CN204013304U - A kind of motor driver - Google Patents
A kind of motor driver Download PDFInfo
- Publication number
- CN204013304U CN204013304U CN201420380804.4U CN201420380804U CN204013304U CN 204013304 U CN204013304 U CN 204013304U CN 201420380804 U CN201420380804 U CN 201420380804U CN 204013304 U CN204013304 U CN 204013304U
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- China
- Prior art keywords
- motor driver
- minimum system
- output signal
- chip minimum
- chip
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- Expired - Fee Related
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- Control Of Stepping Motors (AREA)
Abstract
The utility model relates to a kind of motor driver, include power circuit, reset circuit, single-chip minimum system, photoelectric coupling and motor driver, the output signal of described power circuit is transferred to reset circuit and single-chip minimum system, the output signal of described reset circuit is transferred to single-chip minimum system, the output signal of described single-chip minimum system is sent to motor driver through photoelectric coupling, the output signal of described motor driver is sent to load, the utility model sends control signal by single-chip minimum system, after photoelectric coupler isolation, pass to motor driver, and carry out the dynamic load of drive motors band by drive unit, have simple in structure, practical, anti-interference is good, the features such as fail safe is good.
Description
Technical field
The utility model relates to electronic circuit field, particularly be a kind of motor driver.
Background technology
In today of electric era, motor is being played the part of very important effect always in modern production and life.The particularly aggravation along with automaticity in recent years, industry more and more be unable to do without the work of motor, according to statistics, nowadays has 90% power source to come from motor, and the electric energy nearly 60% that China produces is for motor.Motor and people's life is closely related.And stepping motor is widely used in the higher kinetic control system of required precision, as robot, printer, floppy disk, plotter, machinery valve controller etc.At present, the control of stepping motor is mainly contained by the cycle pulse distributor that disperses device to form, software cycle pulse distributor, special integrated chip cycle pulse distributor etc.Disperse the cycle pulse distributor volume ratio of device composition larger, owing to disperseing the time delay of device, its reliability reduces simultaneously; Software ring distributor will take the running time of main frame, has reduced speed; Special integrated chip cycle pulse distributor integrated level is high, good reliability, but its adaptability is restricted, and the construction cycle is long simultaneously, demand expense is higher.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of motor driver is provided.
The utility model solves the technical scheme that its technical problem adopts: a kind of motor driver, include power circuit, reset circuit, single-chip minimum system, photoelectric coupling and motor driver, the output signal of described power circuit is transferred to reset circuit and single-chip minimum system, the output signal of described reset circuit is transferred to single-chip minimum system, the output signal of described single-chip minimum system is sent to motor driver through photoelectric coupling, and the output signal of described motor driver is sent to load.
Described single-chip minimum system adopts STC12LE2051 chip.
Described photoelectric coupling adopts TLP521-4 photoelectric coupling chip.
The L298 motor drive module that described motor driver is connected by L297 controllor for step-by-step motor and output thereof forms.
By adopting above-mentioned technical scheme, the beneficial effects of the utility model are: the utility model sends control signal by single-chip minimum system, after photoelectric coupler isolation, pass to motor driver, and carry out the dynamic load of drive motors band by drive unit, there is the features such as simple in structure, practical, anti-interference is good, fail safe is good.
Brief description of the drawings
Fig. 1 is frame assumption diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Further illustrate the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of motor driver of the present utility model, include power circuit, reset circuit, single-chip minimum system, photoelectric coupling and motor driver, the output signal of described power circuit is transferred to reset circuit and single-chip minimum system, the output signal of described reset circuit is transferred to single-chip minimum system, the output signal of described single-chip minimum system is sent to motor driver through photoelectric coupling, and the output signal of described motor driver is sent to load.
As shown in Figure 2, described single-chip minimum system adopts STC12LE2051 chip, this chip has high speed, reliable, wide voltage, anti-interference strong, low-power and the advantage such as cannot decipher, in the utility model as core parts, mainly complete the transmission of each instruction, and peripheral crystal oscillating circuit, more all parts standard clock signal is synchronously provided.
Described photoelectric coupling adopts TLP521-4 photoelectric coupling chip, its minimum isolation voltage of this chip is 2500V, and operating temperature range is wide, at-55 DEG C-100 DEG C, and low in energy consumption, usually for higher systems of required precision such as computer terminals, measuring instrument, automatic ticketings.In the utility model, be mainly used for the signal transmission between circuit, and front end and subordinate are isolated completely, thereby increased the interference between security performance, minimizing circuit, also simplified circuit design simultaneously.
The L298 motor drive module that described motor driver is connected by L297 controllor for step-by-step motor and output thereof forms, and wherein L297 controllor for step-by-step motor is mainly to provide clock signal to L298 motor drive module.L297 controllor for step-by-step motor can produce 4 phase control signals, is generally used for the bipolar and four phase single-phase stepper motors of computer-controlled two-phase, can be with single four clapping, two four clap, four phase eight beat mode control step motor.And PWM chopper circuit in chip can regulate the electric current in stepping motor winding under switching mode.This chip has also adopted the I2L technology of the analog/digital compatibility of SGS company, uses the supply voltage of 5V, all the connection of signals all with TFL/CMOS or open-collector transistor compatibility, the scope of application is wider; L298 motor drive module is mainly as the special driving chip of stepping motor, inside comprises 4 channel logic drive circuits, can drive 2 two-phases or 1 four phase step motor simultaneously, and inner have the high voltage of two H-Bridge, a large electric current bridge driver of enjoying a double blessing, and maximum can be driven into the stepping motor of 46V 2A.In the utility model, L297 controllor for step-by-step motor, mainly by the control signal of passing through single-chip microcomputer and come, is supplied with L298 motor drive module in the mode of sequential, and passes through the rotating of OUT1, OUT2, OUT3, OUT4 control step motor.
Above-described is only a preferred embodiment of the present utility model, can not limit the scope that the utility model is implemented, and every equalization of doing according to the utility model claim changes and decorates, and all should still belong in the scope that the utility model contains.
Claims (4)
1. a motor driver, it is characterized in that: include power circuit, reset circuit, single-chip minimum system, photoelectric coupling and motor driver, the output signal of described power circuit is transferred to reset circuit and single-chip minimum system, the output signal of described reset circuit is transferred to single-chip minimum system, the output signal of described single-chip minimum system is sent to motor driver through photoelectric coupling, and the output signal of described motor driver is sent to load.
2. a kind of motor driver according to claim 1, its feature exists: described single-chip minimum system adopts STC12LE2051 chip.
3. a kind of motor driver according to claim 1 and 2, its feature exists: described photoelectric coupling adopts TLP521-4 photoelectric coupling chip.
4. a kind of motor driver according to claim 1 and 2, its feature exists: the L298 motor drive module that described motor driver is connected by L297 controllor for step-by-step motor and output thereof forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380804.4U CN204013304U (en) | 2014-07-11 | 2014-07-11 | A kind of motor driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380804.4U CN204013304U (en) | 2014-07-11 | 2014-07-11 | A kind of motor driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204013304U true CN204013304U (en) | 2014-12-10 |
Family
ID=52053239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420380804.4U Expired - Fee Related CN204013304U (en) | 2014-07-11 | 2014-07-11 | A kind of motor driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204013304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109634165A (en) * | 2018-11-15 | 2019-04-16 | 南宁学院 | A kind of drive control circuit based on STC single-chip microcontroller laser engraving machine and writing machine |
-
2014
- 2014-07-11 CN CN201420380804.4U patent/CN204013304U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109634165A (en) * | 2018-11-15 | 2019-04-16 | 南宁学院 | A kind of drive control circuit based on STC single-chip microcontroller laser engraving machine and writing machine |
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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: 20141210 Termination date: 20150711 |
|
| EXPY | Termination of patent right or utility model |