CN103888035A - Stepping motor control circuit - Google Patents
Stepping motor control circuit Download PDFInfo
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- CN103888035A CN103888035A CN201210585157.6A CN201210585157A CN103888035A CN 103888035 A CN103888035 A CN 103888035A CN 201210585157 A CN201210585157 A CN 201210585157A CN 103888035 A CN103888035 A CN 103888035A
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- stepping motor
- power supply
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Abstract
The invention relates to a stepping motor control circuit. The stepping motor control circuit mainly comprises a power supply processing module, a micro control unit module and a stepping motor drive module. The power supply processing module has a power supply input end of an external power supply and two power supply output ends of different output voltage. The micro control unit module is connected with a power supply output end of the power supply processing module, and has a number of analogue-to-digital conversion ports. One analogue-to-digital conversion port is connected with a control sensor, and the other analogue-to-digital conversion port is connected with a stepping motor position sensor. The micro control unit module receives signals acquired by the control sensor and the stepping motor position sensor, and outputs a stepping motor control signal. The stepping motor drive module is respectively connected with the other power supply output end of the power supply processing module, the micro control unit module and a stepping motor coil, receives the stepping motor control signal output by the micro control unit module, and outputs a control command to the stepping motor coil. The stepping motor control circuit provided by the invention can conveniently, accurately and stably control a mechanical valve and the opening of a throttle valve of an engine.
Description
Technical field
The present invention relates to engineering machinery control technology, particularly relate to a kind of circuit structure that stepping motor is controlled.
Background technology
At present, existing engineering machinery mechanical valve used and engine air throttle, its aperture is all controlled with single pole proportional control device and flexible axle.But, because the transmission node of such transmission mechanism is more, therefore, can exist transmission efficiency lower, handle larger, the operating space of strength and can produce more greatly and in use the problems such as idle stroke, be very difficult thereby will carry out accurately control to the aperture of mechanical valve and engine air throttle.
Because the problem that the aperture control of above-mentioned existing mechanical valve and engine air throttle exists, practical experience and the professional knowledge of inventor based on being engaged in this type of product design manufacture and enriching for many years, and the utilization of cooperation scientific principle, actively research and innovation in addition, to founding a kind of stepping motor control circuit of new structure, the problem that can overcome the aperture control existence of existing mechanical valve and engine air throttle, makes it have more practicality.Through continuous research and design, and after repeatedly studying sample and improving, finally create the present invention who has practical value.
Summary of the invention
The object of the invention is to, overcome the problem of the aperture control existence of existing mechanical valve and engine air throttle, and a kind of stepping motor control circuit of new structure is provided, technical problem to be solved is accurately to control the aperture of mechanical valve and engine air throttle easily.
The object of the invention to solve the technical problems can adopt following technical scheme to realize.
The stepping motor control circuit proposing according to the present invention, comprising: power supply processing module, has the power input and two power output ends that output voltage is different of an external power supply; Micro-control unit module, be connected with a power output end of described power supply processing module, and there are multiple analog-to-digital conversion ports, wherein an analog-to-digital conversion port in two analog-to-digital conversion ports is connected with control pick-up and another analog-to-digital conversion port is connected with stepping motor position transducer, receive the collection signal of control pick-up and stepping motor position transducer, and export step motor control signal; Stepping motor driver module, be connected respectively with another power output end, micro-control unit module and the stepping motor coil of power supply processing module, receive the step motor control signal of micro-control unit module output, and to stepping motor coil output control command.
Object of the present invention and solve its technical problem and can also be further achieved by the following technical measures.
Preferably, aforesaid stepping motor control circuit, two power output ends of wherein said power supply processing module are respectively 24V power output end and 5V power output end, and described 24V power output end is connected with micro-control unit module, and described 5V power output end is connected with stepping motor driver module.
Preferably, aforesaid stepping motor control circuit, the I/O interface quantity that wherein said micro-control unit module has is not less than 20.
Preferably, aforesaid stepping motor control circuit, wherein stepping motor driver module comprises: the motor drive ic of THB series.
Preferably, aforesaid stepping motor control circuit, the step motor control signal of wherein said micro-control unit module output comprises: the signal of the enable signal of stepping motor driver module, the signal of the direction of rotation of control step motor and the rotary speed of control step motor.
By technique scheme, stepping motor control circuit of the present invention at least has following advantages and beneficial effect: utilizing stepping electric pushrod and stepping motor throttle to realize as actuator in the application scenarios of adjusting of mechanical valve and engine air throttle aperture, the present invention is by arranging the micro-control unit module being connected with stepping motor position transducer and control pick-up, and the stepping motor driver module that is connected with micro-control unit module of setting, make stepping motor control circuit produce corresponding control command according to the collection signal of stepping motor position transducer and control pick-up, with the rotary speed of control assembly motor, the anglec of rotation and direction of rotation are accurately controlled, thereby can carry out accurate and stable control to the aperture of mechanical valve and engine air throttle easily.In addition, this stepping motor control circuit can also carry out real-time signals collecting and the setting of being correlated with to the operating current of stepping motor.
