CN204270108U - Step motor driving governor and step motor driving control system - Google Patents
Step motor driving governor and step motor driving control system Download PDFInfo
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- CN204270108U CN204270108U CN201420771305.8U CN201420771305U CN204270108U CN 204270108 U CN204270108 U CN 204270108U CN 201420771305 U CN201420771305 U CN 201420771305U CN 204270108 U CN204270108 U CN 204270108U
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- step motor
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Abstract
The utility model discloses a kind of step motor driving governor and step motor driving control system, this driving governor comprises cpu chip, CAN interface, motion control chip, step motor driving chip and power interface; Power interface is electrically connected cpu chip, CAN interface, motion control chip and step motor driving chip respectively, cpu chip is electrically connected CAN interface, motion control chip and step motor driving chip respectively, motion control chip is also electrically connected step motor driving chip, CAN step motor driving governor also comprises the power stage interface for being electrically connected motor, and power stage interface is corresponding is electrically connected to step motor driving chip.By above-mentioned embodiment, its hardware configuration is simple, and cost is lower, and can be applicable to the more occasion of step motor usage quantity.
Description
Technical field
The utility model relates to motion control apparatus technical field, particularly relates to a kind of step motor driving governor and step motor driving control system.
Background technology
At present, in prior art, traditional stepper motor drives functional equivalent is in pulse power amplifier, and the realization of motion control needs can form complete kinetic control system by with the PLC of high-speed pulse output point or motion control board.Like this for the equipment using multiple step motor, system architecture is very numerous and diverse, cost increase.
And, the maximum attachable step motor quantity of this kinetic control system limits by the port number of PLC pulse way or motion control card, the system of usual employing transmission driver is maximum connects 16 step motor, is not suitable for a fairly large number of occasion of system step motor.
Utility model content
The utility model provides a kind of step motor driving governor and step motor driving control system for solving the problems of the technologies described above, and its hardware configuration is simple, and cost is lower, and can be applicable to the more occasion of step motor usage quantity.
For solving the problems of the technologies described above, the utility model provides a kind of step motor driving governor, comprising: cpu chip, CAN interface, motion control chip, step motor driving chip and power interface; Wherein, described power interface is electrically connected described cpu chip, described CAN interface, described motion control chip and described step motor driving chip respectively, described cpu chip is electrically connected described CAN interface, described motion control chip and described step motor driving chip respectively, described motion control chip is also electrically connected described step motor driving chip, described CAN step motor driving governor also comprises the power stage interface for being electrically connected motor, and described power stage interface is corresponding is electrically connected to described step motor driving chip.
Further, described motion control chip is step motor microcontroller.
Further, described motion control chip comprises three output terminals, and each output terminal can be electrically connected a described step motor driving chip respectively.
Further, described cpu chip is all connected by SPI with between described motion control chip and described step motor driving chip.
The step motor driving governor of the utility model embodiment has following beneficial effect: step motor driving governor comprises cpu chip, CAN interface, motion control chip, step motor driving chip and power stage interface, its hardware configuration is simple, and cost is lower; CAN can be utilized to make one or more step motor driving governor all be connected to CAN, can be applicable to the occasion of multiple driving governor concurrent working, systemic-function expands convenient, is beneficial to reduction system cost.In addition, because CAN has long apart from jamproof function at a high speed, each step motor driving governor reaction is fast, working stability.
For solving the problems of the technologies described above, the utility model also provides a kind of step motor driving control system, comprising: the step motor driving governor as described in above-mentioned any one embodiment, also comprises: host computer and converter; Described host computer is electrically connected with described converter, and described converter is electrically connected with described CAN interface.
