CN103795312A - Stepper motor drive circuit and stepper motor controller - Google Patents
Stepper motor drive circuit and stepper motor controller Download PDFInfo
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- CN103795312A CN103795312A CN201310737812.XA CN201310737812A CN103795312A CN 103795312 A CN103795312 A CN 103795312A CN 201310737812 A CN201310737812 A CN 201310737812A CN 103795312 A CN103795312 A CN 103795312A
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Abstract
The invention discloses a stepper motor drive circuit. An output end of an A-phase power amplification circuit is connected with an A-phase terminal of a stepper motor; an output end of a B-phase power amplification circuit is connected with a B-phase terminal of the stepper motor; an A-phase integral amplification circuit comprises an integral amplifier U4D, an integral amplifier U5D, a voltage follower U5C, and a potentiometer DR2; a B-phase integral amplification circuit comprises an integral amplifier U4C, an integral amplifier U5B, and a voltage follower U5A and a potentiometer DR1. The potentiometer DR1 and the potentiometer DR2 are adjusted to realize calibration before the stepper motor starts to work; the error of the drive circuit, which is caused by the front circuit, is eliminated; and the two voltage followers are used to detect the two-phase current of the stepper motor, and the detection results are fed back to the integral amplification circuits, thus ensuring the constant current output of the drive circuit.
Description
Technical field
The present invention relates to motor-drive circuit, relate in particular to a kind of stepper motor driving circuit.
Background technology
Stepping motor type of drive mainly contains: a, the voltage that makes to be added on motor winding by translation circuit raise with the rising of running frequency, thereby in frequency and voltage boosting territory, keeps the substantially invariable frequency and voltage boosting control of motor output torque; B, in any working range of stepping motor, in the time that motor winding energising starts, adopt high pressure energising to guarantee motor response and then reduce high-low pressure that operating voltage guarantees the normal operation of motor and drive and control fast; C, no matter stepping motor, in any operating state of low frequency, high frequency and locking, all guarantees the Double power driving that stepping motor winding current is constant; D, step angle is segmented to control, adopt the mould of vector angle is equal on vector space method to change the biphase current of stepping motor simultaneously, make the segmentation control of electric current constant amplitude running on space vector.
In prior art, though Double power driving has improved the service efficiency of motor power supply, low-frequency resonance while having suppressed motor operation, but the electromagnetic interference that copped wave causes is more serious, in subdivision drive control process, the main PWM that adopts determines current chopping control at present, because copped wave causes electromagnetic interference obvious, there is larger rush of current, be difficult to realize constant current output.
Summary of the invention
The technical problem to be solved in the present invention is, for the deficiencies in the prior art, a kind of stepper motor driving circuit is provided, wherein, realize the calibration of stepping motor before work by regulator potentiometer DR1 and potentiometer DR2, eliminate the error that front-end circuit causes this drive circuit, simultaneously, utilize two voltage followers respectively the biphase current of stepping motor to be detected, and testing result is fed back to respectively to integrating amplification circuit, thereby guarantee this drive circuit constant current output.
For solving the problems of the technologies described above, the present invention adopts following technical scheme.
