC motor speed-regulating field more particularly to a kind of SCM Based DC motor speed drive systems.
Background technology
Direct current generator has good starting, braking ability, is suitable for, in a wide range of interior stepless speed control, needing to adjust many
Fast or quickly forward and reverse Electric Traction field is widely used.The control of early stage direct current generator is with analog circuit
Basis is formed using operational amplifier, nonlinear integrated circuit and digital circuit, and the hardware components of control system are extremely complex,
It has a single function, aging is easy due to component and is easily influenced in use by external interference, and system is very inflexible, debugging is tired
Difficulty makes the operational reliability of system and accuracy cannot be guaranteed.
Invention content
The purpose of the present invention is to provide a kind of SCM Based DC motor speed drive systems, can realize direct current generator
Stepless speed control, ensure motor safely and reliably run.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of SCM Based DC motor speed drive system, including the microcontroller, PWM generator and the drive amplification that are sequentially connected
The output end of device, driving amplifier is connected with direct current generator, and the output end of the direct current generator is successively through tachometer generator, filtering
Device and A/D converter are connected with the input terminal of microcontroller, and PWM generator is driven for generating pwm signal by driving amplifier
Dynamic direct current generator, tachometer generator feed back to monolithic for detecting motor speed after being handled by filter and A/D converter
Machine carries out PI calculating inside microcontroller, controls output quantity, adjusts the duty ratio of PWM generator output waveform, realizes motor
Speed regulating control.
Preferably, the driving amplifier includes phase inverter, the first driving chip and the second driving chip, the first driving core
12 pins of piece inverted device together with 10 pins of the second driving chip connects PWM generator, and the 10 of the first driving chip draws
Foot is connected with 12 pins of the second driving chip, and is connected with the output end of PWM generator, and the 7 of first driving chip draws
Foot is connected through first resistor with the grid of first switch pipe, and the drain electrode of first switch pipe connects positive pole, first switch pipe
Source electrode is connected through the first capacitance with 6 pins of the first driving chip, and the source electrode of first switch pipe is connected with one end of direct current generator,
The second diode, the other end and the third switching tube of the direct current generator are parallel between the source level and drain electrode of first switch pipe
Source electrode is connected, and the drain electrode of third switching tube connects positive pole, and the five or two is parallel between the source electrode and drain electrode of third switching tube
Pole pipe, the grid of third switching tube are connected with the other end of direct current generator；The source electrode of the first switch pipe also with second switch
The drain electrode of pipe is connected, and the source electrode of second switch pipe is connected with the source electrode of the 4th switching tube, and the drain electrode of the 4th switching tube is opened with third
The source electrode for closing pipe is connected, and the 6th diode, the source of the 4th switching tube are parallel between the source electrode and drain electrode of the 4th switching tube
Pole is also through the 5th resistance eutral grounding；
6 pins of first driving chip connect positive pole, 5 pins of the first driving chip and first through the first diode
The source electrode of switching tube is connected, and 3 pins of the first driving chip connect positive pole, and 2 pins of the first driving chip are through the second electricity
Hold connection positive pole, 2 pins of the first driving chip are also grounded；7 pins of second driving chip through 3rd resistor with
The grid of third switching tube is connected, and 6 pins of the second driving chip connect positive pole, the second driving chip through the 4th diode
6 pins be also connected with 5 pins of the second driving chip through third capacitance, 5 pins of the second driving chip and third switching tube
Source electrode be connected, 3 pins of the second driving chip connect positive pole, 3 pins of the second driving chip also through the 4th capacitance with
2 pins of the second driving chip are connected, and 1 pin of the second driving chip is connected through the 4th resistance with the grid of the 4th switching tube.
Preferably, first driving chip and the second driving chip are all made of IR2110 driving chips.