In sum, the present invention has significant progress technically, and has significantly positive technique effect, becomes a new and innovative, progressive, practical new design.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, and for above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the structural representation of stepping motor control circuit of the present invention;
Fig. 2 is the schematic diagram that power supply processing module of the present invention is processed external power supply;
Fig. 3 is the schematic diagram of microprocessor module of the present invention;
Fig. 4 is the schematic diagram of stepping motor driver module of the present invention.
Embodiment
Technological means and effect of taking for reaching predetermined goal of the invention for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of stepping motor control circuit, structure, feature and effect thereof of proposing according to the present invention, be described in detail as follows.
The concrete structure of stepping motor control circuit of the present invention as shown in Figure 1.
In Fig. 1, this stepping motor control circuit mainly comprises: power supply processing module 1, micro-control unit module 2 and stepping motor driver module 3.
Power supply processing module 1 has a power input and two power output ends.Power supply processing module 1 external power supply (as the power supply on car), and the specification of the output voltage of these two power output ends is not identical, as one be 24V, another is 5V.
Power supply processing module 1 is mainly used in its external power supply to be converted to the output voltage with predetermined dimension, and offers the miscellaneous part in stepping motor control circuit, to meet the power demands of the miscellaneous part in stepping motor control circuit.
The object lesson that power supply processing module 1 is processed external power supply as shown in Figure 2, after the supply voltage on car is carried out short circuit, overvoltage and filtering processing by power supply processing module 1, utilize metal-oxide-semiconductor with voltage stabilizing didoe, car power source voltage transitions to be become to the stabilized voltage power supply of 24V, afterwards, the stabilized voltage power supply of 24V is converted to the stabilized voltage power supply of 5V by the voltage stabilizing chip in power supply processing module 1, wherein, 24V stabilized voltage power supply and 5V stabilized voltage power supply offer respectively micro-control unit module 2 and stepping motor driver module 3.
Micro-control unit module (being MCU module or MCU chip) 2 is connected with a power output end of power supply processing module 1, as being connected with the 24V output end of stabilized voltage supply of power supply processing module 1, thereby the power supply of micro-control unit module 2 is provided by power supply processing module 1.
Micro-control unit module 2 should have multiple analog-to-digital conversion ports (as being no less than three A/D conversion ports) and multiple I/O interface (as being no less than 20 I/O interfaces).In its multiple analog-to-digital conversion ports, can choose an analog-to-digital conversion port and be connected with control pick-up, then choose another analog-to-digital conversion port and be connected with stepping motor position transducer.
Micro-control unit module 2 can receive collection signal and the next collection signal of stepping motor position transducer transmission that control pick-up transmission comes by these two analog-to-digital conversion ports, thereby the collection signal that micro-control unit module 2 can receive according to it produces step motor control signal, and to the step motor control signal of stepping motor driver module 3 its generations of transmission.
In micro-control unit module 2, be provided with corresponding control program, so that the collection signal that micro-control unit module 2 can receive according to it produces corresponding step motor control signal.
The step motor control signal that micro-control unit module 2 produces as shown in Figure 3.
In Fig. 3, MCU chip, receiving after the collection signal of control pick-up and the collection signal of stepping motor position transducer, can produce three tunnel control signals, i.e. EN signal, CW signal and CLK signal; Wherein, whether EN signal is for control step motor drive module 3 work (enable signal that is stepping motor driver module 3), CW signal is used for by the direction of rotation (as control step motor is rotated in the forward or reverse rotation) of stepping motor driver module 3 control step motors, CLK signal is a pulse duration frequency signal, can determine the rotary speed of stepping motor together with the M of this CLK signal and stepping motor driver module 3 segmentation function signal.
Stepping motor driver module 3 is connected with another power output end of power supply processing module 1, and as being connected with the 5V output end of stabilized voltage supply of power supply processing module 1, thereby the power supply of stepping motor driver module 3 is provided by power supply processing module 1.
Stepping motor driver module 3 is also connected respectively with micro-control unit module 2 and stepping motor coil.Stepping motor driver module 3 is mainly used in receiving the step motor control signal that 2 transmission of micro-control unit module come, and the control command that can identify according to the corresponding generation of this step motor control signal stepping motor, afterwards, stepping motor driver module 3 is exported its corresponding control command producing to stepping motor coil.