A kind of stepper motor driving circuit, it includes: the A phase integral amplifying circuit and the A phase power amplification circuit that connect successively, the output of described A phase power amplification circuit is connected with the A phase terminal of stepping motor, the B phase integral amplifying circuit and the B phase power amplification circuit that connect successively, the output of described B phase power amplification circuit is connected with the B phase terminal of stepping motor, described A phase integral amplifying circuit includes integral amplifier U4D, integral amplifier U5D, voltage follower U5C and potentiometer DR2, the end of oppisite phase of described integral amplifier U4D is for input reference voltage, the in-phase end of this integral amplifier U4D is used for receiving driving signal, the output of this integral amplifier U4D outputs voltage signal to the end of oppisite phase of integral amplifier U5D, the in-phase end of described integral amplifier U5D is by resistance R 48 ground connection, the output of this integral amplifier U5D is connected in the input of A phase power amplification circuit, the input of described voltage follower U5C is held with the A that the first inspection leakage resistance is connected in stepping motor mutually by the capacitance C43 connecting successively, the output of this voltage follower U5C outputs voltage signal to the end of oppisite phase of integral amplifier U5D, between two stiff ends of described potentiometer DR2, load predeterminated voltage, the voltage signal of described potentiometer DR2 brush end transfers to the end of oppisite phase of integral amplifier U5D, described B phase integral amplifying circuit includes integral amplifier U4C, integral amplifier U5B, voltage follower U5A and potentiometer DR1, the end of oppisite phase of described integral amplifier U4C is for input reference voltage, the in-phase end of this integral amplifier U4C is used for receiving driving signal, the output of this integral amplifier U4C outputs voltage signal to the end of oppisite phase of integral amplifier U5B, the in-phase end of described integral amplifier U5B is by resistance R 19 ground connection, the output of this integral amplifier U5B is connected in the input of B phase power amplification circuit, the input of described voltage follower U5A is held with the B that the second inspection leakage resistance is connected in stepping motor mutually by the capacitance C33 connecting successively, the output of this voltage follower U5A outputs voltage signal to the end of oppisite phase of integral amplifier U5B, between two stiff ends of described potentiometer DR1, load predeterminated voltage, the voltage signal of described potentiometer DR1 brush end transfers to the end of oppisite phase of integral amplifier U5B.
Preferably, between the end of oppisite phase of described integral amplifier U4D and output, be connected with resistance R parallel with one another 45 and capacitor C 44, the in-phase end of this integral amplifier U4D is by resistance R 43 ground connection, between the end of oppisite phase of described integral amplifier U5D and output, be connected with resistance R parallel with one another 47 and capacitor C 45, between the end of oppisite phase of the output of described integral amplifier U4D and integral amplifier U5D, be connected with current-limiting resistance R46, described the first inspection leakage resistance includes resistance R parallel with one another 39, resistance R 40 and resistance R 41, the input of described voltage follower U5C is also by resistance R parallel with one another 51, resistance R 52 and resistance R 53 ground connection.
Preferably, the brush end of described potentiometer DR2 is connected in the end of oppisite phase of integral amplifier U5D by resistance R 49, and the output of described voltage follower U5C is connected in the end of oppisite phase of integral amplifier U5D by resistance R 50.
Preferably, between the end of oppisite phase of described integral amplifier U4C and output, be connected with resistance R parallel with one another 17 and capacitor C 28, the in-phase end of this integral amplifier U4C is by resistance R 15 ground connection, between the end of oppisite phase of described integral amplifier U5B and output, be connected with resistance R parallel with one another 20 and capacitor C 29, between the end of oppisite phase of the output of described integral amplifier U4C and integral amplifier U5B, be connected with current-limiting resistance R18, described the second inspection leakage resistance includes resistance R parallel with one another 31, resistance R 32 and resistance R 33, the input of described voltage follower U5A is by resistance R parallel with one another 23, resistance R 24 and resistance R 25 ground connection.
Preferably, the brush end of described potentiometer DR1 is connected in the end of oppisite phase of integral amplifier U5B by resistance R 21, and the output of described voltage follower U5A is connected in the end of oppisite phase of integral amplifier U5B by resistance R 100.
Preferably, described A phase power amplification circuit includes power amplifier U7, the in-phase end of described power amplifier U7 is by resistance R 37 ground connection, this in-phase end is also connected in the output of A phase integral amplifying circuit by resistance R 34, the end of oppisite phase of described power amplifier U7 is by resistance R 35 ground connection, between its output and end of oppisite phase, be connected with feedback resistance R38, the output of this power amplifier U7 is connected in the A phase terminal of stepping motor.
Preferably, described B phase power amplification circuit comprises power amplifier U6, the in-phase end of described power amplifier U6 is by resistance R 27 ground connection, this in-phase end is also connected in the output of B phase integral amplifying circuit by resistance R 26, the end of oppisite phase of described power amplifier U6 is by resistance R 28 ground connection, between its output and end of oppisite phase, be connected with feedback resistance R29, the output of this power amplifier U6 is connected in the B phase terminal of stepping motor.
Preferably, within described integral amplifier U4D and integral amplifier U4C are integrated in chip piece, the model of this chip is LT1014DSW; Within described integral amplifier U5D, voltage follower U5C, integral amplifier U5B and pressure follower U5A are integrated in chip piece, the model of this chip is LT1014DSW.
