CN2814801Y - Stepping motor driving power supply - Google Patents
Stepping motor driving power supply Download PDFInfo
- Publication number
- CN2814801Y CN2814801Y CN 200520113360 CN200520113360U CN2814801Y CN 2814801 Y CN2814801 Y CN 2814801Y CN 200520113360 CN200520113360 CN 200520113360 CN 200520113360 U CN200520113360 U CN 200520113360U CN 2814801 Y CN2814801 Y CN 2814801Y
- Authority
- CN
- China
- Prior art keywords
- effect transistor
- field effect
- port
- circuit
- driving
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a stepping motor driving power supply, which belongs to power field and is used for solving the driving problem of a stepping motor. The utility model is composed of an MCU controller, a D/A converting circuit, a power amplification circuit, a display circuit, an input keyboard and a 485 communication interface, wherein MUC is a CPU single chip computer chip; ports from I0A0 to I0A7 of MUC are connected with the input keyboard; ports from I0A8 to I0A15 are connected with the an eight-bit parallel port of the converting circuit; the ports from I0A11 to I0A15 are respectively connected with the power amplification circuit; the D/A converting circuit adopts an eight-way eight-bit D/A converting chip; the power amplification circuit adopts five-way driving which respectively corresponds to five phase windings. The utility model adopts integrated design and can realize control, driving and all functions of associated circuits. The utility model can carry out driving of the stepping motor from two to five phases and the driving current can be continuously adjusted from one A to five A. The running parameters, the operating modes and the operating states of the stepping motor can be arranged by software or the keyboard.
Description
Technical field
The utility model relates to a kind of driving source for step motor, belongs to power technique fields.
Background technology
Stepping motor is a kind of electric impulse signal to be converted to the electromechanical compo of respective corners displacement (or displacement of the lines), and it and driving source for step motor are formed driving system of stepping motor.To the requirement of driving system of stepping motor is to possess high-performance, high reliability, highly integrated and characteristics cheaply.Yet, present some shortcomings of driving source for step motor ubiquity, these shortcomings show the following aspects:
The one, power supply product adopts discrete device to constitute mostly, and its power consumption is big, efficient is low, volume is big, and a cover driving source for step motor can only drive a stepping motor, is difficult for satisfying the requirement that the digital control system multiaxis drives;
The 2nd, stepping motor has two-phase, three-phase, four phases, five to equate various ways, and present driving source for step motor only can be applicable to the stepping motor of a certain number of phases usually, though the driving power that drives multiple stepping motor is perhaps arranged, and its driving force is very limited;
The 3rd, when dispatching from the factory, operational factor gives setting, be difficult to according to the real work situation running parameters such as frequency, speed, acceleration, angular displacement be carried out personal settings by the user, motor performance is under some influence.
Based on above situation, the user wishes to develop a kind of novel stepper motor driving power, to solve above-mentioned defective under the prerequisite that guarantees reliability and stability.
Summary of the invention
Technical problem to be solved in the utility model provide a kind of can realize multiaxis drive, possess widely adaptability, and can the on-the-spot driving source for step motor of setting running parameter.
The technical scheme that addresses the above problem is:
A kind of driving source for step motor, it is made up of MCU controller, D/A change-over circuit, power amplifier, display circuit, defeated people's keyboard and 485 communication interfaces, and each circuit formation and interconnected relationship are as follows:
Described MCU controller is a singlechip chip, its I0A0～I0A7 port is connected with input keyboard, I0B7, I0B8, I0B3, I0BI0 port are connected with RO, RE, DE, the D1 port of 485 communication interfaces respectively, I0A8～I0A15 port is connected with 8 parallel-by-bit I/O mouth DB0～DB7 of D/A change-over circuit respectively, and I0B11～I0B15 port is connected with power amplifier respectively;
Described D/A change-over circuit adopts 8 tunnel 8 D/A conversion chip, and its five voltage output end V0A, V0B, V0C, V0D, V0E are connected with power amplifier;
Described power amplifier is 5 tunnel driving power amplifiers, is respectively A phase, B phase, C phase, D phase, E phase, and they are connected with the voltage output end of described D/A conversion chip respectively, also are connected with the pulse signal output end of described singlechip chip simultaneously.