Stepping motor driver module 3 mainly comprises: the motor drive ic of THB series and some peripheral auxiliary elements, and as resistance and electric capacity etc.The two-phase stepping motor that the motor drive ic of this HB series of T can be specially the semi-conductive THB series of SANYO GS drives chip, and the motor drive ic of this THB series has the functions such as the bridge of enjoying a double blessing MOSFET driving, optional, the automatic semi-fluid locking of multiple segmentation, excess temperature and overcurrent protection.
The motor drive ic that comprises THB series at stepping motor driver module 3, the schematic diagram that stepping motor driver module 3 is exported control command as shown in Figure 4.In Fig. 4, the motor drive ic of the THB series of stepping motor driver module 3 receives EN signal, CW signal and the CLK signal that 2 transmission of micro-control unit module come, the end being connected with EN signal is the Enable Pin of stepping motor driver module 3, as in the time that EN signal is high level, recover the output of stepping motor driver module 3, in the time that EN signal is low level, turn-off the output of stepping motor driver module 3; Stepping motor driver module 3 receives San road signal based on it and exports four road OUT signal He Yi road M segmentation function signals, and Zhe Si road OUT signal can transfer to respectively stepping motor coil (as the A of stepping motor, B phase).
The above is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art are not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (6)
1. a stepping motor control circuit, is characterized in that, comprising:
Power supply processing module, has the power input and two power output ends that output voltage is different of an external power supply;
Micro-control unit module, be connected with a power output end of described power supply processing module, and there are multiple analog-to-digital conversion ports, wherein an analog-to-digital conversion port in two analog-to-digital conversion ports is connected with control pick-up and another analog-to-digital conversion port is connected with stepping motor position transducer, receive the collection signal of control pick-up and stepping motor position transducer, and export step motor control signal;
Stepping motor driver module, be connected respectively with another power output end, micro-control unit module and the stepping motor coil of described power supply processing module, receive the step motor control signal of micro-control unit module output, and to stepping motor coil output control command.
2. stepping motor control circuit according to claim 1, it is characterized in that, two power output ends of described power supply processing module are respectively 24V power output end and 5V power output end, described 24V power output end is connected with micro-control unit module, and described 5V power output end is connected with stepping motor driver module.
3. stepping motor control circuit according to claim 1, is characterized in that, the quantity of the analog-to-digital conversion port that described micro-control unit module has is not less than 3.
4. stepping motor control circuit according to claim 1, is characterized in that, described micro-control unit module has multiple I/O interfaces, and the quantity of described I/O interface is not less than 20.
5. stepping motor control circuit according to claim 1, is characterized in that, described stepping motor driver module comprises: the motor drive ic of THB series.
6. according to the stepping motor control circuit described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that, the step motor control signal of described micro-control unit module output comprises: the signal of the enable signal of stepping motor driver module, the signal of the direction of rotation of control step motor and the rotary speed of control step motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210585157.6A CN103888035A (en) | 2012-12-28 | 2012-12-28 | Stepping motor control circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210585157.6A CN103888035A (en) | 2012-12-28 | 2012-12-28 | Stepping motor control circuit |
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| CN103888035A true CN103888035A (en) | 2014-06-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452286A (en) * | 2007-11-30 | 2009-06-10 | 沈阳新松机器人自动化股份有限公司 | Stepper motor drive device based on CAN bus |
| CN102263536A (en) * | 2011-07-25 | 2011-11-30 | 李军科 | Stepping motor subdivided driving device for current vector constant amplitude control |
| CN202197247U (en) * | 2011-09-06 | 2012-04-18 | 深圳市雷赛智能控制股份有限公司 | Hybrid servo driver based on DSP |
| CN202998000U (en) * | 2012-12-28 | 2013-06-12 | 洛阳市黄河软轴控制器股份有限公司 | Control circuit for stepping motor |
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2012
- 2012-12-28 CN CN201210585157.6A patent/CN103888035A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452286A (en) * | 2007-11-30 | 2009-06-10 | 沈阳新松机器人自动化股份有限公司 | Stepper motor drive device based on CAN bus |
| CN102263536A (en) * | 2011-07-25 | 2011-11-30 | 李军科 | Stepping motor subdivided driving device for current vector constant amplitude control |
| CN202197247U (en) * | 2011-09-06 | 2012-04-18 | 深圳市雷赛智能控制股份有限公司 | Hybrid servo driver based on DSP |
| CN202998000U (en) * | 2012-12-28 | 2013-06-12 | 洛阳市黄河软轴控制器股份有限公司 | Control circuit for stepping motor |
Non-Patent Citations (1)
| Title |
|---|
| 王西鹏等: "步进电机在智能阀门执行器中的应用", 《工业计量》 * |
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Application publication date: 20140625 |