A kind of controllor for step-by-step motor, it includes single-chip microcomputer, DA change-over circuit and drive circuit, the IO mouth of described single-chip microcomputer is connected with the digital signal port of DA change-over circuit, the voltage signal of described DA change-over circuit output transfers to drive circuit, the two-way of described drive circuit output drives signal to transfer to respectively A phase terminal and the B phase terminal of stepping motor, and described drive circuit is above-mentioned stepper motor driving circuit.
Preferably, the chip model of described single-chip microcomputer is STM32F10xCxT6, and described DA change-over circuit comprises DA transducer U3, and the chip model of described DA transducer U3 is AD5334.
In stepper motor driving circuit disclosed by the invention, the output of A phase power amplification circuit is connected with the A phase terminal of stepping motor, the output of B phase power amplification circuit is connected with the B phase terminal of stepping motor, A phase integral amplifying circuit includes integral amplifier U4D, integral amplifier U5D, voltage follower U5C and potentiometer DR2, B phase integral amplifying circuit includes integral amplifier U4C, integral amplifier U5B, voltage follower U5A and potentiometer DR1, realize the calibration of stepping motor before work by regulator potentiometer DR1 and potentiometer DR2, eliminate the error that front-end circuit causes this drive circuit, simultaneously, utilize two voltage followers respectively the biphase current of stepping motor to be detected, and testing result is fed back to respectively to integrating amplification circuit, thereby guarantee this drive circuit constant current output.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of stepper motor driving circuit.
Fig. 2 is the circuit theory diagrams of A phase integral amplifying circuit and A phase power amplification circuit.
Fig. 3 is the circuit theory diagrams of B phase integral amplifying circuit and B phase power amplification circuit.
Fig. 4 is single-chip microcomputer and peripheral circuit schematic diagram thereof.
Fig. 5 is DA transducer and peripheral circuit schematic diagram thereof.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in more detail.
The invention discloses a kind of stepper motor driving circuit, in conjunction with shown in Fig. 1 to Fig. 3, it includes:
The A phase integral amplifying circuit 3 and the A phase power amplification circuit 4 that connect successively, the output of described A phase power amplification circuit 4 is connected with the A phase terminal of stepping motor 7;
The B phase integral amplifying circuit 5 and the B phase power amplification circuit 6 that connect successively, the output of described B phase power amplification circuit 6 is connected with the B phase terminal of stepping motor 7;
Described A phase integral amplifying circuit 3 includes integral amplifier U4D, integral amplifier U5D, voltage follower U5C and potentiometer DR2, the end of oppisite phase of described integral amplifier U4D is for input reference voltage, the in-phase end of this integral amplifier U4D is used for receiving driving signal, the output of this integral amplifier U4D outputs voltage signal to the end of oppisite phase of integral amplifier U5D, the in-phase end of described integral amplifier U5D is by resistance R 48 ground connection, the output of this integral amplifier U5D is connected in the input of A phase power amplification circuit 4, the input of described voltage follower U5C is held with the A that the first inspection leakage resistance is connected in stepping motor 7 mutually by the capacitance C43 connecting successively, the output of this voltage follower U5C outputs voltage signal to the end of oppisite phase of integral amplifier U5D, between two stiff ends of described potentiometer DR2, load predeterminated voltage, the voltage signal of described potentiometer DR2 brush end transfers to the end of oppisite phase of integral amplifier U5D,
Described B phase integral amplifying circuit 5 includes integral amplifier U4C, integral amplifier U5B, voltage follower U5A and potentiometer DR1, the end of oppisite phase of described integral amplifier U4C is for input reference voltage, the in-phase end of this integral amplifier U4C is used for receiving driving signal, the output of this integral amplifier U4C outputs voltage signal to the end of oppisite phase of integral amplifier U5B, the in-phase end of described integral amplifier U5B is by resistance R 19 ground connection, the output of this integral amplifier U5B is connected in the input of B phase power amplification circuit 6, the input of described voltage follower U5A is held with the B that the second inspection leakage resistance is connected in stepping motor 7 mutually by the capacitance C33 connecting successively, the output of this voltage follower U5A outputs voltage signal to the end of oppisite phase of integral amplifier U5B, between two stiff ends of described potentiometer DR1, load predeterminated voltage, the voltage signal of described potentiometer DR1 brush end transfers to the end of oppisite phase of integral amplifier U5B.
