CN202798578U - Multi-functional motor driver - Google Patents
Multi-functional motor driver Download PDFInfo
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- CN202798578U CN202798578U CN201220448095XU CN201220448095U CN202798578U CN 202798578 U CN202798578 U CN 202798578U CN 201220448095X U CN201220448095X U CN 201220448095XU CN 201220448095 U CN201220448095 U CN 201220448095U CN 202798578 U CN202798578 U CN 202798578U
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Abstract
The utility model discloses a multi-functional motor driver. A control module sends control signals to a control chip micro controller unit (MCU), the MCU receives feedback signals of sensor modules simultaneously, and the control signals after being processed in comprehensive mode are transmitted to a driving module to control opening and closing of a driving bridge arm to drive a corresponding target motor. The multi-functional motor driver has the advantages of being small in size, high in reliability, wide in application range, convenient to operate and low in cost.
Description
Technical field
The utility model relates to a kind of motor driver, and particularly a kind of have the various control input pattern signal, and support multiple motor-driven multi-function motor driver.
Background technology
Motor is widely used in daily production technology, and the kind of corresponding motor driver is also very various, but existing motor driver substantially all is the driving for a kind of motor.For different motors, must prepare the motor driver of a plurality of correspondences, use inconvenience and cost significantly to rise.The instruction input mode of general motor driver is more single, and substantially all is need be at the enterprising line operate of controller panel, and command content is also more single, can not fully satisfy the requirement of different users, applying working condition.In addition, the processing mode of fault is perfect not on the setting of the protective circuit of many motor drivers and the software, and does not have good human-computer interaction interface.
The utility model content
Technical problem to be solved in the utility model is that a kind of brushless motor that is integrated with will be provided, the multi-function motor driver of brshless DC motor and ac three-phase asynchronous motor type of drive.
In order to solve above technical problem, the utility model provides a kind of multi-function motor driver, control module sends a control signal to a control chip MCU, MCU receives the feedback signal from each sensor assembly simultaneously, signal is carried out after the integrated treatment control signal being sent to driver module, and control drives the target motor that cut-offs to drive correspondence of brachium pontis.
Described driver module refers to brushless motor, brshless DC motor and three kinds of motor drive modules commonly used of ac three-phase asynchronous motor.
Described control module sends a signal to control chip by wired supervisory keyboard, controlled in wireless keyboard and three kinds of modes of drive faceplate button.
Described MCU is provided with protective circuit, isolates by optocoupler, prevents that high-voltage large current from entering governor circuit; NOR gate virtual protection circuit is set prevents common conduct; and used the monitoring function that drives chip that overcurrent and under-voltage situation are carried out Real Time Monitoring; MCU detects each fault-signal in real time; the discovery fault is closed all brachium pontis; for different faults corresponding failure code is set; and the secure threshold of failure code is set, whether monitoring surpasses secure threshold, carries out corresponding fault by the LED lamp and shows.
Described MCU also is connected with display module, and power supply status, under-voltage overcurrent and virtual protection signal and wireless receiving and dispatching situation are shown by the LED lamp, also supports LCD to show.
The utility model can switch between three kinds of patterns easily for different use occasions.Three driver modules share three-phase inverting circuits, and according to the selection of different mode, that controls in a different manner the respective drive brachium pontis cut-offs to drive the target motor.
The utility model is supported the input mode of various control signal, is respectively by the motor driver panel button and directly finishes associative operation, perhaps supervisory keyboard is connected on the interface of periphery of motor driver to carry out associative operation by wired supervisory keyboard.For carrying out the long distance wireless operation, the utility model is provided with the 2.4GHz wireless communication module, and wireless communication module is controlled by 8 control chips by SPI, finishes the information interaction between motor driver and the supervisory keyboard.
The control command of the utility model support have start close, drive pattern is selected, commutation, accelerate and slow down.Wherein, startup is closed, drive pattern is selected, commutation signal can be realized by two kinds of signal types, be respectively by the peripheral circuit of correspondence input 0V or+voltage of 5V, perhaps control to the digital signal of microcontroller input 0 or 1 by the SPI mode of wireless module.Can be realized by three kinds of signal types for the control of accelerating and slow down, be respectively from peripheral circuit input 0～+ voltage of 5V, the perhaps PWM of 0～100% duty ratio, the third mode is to send 0～255 signal by the SPI mode to MCU to carry out speed governing.