The present invention realizes the control of DC generator speed by adjusting the duty ratio of PWM generator output waveform, passes through
PWM generator generates pwm signal, and direct current generator is driven by driving amplifier, and motor speed is detected using tachometer generator
Degree, and by feeding back to microcontroller after filter and A/D converter processing, PI calculating, control output are carried out inside microcontroller
Amount adjusts the duty ratio of PWM generator output waveform, realizes the speed regulating control of motor, so as to realize the flat of direct current generator
Sliding speed governing ensures that motor is safely and reliably run.
Description of the drawings
Fig. 1 is the principle of the present invention block diagram；
Fig. 2 is the circuit diagram of driving amplifier of the present invention.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described embodiment
Only section Example of the invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Other all embodiments that art personnel are obtained without making creative work belong to the protection model of the present invention
It encloses.
As shown in Figures 1 and 2, a kind of SCM Based DC motor speed drive system of the present invention, including successively
Connected microcontroller, PWM generator and driving amplifier, the output end of driving amplifier are connected with direct current generator, the direct current
The output end of motor is connected through tachometer generator, filter and A/D converter with the input terminal of microcontroller successively, PWM generator
For generating pwm signal, direct current generator, tachometer generator is driven to lead to for detecting motor speed by driving amplifier
Microcontroller is fed back to after wave filter and A/D converter processing, PI calculating is carried out inside microcontroller, controls output quantity, is adjusted
The duty ratio of PWM generator output waveform realizes the speed regulating control of motor.
Driving amplifier includes inverter ic 1, the first driving chip IC2 and the second driving chip IC3, in the present embodiment
In, the first driving chip IC2 and the second driving chip IC3 are all made of IR2110 driving chips, and the 12 of the first driving chip IC2 draws
Foot inverted device IC1 connections PWM generator together with 10 pins of the second driving chip IC3, the 10 of the first driving chip IC2 draws
Foot is connected with 12 pins of the second driving chip IC3, and is connected with the output end of PWM generator, and the 7 of the first driving chip IC2
Pin is connected through first resistor R1 with the grid of first switch pipe Q1, and the drain electrode of first switch pipe Q1 connects positive pole VCC, the
The source electrode of one switching tube Q1 is connected through the first capacitance C1 with 6 pins of the first driving chip IC2, the source electrode of first switch pipe Q1 with
One end of direct current generator M is connected, and the second diode D2, the direct current are parallel between the source electrode and drain electrode of first switch pipe Q1
The other end of machine M is connected with the source electrode of third switching tube Q3, and the drain electrode of third switching tube Q3 connects positive pole VCC, and third is opened
It closes and is parallel with the 5th diode D5 between the source electrode and drain electrode of pipe Q3, the grid of third switching tube Q3 is another with direct current generator M's
End is connected；The source electrode of first switch pipe Q1 is also connected with the drain electrode of second switch pipe Q2, the source electrode and the 4th of second switch pipe Q2
The source electrode of switching tube Q5 is connected, and the drain electrode of the 4th switching tube Q4 is connected with the source electrode of third switching tube Q3, the 4th switching tube Q4's
The 6th diode D6 is parallel between source electrode and drain electrode, the source electrode of the 4th switching tube Q4 is also through the 5th resistance R5 ground connection；
Through the first diode D1 connection positive poles VCC, the 5 of the first driving chip IC2 draws 6 pins of first driving chip IC2
Foot is connected with the source electrode of first switch pipe Q1, and 3 pins of the first driving chip IC2 connect positive pole VCC, the first driving chip
2 pins of IC2 are also grounded through the second capacitance C2 connection positive poles VCC, 2 pins of the first driving chip IC2；Second driving core
7 pins of piece IC3 are connected through 3rd resistor R3 with the grid of third switching tube Q3, and 6 pins of the second driving chip IC3 are through the 4th
6 pins of diode D4 connection positive poles VCC, the second driving chip IC3 are also through third capacitance C3 and the second driving chip IC3
5 pins be connected, 5 pins of the second driving chip IC3 are connected with the source electrode of third switching tube Q3, the 3 of the second driving chip IC3
Pin connects 2 of 3 pins of positive pole VCC, the second driving chip IC3 also through the 4th capacitance C4 and the second driving chip IC3
Pin is connected, and 1 pin of the second driving chip IC3 is connected through the 4th resistance R4 with the grid of the 4th switching tube Q4.
10 pins of first driving chip IC2 are connected with 12 pins of the second driving chip IC3, the first driving chip IC2
12 pins be connected with 10 pins of the second driving chip IC3, the output signal for allowing for two driving chips in this way is opposite；When
10 pins of first driving chip IC2 and the second driving chip IC3 are high level, and when 1 pin of the first driving chip IC2 is
When low level and 7 pins are high level, the Q1 cut-offs of second switch pipe, the voltage on the first capacitance C1 is through the first driving chip IC2
It is added on the grid of first switch pipe Q1 so that the Q1 conductings of first switch pipe, similarly the 4th switching tube Q4 conductings, power supply VCC warps
First switch pipe Q1, direct current generator M and the 4th switching tube Q4 forming circuits, at this time direct current generator M rotating forwards.
When 10 pins of the first driving chip IC2 and the second driving chip IC3 are low level, 12 pins are high level, and
1 pin of first driving chip IC2 is high level and 7 pins when being low level, the Q2 conductings of second switch pipe, first switch pipe Q1
Cut-off, the at this time drain electrode of second switch pipe Q2 are filled by the first diode D1 to the first capacitance C1 close to zero level, power supply VCC
Electricity is prepared for the conducting of first switch pipe Q1, and similarly power supply VCC is charged by the 4th diode D4 to third capacitance C3, is
The conducting of 4th switching tube Q4 is prepared, and power supply VCC is formed back through third switching tube Q3, direct current generator M and second switch pipe Q2
Road, direct current generator M reversions.In the process, tachometer generator detects direct current generator M speed, and is converted by filter and A/D
Microcontroller is fed back to after device processing, PI calculating is carried out inside microcontroller, controls output quantity, adjusts PWM generator output waveform
Duty ratio, realize the speed regulating control of direct current generator M.
Claims (3)
1. a kind of SCM Based DC motor speed drive system, it is characterised in that：Microcontroller, PWM including being sequentially connected are produced
Raw device and driving amplifier, the output end of driving amplifier are connected with direct current generator, and the output end of the direct current generator passes through successively
Tachometer generator, filter and A/D converter are connected with the input terminal of microcontroller, and PWM generator leads to for generating pwm signal
Overdriven amplifier drives direct current generator, and tachometer generator passes through filter and A/D converter for detecting motor speed
Microcontroller is fed back to after processing, PI calculating is carried out inside microcontroller, controls output quantity, adjusts PWM generator output waveform
Duty ratio realizes the speed regulating control of motor.
2. a kind of SCM Based DC motor speed drive system as described in claim 1, it is characterised in that：The driving is put
Big device includes phase inverter, the first driving chip and the second driving chip, 12 pins and the second driving chip of the first driving chip
10 pins inverted device connects PWM generator, 10 pins of the first driving chip and 12 pins of the second driving chip together
It is connected, and is connected with the output end of PWM generator, 7 pins of first driving chip is through first resistor and first switch pipe
Grid be connected, the drain electrode of first switch pipe connects positive pole, and the source electrode of first switch pipe is through the first capacitance and the first driving
6 pins of chip are connected, and the source electrode of first switch pipe is connected with one end of direct current generator, source level and the drain electrode of first switch pipe
Between be parallel with the second diode, the other end of the direct current generator is connected with the source electrode of third switching tube, the leakage of third switching tube
Pole connects positive pole, is parallel with the 5th diode between the source electrode and drain electrode of third switching tube, the grid of third switching tube with
The other end of direct current generator is connected；The source electrode of the first switch pipe is also connected with the drain electrode of second switch pipe, second switch pipe
Source electrode be connected with the source electrode of the 4th switching tube, the drain electrode of the 4th switching tube is connected with the source electrode of third switching tube, the 4th switch
The 6th diode is parallel between the source electrode and drain electrode of pipe, the source electrode of the 4th switching tube is also through the 5th resistance eutral grounding；
6 pins of first driving chip connect positive pole, 5 pins of the first driving chip and first through the first diode
The source electrode of switching tube is connected, and 3 pins of the first driving chip connect positive pole, and 2 pins of the first driving chip are through the second electricity
Hold connection positive pole, 2 pins of the first driving chip are also grounded；7 pins of second driving chip through 3rd resistor with
The grid of third switching tube is connected, and 6 pins of the second driving chip connect positive pole, the second driving chip through the 4th diode
6 pins be also connected with 5 pins of the second driving chip through third capacitance, 5 pins of the second driving chip and third switching tube
Source electrode be connected, 3 pins of the second driving chip connect positive pole, 3 pins of the second driving chip also through the 4th capacitance with
2 pins of the second driving chip are connected, and 1 pin of the second driving chip is connected through the 4th resistance with the grid of the 4th switching tube.
3. a kind of SCM Based DC motor speed drive system as claimed in claim 2, it is characterised in that：Described first drives
Dynamic chip and the second driving chip are all made of IR2110 driving chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711478529.4A CN108306559A (en) | 2017-12-29 | 2017-12-29 | A kind of SCM Based DC motor speed drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711478529.4A CN108306559A (en) | 2017-12-29 | 2017-12-29 | A kind of SCM Based DC motor speed drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108306559A true CN108306559A (en) | 2018-07-20 |
Family
ID=62868226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711478529.4A Withdrawn CN108306559A (en) | 2017-12-29 | 2017-12-29 | A kind of SCM Based DC motor speed drive system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108306559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014132A (en) * | 2018-09-30 | 2018-12-18 | 大亚车轮制造有限公司 | A kind of cleaning device casting water cooling mold |
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|---|---|---|---|---|
| JP2001275374A (en) * | 2000-03-27 | 2001-10-05 | Brother Ind Ltd | Motor controller and storage medium |
| CN101266461A (en) * | 2008-04-23 | 2008-09-17 | 哈尔滨工程大学 | Large working capability finite corner DC moment electric motor location drive module |
| CN103840716A (en) * | 2012-11-21 | 2014-06-04 | 海洋王（东莞）照明科技有限公司 | Motor driving circuit |
| CN205123639U (en) * | 2015-11-06 | 2016-03-30 | 南京师范大学 | Micro direct current motor intelligence speed regulator |
| CN205509907U (en) * | 2016-03-02 | 2016-08-24 | 上海工程技术大学 | Direct current motor speed adjusting device based on DSP |
-
2017
- 2017-12-29 CN CN201711478529.4A patent/CN108306559A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001275374A (en) * | 2000-03-27 | 2001-10-05 | Brother Ind Ltd | Motor controller and storage medium |
| CN101266461A (en) * | 2008-04-23 | 2008-09-17 | 哈尔滨工程大学 | Large working capability finite corner DC moment electric motor location drive module |
| CN103840716A (en) * | 2012-11-21 | 2014-06-04 | 海洋王（东莞）照明科技有限公司 | Motor driving circuit |
| CN205123639U (en) * | 2015-11-06 | 2016-03-30 | 南京师范大学 | Micro direct current motor intelligence speed regulator |
| CN205509907U (en) * | 2016-03-02 | 2016-08-24 | 上海工程技术大学 | Direct current motor speed adjusting device based on DSP |
Non-Patent Citations (1)
| Title |
|---|
| 徐捷: "《模拟电路基础》", 28 February 1998 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014132A (en) * | 2018-09-30 | 2018-12-18 | 大亚车轮制造有限公司 | A kind of cleaning device casting water cooling mold |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180720 |
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| WW01 | Invention patent application withdrawn after publication |