Further, described power stage interface comprises the first brachium pontis and the second brachium pontis, and described first brachium pontis, described second brachium pontis comprise first, second, third and the 4th totally four MOSFET pipe respectively; In described first brachium pontis, described first, second, third and the 4th the grid of MOSFET pipe be all electrically connected to described step motor driving chip, the drain electrode of first, second MOSFET pipe described is electrically connected to each other, the drain electrode of described 3rd, the 4th MOSFET pipe is also electrically connected to each other, the source electrode of described first, the 3rd MOSFET pipe is electrically connected reference voltage respectively, further, the source electrode of described second, the 4th MOSFET pipe is electrically connected to each other; In described second brachium pontis, described first, second, third and the 4th the grid of MOSFET pipe be all electrically connected to described step motor driving chip, the drain electrode of first, second MOSFET pipe described is electrically connected to each other, the drain electrode of described 3rd, the 4th MOSFET pipe is also electrically connected to each other, the source electrode of described first, the 3rd MOSFET pipe is electrically connected to each other, further, the source electrode of described second, the 4th MOSFET pipe ground connection respectively.
Further, described step motor driving control system comprises step motor; Described step motor is electrically connected described power stage interface.
Further, described step motor comprises the primary importance control coil and second place control coil that control described step motor self work; Wherein, between the drain electrode that the positive pole of described primary importance control coil is electrically connected on first, second MOSFET pipe in described first brachium pontis, negative electricity is connected between the drain electrode of the 3rd, the 4th MOSFET pipe in described first brachium pontis, and between the drain electrode that the positive pole of described second place control coil is electrically connected on first, second MOSFET pipe in described second brachium pontis, negative electricity is connected between the drain electrode of the 3rd, the 4th MOSFET pipe in described second brachium pontis.
Further, be electrically connected between described host computer with described converter by RS232 cable, described converter is electrically connected by CAN with described CAN interface.
Further, described step motor driving control system also comprises power supply, and described power supply is electrically connected with described power interface.
The step motor driving control system of the utility model embodiment has following beneficial effect: CAN can be utilized to be electrically connected the CAN interface of multiple different step motor driving governor, whole network only needs two lines just can parallel join multiple stage step motor driving governor, multiple stage step motor independent work can be driven, its structure is simple, and cost is lower.In addition, because CAN has long apart from jamproof function at a high speed, each step motor driving governor reaction is fast, working stability.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of the utility model embodiment step motor driving control system.
Embodiment
Below in conjunction with drawings and embodiments, the utility model is described in detail.
Consult Fig. 1, the step motor driving control system 1 of the utility model embodiment, comprise step motor driving governor 2, host computer 3 and converter 4.Wherein, host computer 3 can be PLC or PC, and it is electrically connected converter 4, is specifically connected with converter 4 by RS232 cable, and converter 4 is electrical connection step motor driving governor 2 further.
Specifically, comprise can the cpu chip 21 of integrated setting, CAN interface 22, motion control chip 23, step motor driving chip 24 and power interface 26 for this step motor driving governor 2.This cpu chip 21 can select 32 embedded high-performance micro-chip processors.
Power interface 26 is electrically connected cpu chip 21, CAN interface 22, motion control chip 23 and step motor driving chip 24 respectively, cpu chip 21 is electrically connected CAN interface 22, motion control chip 23 and step motor driving chip 24 respectively, motion control chip 23 is also electrically connected step motor driving chip 24, CAN step motor driving governor 2 also comprises the power stage interface 25 for being electrically connected motor, and power stage interface 25 is corresponding is electrically connected to step motor driving chip 24.
This CAN interface 22 is electrically connected converter 4, this converter 4 is electrically connected especially by CAN (comprising CANH, CANL), this CAN interface 22 for pass on host computer 3 send motion control instruction (as setting target location, travelling speed etc.) to cpu chip 21, or, for the current real time kinematics status information (as current location, present speed etc.) of loopback step motor driving chip 24 to host computer 3.The RS232 instruction transformation of host computer 3 can be become the instruction of CAN protocol and can high speed long-distance control CAN driver by RS232-CAN converter 4, user is made only to need a converter 4, just can control 100 even more step motor driving governors 2, and then independently can be controlled to the step motor 6 of multiple.