The utility model is provided with comparatively perfect circuit protection mechanism for guaranteeing motor driver running safety and stability.Driver between MCU and drive circuit, used two kinds of protected modes, isolate by optocoupler, prevented that high-voltage large current from entering governor circuit, be provided with NOR gate virtual protection circuit and prevent common conduct.Use the monitoring function that drives chip that overcurrent and under-voltage situation are carried out Real Time Monitoring.In addition, MCU detects each fault-signal in real time, and the discovery fault can in time be closed all brachium pontis.Be provided with corresponding code for different faults, and be provided with the secure threshold of failure code, whether monitoring surpasses secure threshold.Outside then LED lamp by correspondence carries out corresponding fault and shows.
The utility model is provided with perfect demonstration measure, supports power supply status, under-voltage over-current signal and wireless receiving and dispatching situation to show by the LED lamp on the drive faceplate.In addition; also support LCD to show; actuator surface and Long-distance Control keyboard all leave the LCD interface; carry out communication by SPI and control chip; in real time display power supply state, the model selection of LCD module, turn to, speed bar, under-voltage overcurrent and virtual protection signal and wireless receiving and dispatching status signal, further promote man-machine interaction.
Superior effect of the present utility model is: volume is little, and reliability is high, and is applied widely, easy to operate, with low cost.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present utility model;
Fig. 2 is main control chip circuit theory diagrams of the present utility model;
Fig. 3 is the input mode circuit schematic diagram of the utility model rate signal when non-controlled in wireless;
Fig. 4 is the utility model Wireless Keyboard transmitting terminal control chip circuit theory diagrams;
Fig. 5 is driving chip schematic diagram of the present utility model;
Fig. 6 is that the utility model drives the brachium pontis schematic diagram;
Fig. 7 is the utility model current feedback signal amplifying circuit schematic diagram;
Fig. 8 is optocoupler protective circuit schematic diagram of the present utility model;
Fig. 9 is gate common conduct protective circuit schematic diagram of the present utility model;
Figure 10 is main program flow chart of the present utility model.
Embodiment
See also shown in the accompanying drawing, the utility model will be further described.
As shown in Figure 1, the utility model provides a kind of multi-function motor driver, control module sends a control signal to a control chip MCU, MCU receives the feedback signal from each sensor assembly simultaneously, signal is carried out after the integrated treatment control signal being sent to driver module, and control drives the target motor that cut-offs to drive correspondence of brachium pontis.As Fig. 2 institute---control chip is selected MC9S08AC16.MCU accepts the feedback signal from each sensor assembly simultaneously, signal is carried out after the integrated treatment control signal being transported to driver module, drive chip and select IR2130(as shown in Figure 5), drive the break-make of brachium pontis by driving chip controls, and then control the start of corresponding motor.In addition, for guaranteeing the job security of driver, and promote man-machine interaction, be provided with respectively protective circuit module and display module.
Fig. 2 is main control chip circuit theory diagrams of the present utility model.Behind driver plugged+12V voltage, the VDD of MCU is+5V, the input voltage of MCU meeting real time scan enable switch monitoring pin KBI3, the 0V table is closed, and+5V represents to open, after detecting start signal, then detect three model selection pins of KBI0, KBI1 and KBI2, respectively to brush direct current, brushless direct-current and three-phase alternating current module should be arranged, when the voltage of certain pin be+during 5V, just can activate respective modules.After entering corresponding driver module, need detect DIR mouth and AD0 mouth, represent respectively direction of rotation and rate signal.MCU according to 0V still+5V with the DIR value in the program set to 0 or put 1, AD0 mouth with 0～+ input voltage value between the 5V converts the signal of 0～255 in the driver to.In the brush direct current motor module, corresponding brachium pontis is opened, and the DIR mouth provides 0 or 1 expression direction of rotation, and 0～255 the different pieces of information that is provided by the AD0 mouth calculates corresponding duty cycle signals and is used for speed governing.In the dc brushless motor module, the DIR mouth provides 0 or 1 expression direction of rotation, 0～255 the different pieces of information that is provided by the AD0 mouth calculates corresponding duty cycle signals and is used for speed governing, and obtains brachium pontis conducting order according to signal port HALL1, HALL2 and the HALL3 of Hall element.In the driver module of ac three-phase asynchronous motor, the DIR mouth provides 0 or 1 expression direction of rotation, and 0～255 the different pieces of information that is provided by the AD0 mouth calculates the carrier frequency of SPWM ripple, and drives corresponding brachium pontis.
Described driver module refers to brushless motor, brshless DC motor and three kinds of motor drive modules commonly used of ac three-phase asynchronous motor.The utility model can switch between three kinds of patterns easily for different use occasions.Three driver modules share three-phase inverting circuits, and according to the selection of different mode, that controls in a different manner the respective drive brachium pontis cut-offs to drive the target motor.
Described control module sends a signal to control chip by wired supervisory keyboard, controlled in wireless keyboard and three kinds of modes of drive faceplate button.Provide start close, drive pattern is selected, commutation, accelerate and slow down, totally 5 kinds of control signals.
In the drive faceplate input mode, when the KBI3 mouth of pressing starting switch and will make MCU among Fig. 2 detects the signal of one+5V, model select program activates, rotary mode selects rotary switch will make 3 model selection pin KBI0, KBI1 among Fig. 2 and one of them input voltage among the KBI2 be the signal of+5V again, and MCU detects the drive pattern module that just can activate correspondence behind the corresponding signal.Then be the selection of reversing mode, the output voltage of the interface acquiescence that commutates is 0V, and after pressing change-over key, a commutation mouthful meeting is exported the voltage of one+5V to the DIR mouth of MCU, and then carries out corresponding driver.
Fig. 3 is the input mode circuit schematic diagram of the utility model rate signal when non-controlled in wireless.MCU finishes by the A/D mouth the control of acceleration and deceleration, it is the AD0 mouth among Fig. 2, the input of AD0 mouth has dual mode, the first is directly to input the PWM of 0～100% duty ratio from the external interface of driver, hold such as the PWM among Fig. 3, another kind be one of directly input stable 0～+ voltage of 5V, hold such as the AD1 among Fig. 3, a kind of mode after panel operation adopts, concrete input method is to finish by a rotating potentiometer, and the digital signal that converts the most at last 0～255 in the driver to is carried out acceleration and deceleration control.The input mode of wired keyboard and to drive the panel input mode similar is connected to the Keyboard Control end with the signaling interface of correspondence and gets final product, and also supports the input of PWM mode for this mode of speed governing, and driver is provided with special PWM connection jaws and accepts external PWM signal.
The input mode of controlled in wireless keyboard is finished by a pair of 2.4GHz wireless launcher, and the transceiving chip that adopts is nRF24L01, and the wireless module of drive side is by the control of the SPI among Fig. 2, i.e. PTE4, PTE5, PTE6 and four pins of PTE7.
Fig. 4 is the utility model Wireless Keyboard transmitting terminal control chip circuit theory diagrams.For reducing cost, reduce volume, the wireless module of keyboard transmitting terminal is by the SPI control of MC9S08QG8, i.e. PTB2 among Fig. 4, PTB3, PTB4 and four pins of PTB5.Similar on control button on the keyboard and the drive faceplate, use starting switch to send enabling signal corresponding pin PTA0, use and select knob to select 3 pattern corresponding pin PTA1, PTA2 and PTB0, other has an acquiescence to be output as the reversing switch corresponding pin PTB1 of 0V, speed-regulating signal uses the signal of potentiometer input a 0～5V to the A/D mouth, corresponding pin is AD3, is 0～255 digital quantity with voltage transitions.Array corresponding to these signals deposit in and be connected to the receiving terminal that wireless module sends to motor driver by SPI, receiving terminal receives the control core MC9S08AC16 that is transferred to driver behind the signal by SPI, with the data writing program of correspondence, control accordingly.Because wireless transmission has a verification scheme, has a checking signal after data are accepted successfully, in case send unsuccessfully, transmitting terminal can be attempted continuing to send, but will produce an interruption after surpassing the number of times that sends.The IRQ pin of only receiving the checking data wireless module can be set high, so be provided with an indicator light, comes detection signal to send success or not, the reliability of lifting operation.
Fig. 5 is the circuit theory diagrams of driving chip of the present utility model.The model that drives chip is IR2130, can be from signal input HIN1, HIN2, HIN3, LIN1, LIN2 and the LIN3 of MCU, and according to the signal of overcurrent shutdown signal receiving terminal INTRIP and under-voltage overcurrent index signal end FAULT, corresponding signal HO1, HO2, HO3, LO1, LO2 and the LO3 of output arrives and drives brachium pontis, corresponding Electric Machine Control action is finished in the switching of control brachium pontis metal-oxide-semiconductor.
Fig. 6 is that the utility model drives the brachium pontis schematic diagram.Used metal-oxide-semiconductor is NTD40N03R.Wherein P1, P2 and P3 are used for gathering the electric current that passes through on the brachium pontis, and INTRIP gathers the overcurrent shutdown signal and VSO gathers the low side feedback voltage signal.
Fig. 7 is current feedback signal amplifying circuit schematic diagram, such circuit has 3, the chip that circuit adopts is AD8200, monitoring drives the actual working state of brachium pontis when being input to CURRENT1, CURRENT2 among Fig. 1 and CURRENT3 cause for gossip after the P1 among Fig. 6, P2 and P3 electric current being amplified, realize the feedback regulation of electric current, promote the control effect.
The maximum current of the utility model output is about 30A, and maximum voltage is about 24V, the about 720W of power.This motor driver has used two kinds of protected modes between MCU and drive circuit.The first is the optocoupler protection, and the second is the gate protection.
Fig. 8 is optocoupler protective circuit schematic diagram of the present utility model.Two TLP281-4 optocouplers have been used, because mutually isolation between the optocoupler input and output, electric signal transmission has the characteristics such as one-way, thereby makes power circuit to its input good signal isolation be arranged, prevent that high-voltage large current from entering governor circuit, promote electrical isolation capabilities and antijamming capability.For example, when the voltage of PTE5 mouth when being high, output conducting, HIN1 is set low, and then the low voltage signal input can be driven chip.
Fig. 9 is gate common conduct protective circuit schematic diagram of the present utility model.Used NOR gate gate chip 7402, when the governor circuit output error make the signal of simultaneously conducting of brachium pontis upper and lower side the time, signal can be exported two low levels through optocoupler, these two low level input logic gate chips will be exported a high level, this signal of main control chip Real-Time Monitoring, if high level can be carried out the brachium pontis bolt down procedure immediately, thus the normal switch working state of guaranteed output device, prevent common conduct, avoid causing the dangerous situation of power supply short circuit.
Figure 10 is main program flow chart of the present utility model.As previously described, drive circuit uses IR2130 to drive chip, this chip can drive the under-voltage and over-current signal of brachium pontis by Real-Time Monitoring, in case occur under-voltage and overcurrent condition, as shown in Figure 5, the FAULT pin of chip can be set low, indicate the LED lamp of under-voltage overcurrent to light this moment, after the MCU of detection FAULT signal detects this signal in real time simultaneously, can make the Reflector position 1 of under-voltage overcurrent, the simultaneous faults code adds 1, closes the driving brachium pontis.After the rub-out signal that detects above-mentioned logic gates, can make logic error Reflector position 1, the simultaneous faults code adds 1, can make equally working station indicator demonstration redness and close the driving brachium pontis.After surpassing certain threshold value, the value of diagnostic trouble code can make working station indicator show red and flicker.Only have when the enable switch of driver and open, do not detect under-voltage over-current signal and logic error after, could remove diagnostic trouble code, and make working station indicator demonstration green.
The utility model has good man-machine information interaction mode, at first is that various indicator lights can show current operating state real-time and accurately, and can allow the user clearly distinguish to be and under-voltagely cross flow problem, or the logic error problem, and whether mistake surpasses threshold value.In addition, also be provided with the LCD equipment interface, what use is S6B0741 type 128X128 liquid crystal control chip, carry out communication control by SPI, can show more visually current master switch, model selection, turn to, under-voltage, the overcurrent when speed bar and various work, logic error and wireless transmission status signal.
Claims (5)
1. multi-function motor driver, it is characterized in that: control module sends a control signal to a control chip MCU, MCU receives the feedback signal from each sensor assembly simultaneously, signal is carried out after the integrated treatment control signal being sent to driver module, and control drives the target motor that cut-offs to drive correspondence of brachium pontis.
2. multi-function motor driver according to claim 1, it is characterized in that: described driver module refers to brushless motor, brshless DC motor and three kinds of motor drive modules commonly used of ac three-phase asynchronous motor.
3. multi-function motor driver according to claim 1, it is characterized in that: described control module sends a signal to control chip by wired supervisory keyboard, controlled in wireless keyboard and three kinds of modes of drive faceplate button.
4. multi-function motor driver according to claim 1, it is characterized in that: described MCU is provided with protective circuit, isolates by optocoupler, prevents that high-voltage large current from entering governor circuit; NOR gate virtual protection circuit is set prevents common conduct; and used the monitoring function that drives chip that overcurrent and under-voltage situation are carried out Real Time Monitoring; MCU detects each fault-signal in real time; the discovery fault is closed all brachium pontis; for different faults corresponding failure code is set; and the secure threshold of failure code is set, whether monitoring surpasses secure threshold, carries out corresponding fault by the LED lamp and shows.
5. multi-function motor driver according to claim 1, it is characterized in that: described MCU also is connected with display module, and power supply status, under-voltage overcurrent and virtual protection signal and wireless receiving and dispatching situation are shown by the LED lamp, also supports LCD to show.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220448095XU CN202798578U (en) | 2012-09-05 | 2012-09-05 | Multi-functional motor driver |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220448095XU CN202798578U (en) | 2012-09-05 | 2012-09-05 | Multi-functional motor driver |
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| CN202798578U true CN202798578U (en) | 2013-03-13 |
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| CN201220448095XU Expired - Lifetime CN202798578U (en) | 2012-09-05 | 2012-09-05 | Multi-functional motor driver |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795299A (en) * | 2013-08-09 | 2014-05-14 | 科蒂斯技术（苏州）有限公司 | Multi-path soft-starting system for electric vehicle |
| CN103825510A (en) * | 2014-02-14 | 2014-05-28 | 中国航天时代电子公司 | Small-size digital direct current servo motor driving circuit |
| CN104158448A (en) * | 2014-08-08 | 2014-11-19 | 广州新科佳都科技有限公司 | Drive circuit compatible with brush and brushless large power DC motors |
| CN109981010A (en) * | 2017-12-28 | 2019-07-05 | 沈阳新松机器人自动化股份有限公司 | A kind of motor driven systems and method |
-
2012
- 2012-09-05 CN CN201220448095XU patent/CN202798578U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795299A (en) * | 2013-08-09 | 2014-05-14 | 科蒂斯技术（苏州）有限公司 | Multi-path soft-starting system for electric vehicle |
| CN103825510A (en) * | 2014-02-14 | 2014-05-28 | 中国航天时代电子公司 | Small-size digital direct current servo motor driving circuit |
| CN103825510B (en) * | 2014-02-14 | 2016-05-04 | 中国航天时代电子公司 | A kind of Miniature digital DC servo motor drive circuit |
| CN104158448A (en) * | 2014-08-08 | 2014-11-19 | 广州新科佳都科技有限公司 | Drive circuit compatible with brush and brushless large power DC motors |
| CN109981010A (en) * | 2017-12-28 | 2019-07-05 | 沈阳新松机器人自动化股份有限公司 | A kind of motor driven systems and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |