CN206060601U - Motor drive interface conversion module - Google Patents
Motor drive interface conversion module Download PDFInfo
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- CN206060601U CN206060601U CN201620959618.5U CN201620959618U CN206060601U CN 206060601 U CN206060601 U CN 206060601U CN 201620959618 U CN201620959618 U CN 201620959618U CN 206060601 U CN206060601 U CN 206060601U
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Abstract
The utility model relates to a motor drive interface conversion module, include: the signal detection circuit is used for detecting that a driving signal of the stepping motor driving interface is converted into a signal sequence and then is input into the MCU controller; the direct current motor driving circuit is used for driving and controlling the direction of the direct current motor; the position and speed detection circuit is used for detecting the speed and the position of the direct current motor and inputting a position and speed detection signal to the MCU controller; the main current backflow circuit is used for enabling the current of the direct current motor to flow back to the stepping motor driving interface; and the MCU controller is used for analyzing the driving signal of the stepping motor, judging the driving direction and speed of the stepping motor, controlling the backflow of the main current backflow circuit and controlling the synchronization of the driving of the DC motor and the stepping motor. The utility model discloses a by the complete transparent conversion of unipolar step motor drive interface to brush direct current motor drive interface, can not only realize direct current motor direction control, can realize speed and position control moreover.
Description
Technical field
This utility model belongs to motor interface switch technology field in financial automation services terminal, and in particular to one kind is used for
By two-phase unipolarity step motor drive interface conversion into brushed DC motor driving interface Motor drive interface modular converter.
Background technology
Substantial amounts of motor is applied in cash handling device (paper money counter, circulator, cleaning-sorting machine etc.) is used for the driving of banknote.
The more commonly used is motor, and in the case of out-of-step free, the position control of motor and speed controlling do not exist accumulative
Error, thus the position to banknote and speed are easy in cash handling device carries out precise control.So in early stage design,
Control mainboard is generally drive mechanism and provides step motor drive interface.In addition, it is contemplated that the needs of functions of the equipments upgrading later,
Control mainboard is also possible to reserve some step motor drive interfaces.But, if some apparatus assemblies of later stage have carried out structure liter
Level and cause motor to change, if carrying out the redesign of master board and exploitation, exist very high Costco Wholesale and
Time cost, and there is structure and the compatibility issue on circuit.
Utility model content
The purpose of this utility model is to solve above-mentioned technical problem and provide a kind of for the stepping of two-phase unipolarity is electric
Machine driving interface is converted into the Motor drive interface modular converter of brushed DC motor driving interface, and which realizes and is walked by unipolarity
Fully transparent conversion of the stepper motor driving interface to brushed DC motor driving interface, can not only realize the direction control of direct current generator
System, and speed controlling and position control can be realized.
For achieving the above object, this utility model is adopted the following technical scheme that：
A kind of Motor drive interface modular converter, including：
Signal deteching circuit, is connected with step motor drive interface and MCU controllers respectively, for detecting stepping electricity
The drive signal of machine driving interface is converted into signal sequence and is input to MCU controllers；
Direct current motor drive circuit, is connected with DC motor Driver interface and MCU controllers, respectively for unidirectional current
The driving of machine and direction controlling；
Position and speed detects circuit, is connected with MCU controllers, for detecting speed and the position by position of direct current generator
Put speed detection signal and be input to MCU controllers；
Principal current return curcuit, be connected between direct current motor drive circuit and step motor drive interface and with MCU controllers
It is connected, for making direct current generator electric current Jing DC motor Driver interfaces, direct current motor drive circuit be back to motor drive
Mobile interface；
MCU controllers, for the step motor drive signal resolution that detects to signal deteching circuit to judge motor
Driving direction and speed, the backflow to the principal current return curcuit are controlled and are controlled according to position and speed detection signal
Direct current generator is synchronous with stepper motor driven.
This utility model is realized by unipolarity step motor drive interface to the complete of brushed DC motor driving interface
Transparent translation, can not only realize the direction controlling of direct current generator, and can realize speed controlling and position control.
Description of the drawings
Fig. 1 is the system construction drawing of the Motor drive interface modular converter that this utility model is provided；
Fig. 2 is a kind of circuit diagram of signal deteching circuit that this utility model is provided；
Fig. 3 is a kind of circuit diagram of direct current motor drive circuit that this utility model is provided；
Fig. 4 is the circuit diagram that a kind of position and speed that this utility model is provided detects circuit；
Fig. 5 is a kind of circuit diagram of principal current return curcuit that this utility model is provided；
Fig. 6 is the circuit diagram of a kind of MCU controllers that this utility model is provided and peripheral circuit.
Specific embodiment
Below, substantive distinguishing features of the present utility model and advantage are further described with reference to example, but this practicality is new
Type is not limited to listed embodiment.
It is shown in Figure 1, a kind of Motor drive interface modular converter, including：
Signal deteching circuit, is connected with step motor drive interface and MCU controllers respectively, for detecting stepping electricity
The drive signal of machine driving interface is converted into signal sequence and is input to MCU controllers, and stepping electricity is judged Jing after the process of MCU controllers
Machine driving direction and speed；
Direct current motor drive circuit, is connected with DC motor Driver interface and MCU controllers, respectively for unidirectional current
The driving of machine and direction controlling；
Position and speed detects circuit, is connected with MCU controllers, for detecting speed and the position by position of direct current generator
Put speed detection signal and be input to MCU controllers, realize synchronous with stepper motor driven；
Principal current return curcuit, be connected between direct current motor drive circuit and step motor drive interface and with MCU controllers
It is connected, for making direct current generator electric current Jing DC motor Driver interfaces, direct current motor drive circuit be back to motor drive
Mobile interface, even if direct current generator current reflux is to stepper motor driving circuit；
MCU controllers, for the step motor drive signal resolution that detects to signal deteching circuit to judge motor
Driving direction and speed, the backflow to the principal current return curcuit are controlled and are controlled according to position and speed detection signal
Direct current generator is synchronous with stepper motor driven.
This utility model is the circuit module that can freely convert Motor drive interface, is capable of achieving the change of Motor drive interface
Change, and this conversion is fully transparent for master controller, it can be considered as a stepping by master controller in other words
Motor, and actually drive is a brushed DC motor.
This utility model is realized by unipolarity step motor drive interface to the complete of brushed DC motor driving interface
Transparent translation, can not only realize the direction controlling of direct current generator, and can realize speed controlling and position control.
Used as one embodiment, the signal deteching circuit can adopt circuit as shown in Figure 2, including four audions,
The grounded emitter of audion, colelctor electrode connect respectively AP_S I G, AN_S I G, BP_S I G, BN_S I G and with pull-up electricity
Resistance former-wound coil connects, and base stage meets stepper drive interface AP respectively, and AN, BP, BN, pull-up resistor former-wound coil are connect with stepper drive
Mouth AP, AN, BP, BN connect, as shown in Figure 2.
Unipolarity motor is that negative pole drives, and during normal work, a termination power 24V of motor coil is another
Termination driving interface AP, AN, BP, BN.But there is no motor in this utility model, thus adopt pull-up resistor artificial line
Circle.When step motor drive works, the square-wave signal that Vpp is 24V can be collected herein, then signal electricity is realized by audion
The conversion of pressure, enters eventually into MCU controllers.When step motor drive works, step motor drive interface in turn by AP,
AN, BP, N are opened, and are realized which arrives the conducting of Power Groud, thus can be collected the square-wave signal of Vpp=24V herein, then by three
Pole pipe realizes the conversion of signal voltage, is finally collected by MCU.In full step two-phase drive pattern, if current turn on for AP,
If next step is BP conductings, to rotate forward, if next step is BN conductings, to rotate backward.Additionally, general next
Say, full step correspondence motor shaft rotates 1.8 degree and single step correspondence motor rotates 0.9 degree, thus can determine whether the target velocity for driving.
Used as an embodiment, the direct current motor drive circuit can adopt circuit shown in Fig. 3, using PMOS and NMOS groups
Into full bridge driving circuit, driving and the direction controlling of direct current generator, including two PMOS, respectively Q4A, Q5A are realized, two
NMOS, respectively Q4B, Q5B, wherein, Q4A is connected with Q5A and is connected MOTOR+, and Q4B is connected with Q5B and is connected MOTOR-, Q5B
After being connected with Q5A by RSGND connect 2 feet of MOTOR_G, Q5B and Q5A, 4 feet distinguish after connecting resistance R191, R192 ground connection and point
INR, INL end, including two audions V15, V16, audion V15 grounded emitters, colelctor electrode Jing resistance R59 and Q4A are not met
4 feet connect, 4 feet of Q4A are connected with 3 feet of Q4A, 1 foot of Q4B through resistance R57, resistance R57 series resistor R58, resistance
R58 connects with 2 feet of Q4B and resistance R60 connects, and resistance R60 connects the colelctor electrode of V16, the grounded emitter of V16；Resistance R57
24 volts of voltage ends are connect by electric fuse F4 between resistance R58, is grounded by electric capacity C74 between electric fuse F4 and 24 volts of voltage ends；
The base stage of audion V16 meets electric capacity C90, resistance R56 and resistance R55, and after electric capacity C90 is in parallel with resistance R56, INR ends are connected,
The resistance R55 other ends are grounded；The base stage connection electric capacity C89 of audion V15, resistance R53, resistance R54, resistance R53 and electric capacity C89
Parallel connection is followed by INL ends, resistance R54 other ends ground connection.
Rotating as direct current generator is realized, so adopting H bridge type drive circuit, as INL, for high level, INR is
During low level, the PMOS and NMOS conducting of upper left bridge arm and bottom right bridge arm, electric current flow to MOTOR- from MOTOR+.Conversely, electric current
MOTOR+ is flowed to from MOTOR-, so as to realize the control of motor drive direction.In addition INL and INR can be by the way of PWM pulse-width controlleds
Realize the adjustment of motor speed
Used as one embodiment, the position and speed detection circuit can adopt circuit as shown in Figure 4, by B02B-
The signal of collection is sent to MCU controllers, 1 foot and 2 feet electricity in parallel by the 2 feet connection U_SIG feet of XASK-1 contact pin J22
The connection of resistance R122, R123 and VCC ends, 4 feet ground connection.
Wherein, position and speed detection adopts raster pattern code-disc, with the infrared U-shaped sensor of unification, by position and speed
Signal is converted into the signal of telecommunication and is sent to MCU controllers.When blocking, signal is pulled upward to power supply by resistance, and when not blocking, letter
Number it is forced to be pulled down to ground, so as to realize for position and rate signal being converted into the signal of telecommunication.
Used as one embodiment, the principal current return curcuit can adopt circuit shown in Fig. 5, including four NMOS tubes：
Q8A、Q8B、Q9A、Q9B；Connect the positive pole of current of electric respectively and drive negative pole AP, AN, BP, BN, wherein, the termination AP of Q8B two and
AP_CTL, Q8A two terminate AN and the termination BP of AN_CTL, Q9B two and the termination BN and BN_CTL of BP_CTL, Q9A two, and 3 feet of Q8B
3 feet of 1 foot, Q9B, 1 foot of Q9A with Q8A are connected MOTOR_G feet after connecting, and each NMOS tube simultaneously passes through a resistance eutral grounding,
Such as resistance R91-R94.
Motor interface does not provide Power Groud, and it provides only electric current positive pole and drives negative pole AP, AN, BP, BN, so
The electric current of direct current generator finally need to be back to the Power Groud of mainboard by the negative pole that drives of motor interface.And motor
Drive negative pole to be frequent changes in normal work, thus this utility model adopts four NMOS, under the control of MCU controllers
Realization is turned in turn, realizes the backflow of direct current generator electric current.
Used as one embodiment, the MCU adopts general 8 or 16 single-chip microcomputers, is mainly used in gathering motor
Driving interface signal, controls dutycycle PWM of direct current motor drive circuit, detects position and the speed of direct current generator, control master
The NMOS conductings of current reflux circuit, finally realize the control logic of system.The circuit ginseng of the MCU controllers and peripheral circuit
As shown in Figure 6.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (5)
1. a kind of Motor drive interface modular converter, it is characterised in that include：
Signal deteching circuit, is connected with step motor drive interface and MCU controllers respectively, for detecting that motor drives
The drive signal of mobile interface is converted into signal sequence and is input to MCU controllers；
Direct current motor drive circuit, is connected with DC motor Driver interface and MCU controllers, respectively for direct current generator
Drive and direction controlling；
Position and speed detect circuit, be connected with MCU controllers, for detect direct current generator speed and position and by position speed
Degree detection signal is input to MCU controllers；
Principal current return curcuit, is connected between direct current motor drive circuit and step motor drive interface and is connected with MCU controllers
Connect, for making direct current generator electric current Jing DC motor Driver interfaces, direct current motor drive circuit be back to step motor drive and connect
Mouthful；
MCU controllers, for the step motor drive signal resolution that detects to signal deteching circuit to judge step motor drive
Direction and speed, the backflow to the principal current return curcuit are controlled and control direct current according to position and speed detection signal
Motor is synchronous with stepper motor driven.
2. Motor drive interface modular converter according to claim 1, it is characterised in that the direct current motor drive circuit is adopted
Use full bridge driving circuit.
3. Motor drive interface modular converter according to claim 2, it is characterised in that the full bridge driving circuit is H-shaped
Full bridge driving circuit.
4. Motor drive interface modular converter according to claim 3, it is characterised in that the position and speed detection circuit connects
Connect raster pattern code-disc and infrared sensor.
5. the Motor drive interface modular converter according to any one of claim 1-4, it is characterised in that the MCU controllers
For 8 or 16 single-chip microcomputers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620959618.5U CN206060601U (en) | 2016-08-26 | 2016-08-26 | Motor drive interface conversion module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620959618.5U CN206060601U (en) | 2016-08-26 | 2016-08-26 | Motor drive interface conversion module |
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| Publication Number | Publication Date |
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| CN206060601U true CN206060601U (en) | 2017-03-29 |
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| CN201620959618.5U Active CN206060601U (en) | 2016-08-26 | 2016-08-26 | Motor drive interface conversion module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301112A (en) * | 2016-08-26 | 2017-01-04 | 恒银金融科技股份有限公司 | Motor drive interface conversion module |
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2016
- 2016-08-26 CN CN201620959618.5U patent/CN206060601U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301112A (en) * | 2016-08-26 | 2017-01-04 | 恒银金融科技股份有限公司 | Motor drive interface conversion module |
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