The operation principle of above-mentioned stepper motor driving circuit is:
The A of stepping motor 7 drives after signal carries out two-stage voltage amplification through integral amplifier U4D and integral amplifier U5D successively mutually, then carries out power amplification by power amplifier U7, and the A that transfers to afterwards stepping motor 7 holds mutually.Utilize voltage follower U5C to hold mutually and examine stream the A of stepping motor 7, and be converted to after voltage signal, feed back to the end of oppisite phase of integral amplifier U5D, regulator potentiometer DR2 can further adjust the voltage of integral amplifier U5D end of oppisite phase, thereby adjusts the output voltage of integral amplifier U5D;
The B of stepping motor 7 drives after signal carries out two-stage voltage amplification through integral amplifier U4C and integral amplifier U5B successively mutually, then carries out power amplification by power amplifier U6, and the B that transfers to afterwards stepping motor 7 holds mutually.Utilize voltage follower U5A to hold mutually and examine stream the B of stepping motor 7, and be converted to after voltage signal, feed back to the end of oppisite phase of integral amplifier U5B, regulator potentiometer DR1 can further adjust the voltage of integral amplifier U5B end of oppisite phase, thereby adjusts the output voltage of integral amplifier U5B;
In said process, realize the calibration of stepping motor before work by regulator potentiometer DR1 and potentiometer DR2, eliminate the error that front-end circuit causes this drive circuit, simultaneously, utilize two voltage followers respectively the biphase current of stepping motor 7 to be detected, and testing result is fed back to respectively to integrating amplification circuit, thereby guarantee this drive circuit constant current output.
About the peripheral circuit setting of integral amplifier U4D and integral amplifier U5D, between the end of oppisite phase of described integral amplifier U4D and output, be connected with resistance R parallel with one another 45 and capacitor C 44, the in-phase end of this integral amplifier U4D is by resistance R 43 ground connection, between the end of oppisite phase of described integral amplifier U5D and output, be connected with resistance R parallel with one another 47 and capacitor C 45, between the end of oppisite phase of the output of described integral amplifier U4D and integral amplifier U5D, be connected with current-limiting resistance R46, described the first inspection leakage resistance includes resistance R parallel with one another 39, resistance R 40 and resistance R 41, the input of described voltage follower U5C is also by resistance R parallel with one another 51, resistance R 52 and resistance R 53 ground connection.The brush end of described potentiometer DR2 is connected in the end of oppisite phase of integral amplifier U5D by resistance R 49, the output of described voltage follower U5C is connected in the end of oppisite phase of integral amplifier U5D by resistance R 50.
About the peripheral circuit setting of integral amplifier U4C and integral amplifier U5B, between the end of oppisite phase of described integral amplifier U4C and output, be connected with resistance R parallel with one another 17 and capacitor C 28, the in-phase end of this integral amplifier U4C is by resistance R 15 ground connection, between the end of oppisite phase of described integral amplifier U5B and output, be connected with resistance R parallel with one another 20 and capacitor C 29, between the end of oppisite phase of the output of described integral amplifier U4C and integral amplifier U5B, be connected with current-limiting resistance R18, described the second inspection leakage resistance includes resistance R parallel with one another 31, resistance R 32 and resistance R 33, the input of described voltage follower U5A is by resistance R parallel with one another 23, resistance R 24 and resistance R 25 ground connection.The brush end of described potentiometer DR1 is connected in the end of oppisite phase of integral amplifier U5B by resistance R 21, the output of described voltage follower U5A is connected in the end of oppisite phase of integral amplifier U5B by resistance R 100.
As a kind of optimal way, described A phase power amplification circuit 4 includes power amplifier U7, the in-phase end of described power amplifier U7 is by resistance R 37 ground connection, this in-phase end is also connected in the output of A phase integral amplifying circuit 3 by resistance R 34, the end of oppisite phase of described power amplifier U7 is by resistance R 35 ground connection, between its output and end of oppisite phase, be connected with feedback resistance R38, the output of this power amplifier U7 is connected in the A phase terminal of stepping motor 7.
As a kind of optimal way, described B phase power amplification circuit 5 comprises power amplifier U6, the in-phase end of described power amplifier U6 is by resistance R 27 ground connection, this in-phase end is also connected in the output of B phase integral amplifying circuit 5 by resistance R 26, the end of oppisite phase of described power amplifier U6 is by resistance R 28 ground connection, between its output and end of oppisite phase, be connected with feedback resistance R29, the output of this power amplifier U6 is connected in the B phase terminal of stepping motor 7.
In the selected amplifier device of foregoing circuit, within described integral amplifier U4D and integral amplifier U4C are integrated in chip piece, the model of this chip is LT1014DSW; Within described integral amplifier U5D, voltage follower U5C, integral amplifier U5B and pressure follower U5A are integrated in chip piece, the model of this chip is LT1014DSW.
In order better the present invention to be combined with practical application, please refer to Fig. 1 to Fig. 5, the invention allows for a kind of controllor for step-by-step motor, it includes single-chip microcomputer 1, DA change-over circuit 2 and drive circuit, the IO mouth of described single-chip microcomputer 1 is connected with the digital signal port of DA change-over circuit 2, the voltage signal that described DA change-over circuit 2 is exported transfers to drive circuit, the two-way of described drive circuit output drives signal to transfer to respectively A phase terminal and the B phase terminal of stepping motor 7, and described drive circuit is stepper motor driving circuit as above.The digital signal that this single-chip microcomputer 1 is exported is converted to after analog voltage signal through DA change-over circuit, and the A that transfers to stepping motor 7 by stepper motor driving circuit holds mutually with B and holds mutually.The preferably STM32F10xCxT6 of chip model of this single-chip microcomputer 1, described DA change-over circuit 2 comprises DA transducer U3, the preferably AD5334 of chip model of described DA transducer U3.
In stepper motor driving circuit disclosed by the invention, the output of A phase power amplification circuit 4 is connected with the A phase terminal of stepping motor 7, the output of B phase power amplification circuit 6 is connected with the B phase terminal of stepping motor 7, A phase integral amplifying circuit 3 includes integral amplifier U4D, integral amplifier U5D, voltage follower U5C and potentiometer DR2, B phase integral amplifying circuit 5 includes integral amplifier U4C, integral amplifier U5B, voltage follower U5A and potentiometer DR1, realize the calibration of stepping motor before work by regulator potentiometer DR1 and potentiometer DR2, eliminate the error that front-end circuit causes this drive circuit, simultaneously, utilize two voltage followers respectively the biphase current of stepping motor 7 to be detected, and testing result is fed back to respectively to integrating amplification circuit, thereby guarantee this drive circuit constant current output.This stepper motor driving circuit is also to adopt segmentation to drive, its Principle of sub-division is the same with common Principle of sub-division, but due to the particularity of applied environment, in order to reduce electromagnetic interference, can not adopt PWM to determine Current Control, thereby adopt the ratio of two electric currents of traditional DA control step motor, linear prower amplifier, the mode Driving Stepping Motor that the mould of meeting spatial vector sum is 1, in order further to reduce electromagnetic interference, the control section of circuit adopted integration before this, reduce the mutability of two-phase winding current, then adoption rate amplifies processing, adopt high-power high-accuracy amplifier to drive stepping motor.Whole drive circuit is a complete current closed-loop control, has guaranteed the stability that circuital current changes, because the drive circuit of two phase windings needs symmetry highly, so adopted hardware calibration compensation in circuit.In hardware compensating process, because the curent change of two phase windings of stepping motor must strictly change the accuracy at each segmentation angle of guarantee in proportion, need the height symmetry of two-phase drive circuit at hardware aspect.Because each components and parts is due to the error of actual parameter, finally cause the height symmetry of the accumulation of error and then destruction two-phase drive circuit, so need to eliminate these errors.Such as, whether the test point by the same position with oscilloscope detection drive circuit T6 test point and another circuitry phase meets symmetrical under the same conditions, adjust potentiometer DR1, because integral amplifier U5B adopts voltage parallel negative feedback, the input current that changes signal is the output voltage of capable of regulating integral amplifier U5B, so integral amplifier U5B signal input part is carried out current compensation and can be met the height symmetry of T6 test point and another test point voltage, eliminate error above to drive circuit causes impact below.
The above is preferred embodiment of the present invention, is not limited to the present invention, all modifications of making in technical scope of the present invention, is equal to and replaces or improvement etc., all should be included in the scope that the present invention protects.
Claims (10)
1. a stepper motor driving circuit, is characterized in that, includes:
The A phase integral amplifying circuit and the A phase power amplification circuit that connect successively, the output of described A phase power amplification circuit is connected with the A phase terminal of stepping motor;
The B phase integral amplifying circuit and the B phase power amplification circuit that connect successively, the output of described B phase power amplification circuit is connected with the B phase terminal of stepping motor;
Described A phase integral amplifying circuit includes integral amplifier U4D, integral amplifier U5D, voltage follower U5C and potentiometer DR2, the end of oppisite phase of described integral amplifier U4D is for input reference voltage, the in-phase end of this integral amplifier U4D is used for receiving driving signal, the output of this integral amplifier U4D outputs voltage signal to the end of oppisite phase of integral amplifier U5D, the in-phase end of described integral amplifier U5D is by resistance R 48 ground connection, the output of this integral amplifier U5D is connected in the input of A phase power amplification circuit, the input of described voltage follower U5C is held with the A that the first inspection leakage resistance is connected in stepping motor mutually by the capacitance C43 connecting successively, the output of this voltage follower U5C outputs voltage signal to the end of oppisite phase of integral amplifier U5D, between two stiff ends of described potentiometer DR2, load predeterminated voltage, the voltage signal of described potentiometer DR2 brush end transfers to the end of oppisite phase of integral amplifier U5D,
Described B phase integral amplifying circuit includes integral amplifier U4C, integral amplifier U5B, voltage follower U5A and potentiometer DR1, the end of oppisite phase of described integral amplifier U4C is for input reference voltage, the in-phase end of this integral amplifier U4C is used for receiving driving signal, the output of this integral amplifier U4C outputs voltage signal to the end of oppisite phase of integral amplifier U5B, the in-phase end of described integral amplifier U5B is by resistance R 19 ground connection, the output of this integral amplifier U5B is connected in the input of B phase power amplification circuit, the input of described voltage follower U5A is held with the B that the second inspection leakage resistance is connected in stepping motor mutually by the capacitance C33 connecting successively, the output of this voltage follower U5A outputs voltage signal to the end of oppisite phase of integral amplifier U5B, between two stiff ends of described potentiometer DR1, load predeterminated voltage, the voltage signal of described potentiometer DR1 brush end transfers to the end of oppisite phase of integral amplifier U5B.
2. stepper motor driving circuit as claimed in claim 1, it is characterized in that, between the end of oppisite phase of described integral amplifier U4D and output, be connected with resistance R parallel with one another 45 and capacitor C 44, the in-phase end of this integral amplifier U4D is by resistance R 43 ground connection, between the end of oppisite phase of described integral amplifier U5D and output, be connected with resistance R parallel with one another 47 and capacitor C 45, between the end of oppisite phase of the output of described integral amplifier U4D and integral amplifier U5D, be connected with current-limiting resistance R46, described the first inspection leakage resistance includes resistance R parallel with one another 39, resistance R 40 and resistance R 41, the input of described voltage follower U5C is also by resistance R parallel with one another 51, resistance R 52 and resistance R 53 ground connection.
3. stepper motor driving circuit as claimed in claim 1, it is characterized in that, the brush end of described potentiometer DR2 is connected in the end of oppisite phase of integral amplifier U5D by resistance R 49, the output of described voltage follower U5C is connected in the end of oppisite phase of integral amplifier U5D by resistance R 50.
4. stepper motor driving circuit as claimed in claim 1, it is characterized in that, between the end of oppisite phase of described integral amplifier U4C and output, be connected with resistance R parallel with one another 17 and capacitor C 28, the in-phase end of this integral amplifier U4C is by resistance R 15 ground connection, between the end of oppisite phase of described integral amplifier U5B and output, be connected with resistance R parallel with one another 20 and capacitor C 29, between the end of oppisite phase of the output of described integral amplifier U4C and integral amplifier U5B, be connected with current-limiting resistance R18, described the second inspection leakage resistance includes resistance R parallel with one another 31, resistance R 32 and resistance R 33, the input of described voltage follower U5A is by resistance R parallel with one another 23, resistance R 24 and resistance R 25 ground connection.