Above-mentioned driving source for step motor, described power amplifier adopts two voltage high pressure chopping wave constant current circuit, the two voltage high pressure chopping wave constant current circuit in every road by with door U1, transport and placing device U2, comparator U3, field effect transistor Q1, Q2, diode D1, D2, resistance R 3 is formed, wherein, the output of the forward termination D/A conversion chip of comparator U3, the source electrode of the negative sense termination field effect transistor Q2 of comparator U3, the output of comparator U3 connects an input with door U2, the grid that is connected field effect transistor Q1 with the output of door, be connected in MCU controller I0B11～I0B15 port with another input of door, the source electrode of field effect transistor Q1, the drain electrode of field effect transistor Q2 connects the end that stepping motor drives winding L mutually respectively, its drain electrode connects DC power supply, the source electrode of field effect transistor Q2 is through resistance R 3 ground connection, the input that a port in described MCU controller I0B11～I0B15 port connects, the pulse signal output end that latter's output connects the grid singlechip chip of field effect transistor Q2 is connected, the drain electrode of Q1 is the output of power amplifier, the source electrode serial connection current-limiting resistance R2 of field effect transistor Q1, diode D2 ground connection, the source electrode serial connection current-limiting resistance R1 of field effect transistor Q2, diode D1 ground connection.
Above-mentioned driving source for step motor, described display circuit adopts the LCD of 128*64 dot matrix.
The utility model adopts integrated design, can realize the repertoire of control circuit, drive circuit and interlock circuit.It possesses good versatility, can carry out the driving of two-phase, three-phase, four phases, five phase step motor, and driving force can satisfy most users' requirement.Its drive current range is adjustable continuously from 1A to 15A.The utility model also adopts population parameterization that environment is set, no matter be the operational factor (as the number of phases, frequency, initial velocity, actuating speed, acceleration, angular displacement, segmentation number, drive current etc.) of stepping motor, still mode of operation, operating state (as direction, start, stop) etc., all can utilize software to realize the parameter setting easily, or finish the exchange of people's machine information, and finally control operation by controller by keyboard.
Description of drawings
Fig. 1 is an electrical schematic diagram of the present utility model;
Fig. 2 is two voltage high pressure chopping wave constant current circuit theory diagrams that power amplifier adopts;
Fig. 3 is the main program FB(flow block).
Embodiment
As shown in Figure 1, circuit of the present utility model comprises 8 parts: MCU controller, D/A change-over circuit, power amplifier, display circuit, keyboard input and 485 communication interfaces, and division is as follows:
1.MCU the model of the singlechip chip that controller adopts is the SPACE61 chip, this chipset transfer of data, is controlled to be one, realizes automatic controlled function.The SPACE61 chip has low-power consumption and high-speed disposal ability; Sheet internal program, data storage; The PWM output signal, the special instruction of DSP algorithm; And basic I/O mouth; High speed instruction cycle of the highest 25ns.Utilize it to export 8 bit digital quantity control signals.Its 41 pin～48 pin connect keyboard circuit, and 53～60 pin connect the D/A change-over circuit, and 64～68 pin connect power amplifier, and 79,78,2,76 pin connect 485 communication interfaces.
2.D/A change-over circuit is converted to the voltage signal of simulation to the digital control amount of single-chip microcomputer, direct control motor after amplifying.The D/A conversion chip that the utility model is selected for use is the AD5346 chip, integrated 88 voltages output digital-to-analog converters (DAC) on this chip.All DAC pass through one 8 parallel-by-bit I/O mouth and CPU singlechip chip generation read-write operation.Utilize 8 parallel-by-bit I/0 mouths of D/A conversion chip, a step pitch of stepping motor is divided into 256 grades, just 28 powers reach the high-precision segmentation requirement of voltage.The utility model uses five voltage output digital to analog converters of AD5346 chip, directly exports the voltage of 0-10V, to control the motor windings of maximum five phases, reduces circuit complexity.Its connected mode is: 25～32 pin connect the CPU singlechip chip, and 6,7,8,9,11 pin connect power amplifier.
When motor was in low frequency operation, the natural frequency of its rotational frequency and motor was close, and produces covibration and motor rotation steadily maybe can not be run well, and had therefore increased soft segmentation function for the utility model in design.Three sections solid vibration frequency sections are arranged in the middle of the system of this power supply is provided with, when the motor step frequency runs on these frequency bands, carry out computing by system program, under the constant situation of assurance speed, automatically carry out 2,4,8 or 16 times of segmentations, avoid the motor resonance frequency, guarantee the normal operation of motor.
The implementation procedure of segmentation is that example is illustrated with two phase windings.By the digital quantity voltage control signal that single-chip microcomputer is sent here, through the electric voltage signal that slightly is converted to analog quantity of D/A conversion, deliver to again on the amplification driving circuit, after amplifying, directly deliver to two phase windings of stepping motor.In circuit, according to the segmentation gear of setting, calculate relevant parameter by CPU, generate corresponding staircase waveform, inserted the electric current composite vector.Under the control signal of forward or reverse, the staircase waveform pulse is sent into D/A converter spare ADC5346 chip by output port and is carried out the conversion of correspondent voltage composite vector, the output corresponding voltage value is amplified the control step motor through driving, thereby has realized that segmentation drives.
3. power amplifier drives and adopts two voltage high pressure chopping wave constant current circuit, and sort circuit is low in energy consumption, and output torque is big, and control is simple.Power field effect transistor IRF250 is as driving tube, and the permission maximum current is 20A, can satisfy the needs of the drive current of high-power stepper motor tens peaces.Can be set up in parallel five power amplifiers, provide five phase currents to drive.
Fig. 2 circuit is the drive circuit module of a single-phase winding, adopts two voltage high pressure chopping wave constant current circuit.Wherein U1, transport and placing device U2 are and door, and comparator U3 is a voltage comparator, and Q1, Q2 are power tube, and R3 is the constant current sampling resistor, and pwm signal is the stepping pulse signal of motor, and DAC is the voltage signal that is used for controlling phase current by D/A converter output.
In course of normal operation, the DAC signal is added in the positive input of voltage comparator, compare with the voltage Vr3 on the R3, when the VR3 value surpasses DAC moment, voltage comparator output zero potential, the drive current of sampling resistor R3 of flowing through this moment is 0, does not have voltage on the R3, and voltage comparator is output as height.
Pwm signal and DAC signal arrive simultaneously, this moment, the drive current in the winding was 0, that is the sampling resistor R3 voltage VR3 that flows through is 0, and the DAC signal makes voltage comparator output put height, pwm signal is opened power tube Q1, Q2, is added in high pressure on the stepping motor winding and makes electric current fast rise in the winding.When the electric current in the winding rises to more than the rated value, the voltage VR3 that produces from constant current sampling resistor R3 is higher than DAC voltage, and the amplifier output low level is turn-offed high-end power tube Q1, be powered-down, the back electromotive force in the winding is released through winding L, Q2, D2, R2 loop.When electric current drops to rated value when following, the voltage VR3 that produces on resistance R 3 is lower than DAC voltage, and voltage comparator output high level makes Q1 conducting again, high voltage source be added on electric current is risen.Said process constantly repeated in the pwm signal valid period.Electric current in winding just remains on the waveform that rated value fluctuates with zigzag up and down like this.At pwm signal is 0 o'clock, and Q1, Q2 turn-off, and electric current is released through bleed-off circuit.
4. display circuit adopts the LCD of 128 * 64 dot matrix that graphic interface and Chinese subtitle output are provided, and has good man-machine interaction.
5. the utility model adopts 4 * 4 keyboards, and the user carries out system's setting by keyboard.System's setting comprises the parameter of electric machine, resonance frequency, the setting of multiple mode of operation parameter, system's Default Value etc.This population parameter setting can be satisfied different capacity, the Based Intelligent Control of dissimilar stepping motors, for example: adjust phase current coupling power of motor, adjust and drive way, the stepping clock frequency is set, shield resonance frequency etc. with automatic segmentation with the coupling actuating speed with the coupling number of motor phases.The utility model is according to the work characteristics of stepping motor, and built-in multiple mode of operation is guaranteeing that motor not under the situation of speed change, can shield resonance frequency certainly employing 2 to 16 times of segmentations, make the motor operation more steadily, accurately controlled.
6. under other mode of operation, the utility model and host computer have 485 communication interfaces, can finish the compound movement of motor.A supervisory controller mates two or more, and the most nearly 255 driving governors can be realized the simple control of some complex processes.
The utility model parameter designing index:
1. .90V driving DC voltage; 2. .1-15A phase place peak current is adjustable, adaptive two～five mutually various stepping motors; 3. .LCD shows; 4.. temperature becomes overtemperature protection; 5.. adjustable operation stepping clock frequency 0-5KHz; 6.. reach as high as 256 grades of segmentations.
Claims (3)
1. driving source for step motor, it is characterized in that: it is made up of MCU controller, D/A change-over circuit, power amplifier, display circuit, input keyboard and 485 communication interfaces, each circuit constitute and interconnected relationship as follows:
Described MCU controller is a singlechip chip, its I0A0～I0A7 port is connected with input keyboard, I0B7, I0B8, I0B3, I0B10 port are connected with RO, RE, DE, the D1 port of 485 communication interfaces respectively, I0A8～I0A15 port is connected with 8 parallel-by-bit I/O mouth DB0～DB7 of D/A change-over circuit respectively, and I0B11～I0B15 port is connected with power amplifier respectively;
Described D/A change-over circuit adopts 8 tunnel 8 D/A conversion chip, and its five voltage output end V0A, V0B, V0C, V0D, V0E are connected with power amplifier;
Described power amplifier is 5 tunnel driving power amplifiers, is respectively A phase, B phase, C phase, D phase, E phase, and they are connected with the voltage output end of described D/A conversion chip respectively, also are connected with the pulse signal output end of described singlechip chip simultaneously.
2. driving source for step motor according to claim 1, it is characterized in that: described power amplifier adopts two voltage high pressure chopping wave constant current circuit, the two voltage high pressure chopping wave constant current circuit in every road by with door U1, transport and placing device U2, comparator U3, field effect transistor Q1, Q2, diode D1, D2, resistance R 3 is formed, wherein, the output of the forward termination D/A conversion chip of comparator U3, the source electrode of the negative sense termination field effect transistor Q2 of comparator U3, the output of comparator U3 connects an input with door U2, the grid that is connected field effect transistor Q1 with the output of door, be connected in MCU controller I0B11～I0B15 port with another input of door, the source electrode of field effect transistor Q1, the drain electrode of field effect transistor Q2 connects the end that stepping motor drives winding L mutually respectively, its drain electrode connects DC power supply, the source electrode of field effect transistor Q2 is through resistance R 3 ground connection, the input that a port in described MCU controller I0B11～I0B15 port connects, the pulse signal output end that latter's output connects the grid singlechip chip of field effect transistor Q2 is connected, the drain electrode of Q1 is the output of power amplifier, the source electrode serial connection current-limiting resistance R2 of field effect transistor Q1, diode D2 ground connection, the source electrode serial connection current-limiting resistance R1 of field effect transistor Q2, diode D1 ground connection.
3. driving source for step motor according to claim 2 is characterized in that: described display circuit adopts the LCD of 128*64 dot matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113360 CN2814801Y (en) | 2005-07-13 | 2005-07-13 | Stepping motor driving power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113360 CN2814801Y (en) | 2005-07-13 | 2005-07-13 | Stepping motor driving power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2814801Y true CN2814801Y (en) | 2006-09-06 |
Family
ID=36949887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520113360 Expired - Fee Related CN2814801Y (en) | 2005-07-13 | 2005-07-13 | Stepping motor driving power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2814801Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286075B (en) * | 2008-06-13 | 2010-06-09 | 中兴通讯股份有限公司 | Adjustable energy supply linear programmed control device |
| CN101986551A (en) * | 2010-09-25 | 2011-03-16 | 广东宝莱特医用科技股份有限公司 | Stepper motor drive control device |
| CN104242753A (en) * | 2013-06-24 | 2014-12-24 | 中国计量学院 | Stepping motor swing controller |
| CN108599642A (en) * | 2018-05-23 | 2018-09-28 | 西安明松电子科技有限公司 | A kind of driving of high-precision five phase step motor and control device and method |
| CN110474572A (en) * | 2019-07-31 | 2019-11-19 | 广西民族大学 | A kind of revolving speed system for tracking and method based on frequency transformation |
-
2005
- 2005-07-13 CN CN 200520113360 patent/CN2814801Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286075B (en) * | 2008-06-13 | 2010-06-09 | 中兴通讯股份有限公司 | Adjustable energy supply linear programmed control device |
| CN101986551A (en) * | 2010-09-25 | 2011-03-16 | 广东宝莱特医用科技股份有限公司 | Stepper motor drive control device |
| CN101986551B (en) * | 2010-09-25 | 2012-12-19 | 广东宝莱特医用科技股份有限公司 | Stepper motor drive control device |
| CN104242753A (en) * | 2013-06-24 | 2014-12-24 | 中国计量学院 | Stepping motor swing controller |
| CN108599642A (en) * | 2018-05-23 | 2018-09-28 | 西安明松电子科技有限公司 | A kind of driving of high-precision five phase step motor and control device and method |
| CN110474572A (en) * | 2019-07-31 | 2019-11-19 | 广西民族大学 | A kind of revolving speed system for tracking and method based on frequency transformation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2814801Y (en) | Stepping motor driving power supply | |
| CN101499753A (en) | Brushless servo control system and driving apparatus based on permanent magnet brushless DC motor | |
| CN201490955U (en) | Two-phase step driver | |
| CN102497141A (en) | High torque starting method for high power alternating current (AC) servo driver | |
| CN1968003A (en) | A low-loss, high reliability integration magnetic levitation flywheel DC brushless motor control system | |
| CN109245532B (en) | Fractional order sliding mode control method of buck-boost converter | |
| CN108809171A (en) | It is a kind of to determine frequency PWM full-bridge type motor micro-stepping subdivision drive control methods and circuit | |
| CN101814882A (en) | Position-sensor-free permasyn motor direct driving device and driving method | |
| CN205566144U (en) | Many motors speed servo drive control structure | |
| CN108322116A (en) | A kind of switched reluctance motor system efficiency optimization control method | |
| CN2907030Y (en) | Low-harmonic variable-frequency speed regulator with reactive power compensation function | |
| CN201277180Y (en) | Special variable-frequency constant-pressure control apparatus for intelligent water pump | |
| CN113644856B (en) | Driving control method of high-frequency converter | |
| CN201118513Y (en) | Efficiency optimization control system for three-phase inductance electromotor | |
| CN202794931U (en) | Steering engine controller | |
| CN202713218U (en) | All-digital driving device of three-phase hybrid stepping motor | |
| CN202856676U (en) | Stepper motor driver | |
| CN203691315U (en) | Three-phase permanent magnet synchronous motor drive circuit | |
| CN2842514Y (en) | The electricity-saving appliance of the slow slope of a kind of usefulness lifting pressure regulation | |
| CN203368394U (en) | AC motor asynchronous servo control electricity-saving device | |
| CN2843772Y (en) | Electronic constant torque wrench torque control device | |
| CN112003505A (en) | DSP-based electric bicycle digital control system | |
| Wang et al. | Digital Control System for Stepping Motor Driver Chip | |
| CN202696529U (en) | Direct-current motor speed-regulating device for medical electronic linear accelerator | |
| Wang et al. | Design and Experimental Study of DC Servomotor Controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |