CN203788207U - Two-phase hybrid stepping motor drive and control system - Google Patents
Two-phase hybrid stepping motor drive and control system Download PDFInfo
- Publication number
- CN203788207U CN203788207U CN201420015385.4U CN201420015385U CN203788207U CN 203788207 U CN203788207 U CN 203788207U CN 201420015385 U CN201420015385 U CN 201420015385U CN 203788207 U CN203788207 U CN 203788207U
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- stepping motor
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Abstract
The utility model provides a two-phase hybrid stepping motor drive and control system. In the current industrial applications, most of drivers are large in size and poor in generality, and require multiple external power supplies, thereby being high in cost. The system provided by the utility model comprises a controller (1). The controller is connected with an over-current protection circuit (2), a half-current locking circuit (3), a phase current setting circuit (4), an A-phase power drive circuit (5), a B-phase power drive circuit (6), an optocoupler isolation circuit (7), a high-frequency DC-DC conversion circuit (8) and a stepping motor (9). The stepping motor is connected with the A-phase power drive circuit, the B-phase power drive circuit and the over-current protection circuit. The half-current locking circuit is connected with the phase current setting circuit. The high-frequency DC-DC conversion circuit is connected with the A-phase power drive circuit. The two-phase hybrid stepping motor drive and control system is used for controlling the stepping motor.
Description
technical field:
the utility model relates to a kind of improvement of hardware components of two-phase hybrid stepping motor driving control system.
background technology:
stepping motor is the special synchronous motor by pulse controlling run, and each supplies electric pulse correspondence, all produces the step motion of a constant basis, can be angular displacement or displacement of the lines.Stepping motor can be realized signal conversion, is the executive component of extensive use in numerical control system.It has certain open loop control precision, and step pitch error is accumulation for a long time not, is easy to start, stops, rotating and speed change, with the feature such as host computer interface is simple and convenient.Along with the development of power electronic technology, control technology and motor body, stepping motor obtains application widely in various fields such as office automation, industrial automation machine, numerical controlled machineries.
stepper motor driver has also obtained very large development and improvement simultaneously.But in commercial Application, most driver volumes are larger at present, and versatility is not strong, often requires external multiple power supplies, and cost is not low.
utility model content:
the purpose of this utility model is to provide a kind of hardware components of two-phase hybrid stepping motor driving control system.
above-mentioned object realizes by following technical scheme:
a kind of two-phase hybrid stepping motor driving control system, its composition comprises: controller, described controller respectively with current foldback circuit, semi-fluid lock-in circuit, phase current initialization circuit, A phase power driving circuit, B phase power driving circuit, optical coupling isolation circuit, high-frequency DC-DC translation circuit, stepping motor connects, described stepping motor respectively with described A phase power driving circuit, described B phase power driving circuit, described current foldback circuit connects, described semi-fluid lock-in circuit is connected with described phase current initialization circuit, described high-frequency DC-DC translation circuit and described A phase power driving circuit.
described two-phase hybrid stepping motor driving control system, described controller adopts L297, and described high-frequency DC-DC translation circuit comprises PWM controller IC, and described PWM controller IC adopts SI9114A.
beneficial effect:
the utility model cost is low, volume is little, and single supply input range is at 25～85Vdc, and exporting every maximum phase current is 7A, and highly versatile is controlled simply, and reliability is high.
the utility model is taking monolithic controllor for step-by-step motor integrated circuit L297 as control core, and integrated pulsqe distributor, PWM chopper and output logic control unit etc. enrich module, make system control convenient simple.Adopt the power driving circuit of the discrete being formed by transistor and power MOS pipe to replace ic circuit, system cost is reduced, and can meet the requirement of the stepping motor that drives wide voltage, large electric current.Taking monolithic loop Current-type PWM Controller integrated circuit SI9114A as core, the high-frequency DC-DC translation circuit of design has solved the demand of the required multiple power supplies of system, has reduced system power dissipation, has reduced the volume of power circuit, and has reduced cost.
the utility model receives stepping pulse signal CP, direction signal DIR, off line signal FREE and working mode selection signal MODE, inputs to L297 by light-coupled isolation.This external system also has the functions such as the selection of phase current size, semi-fluid locking and overcurrent protection.Stepping motor control circuit is taking L297 as core.Produce three kinds of phase sequential signals by the integrated pulsqe distributor in inside, corresponding to three kinds of different working methods: half step mode; Basic step pitch, a phase energisation mode; Basic step pitch, two-phase energisation mode.Pulsqe distributor inside is 3 forward-backward counters, adds some combinational logics, produce each cycle 8 and clap Gray code clock signal, and be exactly the clock signal while partly walking working method.And in the time of basic step pitch working method, produce the clock signal that each cycle 4 is clapped.Constant current chopper control technology is the mainstream technology of current step motor control, and type of drive adopts the modes such as PWM, makes phase winding electric current in the time of low frequency or high band operation, all keep substantially constant.Because the electromagnetic torque of motor is only relevant to motor phase windings electric current, so constant current chopper control technology can ensure the mean value substantially constant of motor pull out torque.Meanwhile, the high frequency response of motor is improved, and covibration weakens.This two-phase hybrid stepping motor driver takes full advantage of the function of L297, adopts Double power driving control method.Feed back phase winding current value by sampling resistor and compare with the phase winding current peak of setting, produce drive control signal, make supply voltage be operated on off state, and then make winding current remain near the fluctuation of set point.Because supply voltage is not always to winding power supply, and burst pulse one by one just, total input energy is the voltage in each burst length and the integration of electric current product, the energy of taking from power supply significantly declines, and has reduced caloric value, has higher efficiency.
brief description of the drawings:
accompanying drawing 1 is structural representation of the present utility model.
accompanying drawing 2 is circuit theory diagrams of semi-fluid lock-in circuit of the present utility model.
embodiment:
embodiment 1:
a kind of two-phase hybrid stepping motor driving control system, its composition comprises: controller 1, described controller respectively with current foldback circuit 2, semi-fluid lock-in circuit 3, phase current initialization circuit 4, A phase power driving circuit 5, B phase power driving circuit 6, optical coupling isolation circuit 7, high-frequency DC-DC translation circuit 8, stepping motor 9 connects, described stepping motor respectively with described A phase power driving circuit, described B phase power driving circuit, described current foldback circuit connects, described semi-fluid lock-in circuit is connected with described phase current initialization circuit, described high-frequency DC-DC translation circuit and described A phase power driving circuit.
embodiment 2:
According to the two-phase hybrid stepping motor driving control system described in embodiment 1, described controller adopts L297, and described high-frequency DC-DC translation circuit comprises PWM controller IC, and described PWM controller IC adopts SI9114A.
Claims (2)
1. a two-phase hybrid stepping motor driving control system, its composition comprises: controller, it is characterized in that: described controller respectively with current foldback circuit, semi-fluid lock-in circuit, phase current initialization circuit, A phase power driving circuit, B phase power driving circuit, optical coupling isolation circuit, high-frequency DC-DC translation circuit, stepping motor connects, described stepping motor respectively with described A phase power driving circuit, described B phase power driving circuit, described current foldback circuit connects, described semi-fluid lock-in circuit is connected with described phase current initialization circuit, described high-frequency DC-DC translation circuit and described A phase power driving circuit.
2. two-phase hybrid stepping motor driving control system according to claim 1, it is characterized in that: described controller adopts L297, described high-frequency DC-DC translation circuit comprises PWM controller IC, and described PWM controller IC adopts SI9114A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015385.4U CN203788207U (en) | 2014-01-10 | 2014-01-10 | Two-phase hybrid stepping motor drive and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420015385.4U CN203788207U (en) | 2014-01-10 | 2014-01-10 | Two-phase hybrid stepping motor drive and control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203788207U true CN203788207U (en) | 2014-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420015385.4U Expired - Fee Related CN203788207U (en) | 2014-01-10 | 2014-01-10 | Two-phase hybrid stepping motor drive and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203788207U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617837A (en) * | 2014-11-28 | 2015-05-13 | 黑龙江大学 | Low-cost novel stepping motor driving device and semi-current locking method |
-
2014
- 2014-01-10 CN CN201420015385.4U patent/CN203788207U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104617837A (en) * | 2014-11-28 | 2015-05-13 | 黑龙江大学 | Low-cost novel stepping motor driving device and semi-current locking method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20170110 |