5. stepper motor driving circuit as claimed in claim 1, it is characterized in that, the brush end of described potentiometer DR1 is connected in the end of oppisite phase of integral amplifier U5B by resistance R 21, the output of described voltage follower U5A is connected in the end of oppisite phase of integral amplifier U5B by resistance R 100.
6. stepper motor driving circuit as claimed in claim 1, it is characterized in that, described A phase power amplification circuit includes power amplifier U7, the in-phase end of described power amplifier U7 is by resistance R 37 ground connection, this in-phase end is also connected in the output of A phase integral amplifying circuit by resistance R 34, the end of oppisite phase of described power amplifier U7 is by resistance R 35 ground connection, between its output and end of oppisite phase, be connected with feedback resistance R38, the output of this power amplifier U7 is connected in the A phase terminal of stepping motor.
7. stepper motor driving circuit as claimed in claim 1, it is characterized in that, described B phase power amplification circuit comprises power amplifier U6, the in-phase end of described power amplifier U6 is by resistance R 27 ground connection, this in-phase end is also connected in the output of B phase integral amplifying circuit by resistance R 26, the end of oppisite phase of described power amplifier U6, by resistance R 28 ground connection, is connected with feedback resistance R29 between its output and end of oppisite phase, the output of this power amplifier U6 is connected in the B phase terminal of stepping motor.
8. stepper motor driving circuit as claimed in claim 1, is characterized in that, within described integral amplifier U4D and integral amplifier U4C are integrated in chip piece, the model of this chip is LT1014DSW;
Within described integral amplifier U5D, voltage follower U5C, integral amplifier U5B and pressure follower U5A are integrated in chip piece, the model of this chip is LT1014DSW.
9. a controllor for step-by-step motor, it is characterized in that, include single-chip microcomputer, DA change-over circuit and drive circuit, the IO mouth of described single-chip microcomputer is connected with the digital signal port of DA change-over circuit, the voltage signal of described DA change-over circuit output transfers to drive circuit, the two-way of described drive circuit output drives signal to transfer to respectively A phase terminal and the B phase terminal of stepping motor, and described drive circuit is the arbitrary described stepper motor driving circuit of claim 1 to 8.
10. controllor for step-by-step motor as claimed in claim 9, is characterized in that, the chip model of described single-chip microcomputer is STM32F10xCxT6, and described DA change-over circuit comprises DA transducer U3, and the chip model of described DA transducer U3 is AD5334.
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| CN201310737812.XA CN103795312B (en) | 2013-12-27 | 2013-12-27 | A kind of stepper motor driving circuit and controllor for step-by-step motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105450110A (en) * | 2015-12-23 | 2016-03-30 | 中国科学院苏州生物医学工程技术研究所 | Positive and reverse rotation control apparatus for direct current motor |
| CN105626935A (en) * | 2016-01-13 | 2016-06-01 | 陕西省电子技术研究所 | Automatic-control valve control circuit |
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| CN201490955U (en) * | 2009-09-09 | 2010-05-26 | 深圳市雷赛机电技术开发有限公司 | Two-phase step driver |
| CN201490954U (en) * | 2009-09-01 | 2010-05-26 | 深圳市雷赛机电技术开发有限公司 | Novel three-phase driver for stepping motor |
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| JPS6331496A (en) * | 1986-07-24 | 1988-02-10 | Mutoh Ind Ltd | Method for driving stepping motor and circuit therefor |
| CN201490954U (en) * | 2009-09-01 | 2010-05-26 | 深圳市雷赛机电技术开发有限公司 | Novel three-phase driver for stepping motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450110A (en) * | 2015-12-23 | 2016-03-30 | 中国科学院苏州生物医学工程技术研究所 | Positive and reverse rotation control apparatus for direct current motor |
| CN105626935A (en) * | 2016-01-13 | 2016-06-01 | 陕西省电子技术研究所 | Automatic-control valve control circuit |
| CN105626935B (en) * | 2016-01-13 | 2018-03-02 | 陕西省电子技术研究所 | A kind of automatic control valve controling circuit |
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| CN103795312B (en) | 2016-06-15 |
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