This cpu chip 21 generates corresponding controling parameters according to the motion control instruction obtained and is sent to motion control chip 23 and step motor driving chip 24, and this motion control chip 23 generates corresponding stepping pulse signal and direction signal according to controling parameters and is sent to step motor driving chip 24, further, pulse signal and direction signal are converted to control signal that step motor drives and export power stage interface 25 to and then drive and be connected to the motor operations of power stage interface 25 by step motor driving chip 24.
This motion control chip 23 is step motor 6 microcontrollers 2, and this motion control chip 23 is maximum supports 64 segmentations.Concrete, motion control chip 23 comprises three output terminals, each output terminal can be electrically connected a step motor driving chip 24 respectively, certainly, the corresponding power stage interface 25 of each step motor driving chip 24 independently carries out work can control each step motor 6, can change at any time online with the target location and travelling speed that make each step motor 6.Wherein, this motion control chip 23 comprises two independently four line Serial Peripheral Interface (SPI)s, one communicates with cpu chip 21, another step motor driving chip 24 be connected with one to three daisy chain type connects, concrete, this motion control chip 23 is connected with this step motor driving chip 24 with direction interface by step-by-step impulse.In above-described embodiment, cpu chip 21 and between motion control chip 23 and step motor driving chip 24 all by SPI(Serial Peripheral Interface, Serial Peripheral Interface (SPI)) connect.Wherein, because motion control function is a hard real time task, in tradition step motor driving governor, motion control function is a very large burden for cpu chip, in step motor driving governor 2 of the present utility model, all motion control functions have all been come by motion control chip 23, host computer 3 needs to send and receive few data (such as only needing to send target location), and the step-by-step impulse that can produce accurate timing by motion control chip 23 carrys out the motion of control step motor 6, so just greatly can alleviate the burden of host computer 3, reserve the more sufficient time to host computer 3 and perform other task.
Further, step motor driving chip 24 is two groups of brachium pontis (i.e. power stage interface 25) that the control signal stepping pulse signal that motion control chip 23 sends being converted to step motor driving drives 8 MOSFET pipes to form, and then drives two-phase step motor 6 to operate.Specifically, this power stage interface 25 comprises the first brachium pontis 251 and the second brachium pontis 252, first brachium pontis 251, second brachium pontis 252 and comprises first, second, third and the 4th totally four MOSFET pipe 2511-2514(2521-2524 respectively); In first brachium pontis 251, first, second, third and the 4th the grid of MOSFET pipe 2511-2514 be all electrically connected to step motor driving chip 24, the drain electrode of first, second MOSFET pipe 2511,2512 is electrically connected to each other, three, the drain electrode of the 4th MOSFET pipe 2513,2514 is also electrically connected to each other, the first, the source electrode of the 3rd MOSFET pipe 2511,2513 is electrically connected reference voltage respectively, further, the source electrode of the second, the 4th MOSFET pipe 2512,2514 is electrically connected to each other; In second brachium pontis 252, first, second, third and the 4th the grid of MOSFET pipe 2521-2524 be all electrically connected to step motor driving chip 24, the drain electrode of first, second MOSFET pipe 2521,2522 is electrically connected to each other, three, the drain electrode of the 4th MOSFET pipe 2523,2524 is also electrically connected to each other, the first, the source electrode of the 3rd MOSFET pipe 2521,2523 is electrically connected to each other, further, the source electrode of the second, the 4th MOSFET pipe 2522,2524 ground connection respectively.
During use, step motor 6 is electrically connected to power stage interface 25.Concrete, step motor 6 comprises primary importance control coil 61 and the second place control coil 62 of control step motor 6 self work; Wherein, between the drain electrode that the positive pole of primary importance control coil 61 is electrically connected on first, second MOSFET pipe 2511,2512 in the first brachium pontis 251, negative electricity is connected between the drain electrode of the 3rd, the 4th MOSFET pipe 2513,2514 in the first brachium pontis 251, and between the drain electrode that the positive pole of second place control coil 62 is electrically connected on first, second MOSFET pipe 2521,2522 in the second brachium pontis 252, negative electricity is connected between the drain electrode of the 3rd, the 4th MOSFET pipe 2523,2524 in the second brachium pontis 252.
During work, cpu chip 21 sends by spi bus operational factor and the operational mode that control command revises step motor driving chip 24, wherein, step motor driving chip 24 is built-in with micro-stepping counter and the sine table of one, these stepping pulse signals and direction signal are converted to the electric current of each position control coil 61,62 of step motor 6, specifically can by reducing power consumption and heat dissipation to coolStep and the stallGuard2 optimum configurations of this step motor driving chip 24.
In above-described embodiment, step motor driving control system 1 also comprises power supply 5, and power supply 5 is electrically connected with power interface 26.Wherein, the voltage of this power supply 5 can select 24V.
The step motor driving control system 1 of the utility model embodiment has following beneficial effect: CAN can be utilized to be electrically connected the CAN interface 22 of multiple different step motor driving governor 2, whole network only needs two lines just can parallel join multiple stage step motor driving governor 2, multiple stage step motor 6 independent work can be driven, its structure is simple, and cost is lower.And, driver is increased in system because of function compared to legacy drive, need to increase motion control card, motion control calorie requirement computer has corresponding slot, if the bus slot of computer is full, cannot carry out the expansion of systemic-function, step motor driving control system 1 function of the present utility model expands convenient.In addition, because CAN has long apart from jamproof function at a high speed, each step motor driving governor 2 reacts soon, working stability; Simultaneously, this step motor driving control system 1 adopts command driven mode, host computer 3 need send the order of motion control, concrete motion control process is completed voluntarily by step motor driving governor 2, greatly can lower the burden of host computer 3 like this, and the programming of host computer 3 is more easily easy.
In an embody rule embodiment, the step motor driving control system 1 of the utility model embodiment can also comprise the scrambler of one or more connection corresponding to step motor 6, this one or more scrambler, for gathering the absolute position of corresponding step motor 6 and feeding back to motion control chip 23 and cpu chip 21 processes, facilitates this step motor driving control system 1 follow-up can comprehensively supporting location pattern and velocity mode two kinds of operational modes.
The utility model also provides a kind of step motor driving governor 2, and the description for this step motor driving governor 2 can be consulted above and Fig. 1, repeats no longer one by one herein.
The step motor driving governor 2 of the utility model embodiment has following beneficial effect: step motor driving governor 2 comprises cpu chip 21, CAN interface 22, motion control chip 23, step motor driving chip 24 and power stage interface 25, its hardware configuration is simple, and cost is lower; CAN can be utilized to make one or more step motor driving governor 2 all be connected to CAN, can be applicable to the occasion of multiple driving governor 2 concurrent working, systemic-function expands convenient, is beneficial to reduction system cost.In addition, because CAN has long apart from jamproof function at a high speed, each step motor driving governor 2 reacts soon, working stability.
These are only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a step motor driving governor, is characterized in that, comprising:
Cpu chip, CAN interface, motion control chip, step motor driving chip and power interface;
Wherein, described power interface is electrically connected described cpu chip, described CAN interface, described motion control chip and described step motor driving chip respectively, described cpu chip is electrically connected described CAN interface, described motion control chip and described step motor driving chip respectively, described motion control chip is also electrically connected described step motor driving chip, described CAN step motor driving governor also comprises the power stage interface for being electrically connected motor, and described power stage interface is corresponding is electrically connected to described step motor driving chip.
2. step motor driving governor according to claim 1, is characterized in that:
Described motion control chip is step motor microcontroller.
3. step motor driving governor according to claim 1, is characterized in that:
Described motion control chip at least comprises three output terminals, and each output terminal can be electrically connected a described step motor driving chip respectively.
4. step motor driving governor according to claim 1, is characterized in that:
Described cpu chip is all connected by SPI with between described motion control chip and described step motor driving chip.
5. a step motor driving control system, is characterized in that, comprises the step motor driving governor as described in any one of claim 1-4, also comprises:
Host computer and converter;
Described host computer is electrically connected with described converter, and described converter is electrically connected with described CAN interface.
6. step motor driving control system according to claim 5, is characterized in that:
Described power stage interface comprises the first brachium pontis and the second brachium pontis, and described first brachium pontis, described second brachium pontis comprise first, second, third and the 4th totally four MOSFET pipe respectively;
In described first brachium pontis, described first, second, third and the 4th the grid of MOSFET pipe be all electrically connected to described step motor driving chip, the drain electrode of first, second MOSFET pipe described is electrically connected to each other, the drain electrode of described 3rd, the 4th MOSFET pipe is also electrically connected to each other, the source electrode of described first, the 3rd MOSFET pipe is electrically connected reference voltage respectively, further, the source electrode of described second, the 4th MOSFET pipe is electrically connected to each other;
In described second brachium pontis, described first, second, third and the 4th the grid of MOSFET pipe be all electrically connected to described step motor driving chip, the drain electrode of first, second MOSFET pipe described is electrically connected to each other, the drain electrode of described 3rd, the 4th MOSFET pipe is also electrically connected to each other, the source electrode of described first, the 3rd MOSFET pipe is electrically connected to each other, further, the source electrode of described second, the 4th MOSFET pipe ground connection respectively.
7. step motor driving control system according to claim 6, is characterized in that:
Described step motor driving control system comprises step motor;
Described step motor is electrically connected described power stage interface.
8. step motor driving control system according to claim 7, is characterized in that:
Described step motor comprises the primary importance control coil and second place control coil that control described step motor self work;
Wherein, between the drain electrode that the positive pole of described primary importance control coil is electrically connected on first, second MOSFET pipe in described first brachium pontis, negative electricity is connected between the drain electrode of the 3rd, the 4th MOSFET pipe in described first brachium pontis, and between the drain electrode that the positive pole of described second place control coil is electrically connected on first, second MOSFET pipe in described second brachium pontis, negative electricity is connected between the drain electrode of the 3rd, the 4th MOSFET pipe in described second brachium pontis.
9. step motor driving control system according to claim 5, is characterized in that:
Be electrically connected by RS232 cable between described host computer with described converter, described converter is electrically connected by CAN with described CAN interface.
10. step motor driving control system according to claim 5, is characterized in that:
Described step motor driving control system also comprises power supply, and described power supply is electrically connected with described power interface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771305.8U CN204270108U (en) | 2014-12-09 | 2014-12-09 | Step motor driving governor and step motor driving control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420771305.8U CN204270108U (en) | 2014-12-09 | 2014-12-09 | Step motor driving governor and step motor driving control system |
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| CN204270108U true CN204270108U (en) | 2015-04-15 |
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| CN201420771305.8U Expired - Fee Related CN204270108U (en) | 2014-12-09 | 2014-12-09 | Step motor driving governor and step motor driving control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107743007A (en) * | 2017-10-20 | 2018-02-27 | 深圳市合智同科技有限公司 | The motor motion control device and its control method of a kind of CAN formula |
| CN112526938A (en) * | 2020-03-26 | 2021-03-19 | 江苏世之高智能装备有限公司 | CAN bus stepping motor driving device |
-
2014
- 2014-12-09 CN CN201420771305.8U patent/CN204270108U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107743007A (en) * | 2017-10-20 | 2018-02-27 | 深圳市合智同科技有限公司 | The motor motion control device and its control method of a kind of CAN formula |
| CN107743007B (en) * | 2017-10-20 | 2020-08-21 | 深圳市合智同科技有限公司 | CAN bus type motor motion control device and control method thereof |
| CN112526938A (en) * | 2020-03-26 | 2021-03-19 | 江苏世之高智能装备有限公司 | CAN bus stepping motor driving device |
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| 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: 20150415 Termination date: 20181209 |