CN204761347U - Stepper motor driver - Google Patents
Stepper motor driver Download PDFInfo
- Publication number
- CN204761347U CN204761347U CN201520358088.4U CN201520358088U CN204761347U CN 204761347 U CN204761347 U CN 204761347U CN 201520358088 U CN201520358088 U CN 201520358088U CN 204761347 U CN204761347 U CN 204761347U
- Authority
- CN
- China
- Prior art keywords
- oxide
- semiconductor
- metal
- electrically connected
- driver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a stepper motor driver, including the treater, still include H bridge circuit, H bridge driver and CAN communication interface, the treater with H bridge driver electricity is connected, H bridge driver is connected with H bridge circuit electricity, is used for the drive H bridge circuit, H bridge circuit is connected with the step motor electricity, CAN communication interface is connected with the treater electricity. This stepper motor driver can put forward the high anti jamming ability through adopting CAN communication interface.
Description
[technical field]
The utility model relates to a kind of stepper motor driver.
[background technology]
In prior art, in stepper motor driver, processor receives the Pulse Width Control of other processors, thus controls stepping motor.Such control mode, control command is easily subject to the interference of other signals.
[summary of the invention]
In order to overcome the deficiencies in the prior art, the utility model provides a kind of stepper motor driver, to improve interference free performance.
A kind of stepper motor driver, comprise processor, also comprise H-bridge circuit, H bridge driver and CAN communication interface, described processor is electrically connected with described H bridge driver, described H bridge driver is electrically connected with H-bridge circuit, for driving described H-bridge circuit, described H-bridge circuit is electrically connected with stepping motor, and described CAN communication interface is electrically connected with processor.
Preferably, also comprise current sampling circuit, described current sampling circuit is electrically connected with described processor and H-bridge circuit respectively, for sampling to the electric current of described H-bridge circuit.
Preferably, also comprise photoelectric code disk and optical detection device, described photoelectric code disk is connected with the axle of described stepping motor, and described optical detection device is arranged on the side of described photoelectric code disk, and described photoelectric code disk and optical detection device are electrically connected with described processor respectively.
Preferably, also comprise the first photoelectric travel limit switch, the axle of described stepping motor is converted to the motion linearly of driven object body, the output of described first photoelectric travel limit switch is electrically connected with processor, described first photoelectric travel limit switch is arranged on the origin position of described driven object body, whether is positioned at described origin position for detecting described driven object body.
Preferably, also comprise the second photoelectric travel limit switch, described second photoelectric travel limit switch is arranged on the final position of described driven object body, whether is positioned at described final position for detecting described driven object body.
Preferably, also comprise power supply, described power supply is used for powering to described processor, H-bridge circuit, H bridge driver and CAN communication interface.
Preferably, described H-bridge circuit comprises the first H-bridge circuit and the second H-bridge circuit, described H bridge driver comprises the first half-bridge driver, second half-bridge driver, 3rd half-bridge driver and the 4th half-bridge driver, described first H-bridge circuit comprises the first metal-oxide-semiconductor, second metal-oxide-semiconductor, 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor, described second H-bridge circuit comprises the 5th metal-oxide-semiconductor, 6th metal-oxide-semiconductor, 7th metal-oxide-semiconductor and the 8th metal-oxide-semiconductor, be serially connected between power supply and ground after described first metal-oxide-semiconductor and the second metal-oxide-semiconductor serial connection, be serially connected between described power supply and ground after described 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor serial connection, be serially connected between described power supply and ground after 5th metal-oxide-semiconductor and the 6th metal-oxide-semiconductor serial connection, be serially connected between described power supply and ground after 7th metal-oxide-semiconductor and the 8th metal-oxide-semiconductor serial connection, described first half-bridge driver is electrically connected with the control pole of the first metal-oxide-semiconductor and the second metal-oxide-semiconductor respectively, described second half-bridge driver is electrically connected with the control pole of the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor respectively, described 3rd half-bridge driver is electrically connected with the control pole of the 5th metal-oxide-semiconductor and the 6th metal-oxide-semiconductor respectively, described 4th half-bridge driver is electrically connected with the control pole of the 7th metal-oxide-semiconductor and the 8th metal-oxide-semiconductor respectively, the common port of described first metal-oxide-semiconductor and the second metal-oxide-semiconductor is electrically connected with the first end of the first-phase of described stepping motor, described 3rd metal-oxide-semiconductor and the common port of the 4th metal-oxide-semiconductor are electrically connected with the second end of the first-phase of described stepping motor, the common port of described 5th metal-oxide-semiconductor and the 6th metal-oxide-semiconductor is electrically connected with the first end of the second-phase of described stepping motor, described 7th metal-oxide-semiconductor and the common port of the 8th metal-oxide-semiconductor are electrically connected with the second end of the second-phase of described stepping motor.
By have employed CAN communication interface, antijamming capability can be improved.Processor can control multiple half-bridge driver simultaneously.Carry out FEEDBACK CONTROL by arranging photoelectric code disk to the running of stepping motor, that can reduce stepping motor loses step probability.By adopting CAN interface, can configuration be simplified, reducing the consumption of wire rod.
[accompanying drawing explanation]
Fig. 1 is the system schematic of the stepper motor driver of a kind of embodiment of the utility model;
Fig. 2 is the principle schematic of the stepper motor driver of a kind of embodiment of the utility model.
[embodiment]
Below the preferred embodiment of utility model is described in further detail.
As illustrated in fig. 1 and 2, a kind of stepper motor driver of embodiment, comprise processor, H-bridge circuit, H bridge driver and CAN communication interface, H-bridge circuit can adopt metal-oxide-semiconductor, described processor is electrically connected with described H bridge driver, described H bridge driver is electrically connected with H-bridge circuit, and described H-bridge circuit is electrically connected with stepping motor, and described CAN communication interface is electrically connected with processor.
Processor produces the control impuls controlling H-bridge circuit break-make, and control impuls through the amplification of H bridge driver, thus controls the break-make of H-bridge circuit, and H-bridge circuit Driving Stepping Motor operates.Other processors can send control command by CAN communication interface to described processor, pass through pulse control mode, can improve reliability compared in prior art between processor.
In one embodiment, stepper motor driver can also comprise current sampling circuit, described current sampling circuit is electrically connected with described processor and H-bridge circuit respectively, and for sampling to the electric current of described H-bridge circuit, thus processor obtains the size of current of H-bridge circuit.Processor can according to the size of current obtained of sampling, and the control impuls of adjustment generation further, forms the FEEDBACK CONTROL to H-bridge circuit.
In one embodiment, stepper motor driver can also comprise photoelectric code disk and optical detection device, such as optocoupler, described photoelectric code disk is connected with the axle of described stepping motor, described photoelectric code disk is electrically connected with described processor, described optical detection device is arranged on the side of described photoelectric code disk, photoelectric code disk and optical detection device respectively with the axle synchronous axial system of stepping motor, when a processor control step electric machine rotation angle on target, processor obtains the rotational angle of photoelectric code disk by optical detection device, if the angle that photoelectric code disk rotates is identical with angle on target, then show that stepping motor rotates correct, otherwise show that stepping motor rotates and occur error, need the rotational angle of adjustment stepping motor further.
In one embodiment, stepper motor driver can also comprise the first photoelectric travel limit switch, the axle of described stepping motor is converted to the motion linearly of driven object body, as being enclosed within moving horizontally of slide block on screw mandrel, first photoelectric travel limit switch is arranged on the origin position of described driven object body, the output of the first photoelectric travel limit switch is electrically connected with processor, described origin position whether is positioned at for detecting described driven object body, thus processor can judge whether driven object body is positioned at origin position, origin position is moved at needs driven object body, driven object body can be controlled and move to origin position.
In one embodiment, stepper motor driver can also comprise voltage detecting circuit, and voltage detecting circuit is connected with processor and power supply respectively, for detecting supply voltage.
In one embodiment, stepper motor driver can also comprise the second photoelectric travel limit switch, described second photoelectric travel limit switch is arranged on the final position of described driven object body, described final position whether is positioned at for detecting described driven object body, the output of the second photoelectric travel limit switch is electrically connected with processor, thus processor can judge whether driven object body is positioned at final position, move to final position at needs driven object body, driven object body can be controlled and move to final position.
Stepper motor driver also comprises power supply, and described power supply is used for powering to described processor, H-bridge circuit, H bridge driver and CAN communication interface, and power supply can comprise DC-DC power source and LDO (pressure reduction linear voltage regulator).
As shown in Figure 2, described H-bridge circuit can comprise the first H-bridge circuit and the second H-bridge circuit, described H bridge driver comprises the first half-bridge driver, second half-bridge driver, 3rd half-bridge driver and the 4th half-bridge driver, described first H-bridge circuit comprises the first metal-oxide-semiconductor Q1, second metal-oxide-semiconductor Q2, 3rd metal-oxide-semiconductor Q3 and the 4th metal-oxide-semiconductor Q4, described second H-bridge circuit comprises the 5th metal-oxide-semiconductor Q5, 6th metal-oxide-semiconductor Q6, 7th metal-oxide-semiconductor Q7 and the 8th metal-oxide-semiconductor Q8, described first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 is serially connected between power supply VCC and ground after being connected in series, described 3rd metal-oxide-semiconductor Q3 and the 4th metal-oxide-semiconductor Q4 is serially connected between power supply VCC and ground after being connected in series, 5th metal-oxide-semiconductor Q5 and the 6th metal-oxide-semiconductor Q6 is serially connected between power supply VCC and ground after being connected in series, 7th metal-oxide-semiconductor Q7 and the 8th metal-oxide-semiconductor Q8 is serially connected between power supply VCC and ground after being connected in series, described first half-bridge driver is electrically connected with the control pole of the first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 respectively, described second half-bridge driver is electrically connected with the control pole of the 3rd metal-oxide-semiconductor Q3 and the 4th metal-oxide-semiconductor Q4 respectively, described 3rd half-bridge driver is electrically connected with the control pole of the 5th metal-oxide-semiconductor Q5 and the 6th metal-oxide-semiconductor Q6 respectively, described 4th half-bridge driver is electrically connected with the control pole of the 7th metal-oxide-semiconductor Q7 and the 8th metal-oxide-semiconductor Q8 respectively, described first metal-oxide-semiconductor Q1 and the common port of the second metal-oxide-semiconductor Q2 are electrically connected with the first end A-of the first-phase of described stepping motor, described 3rd metal-oxide-semiconductor Q3 and the common port of the 4th metal-oxide-semiconductor Q4 are electrically connected with the second end A+ of the first-phase of described stepping motor, described 5th metal-oxide-semiconductor Q5 and the common port of the 6th metal-oxide-semiconductor Q6 are electrically connected with the first end B-of the second-phase of described stepping motor, described 7th metal-oxide-semiconductor Q7 and the common port of the 8th metal-oxide-semiconductor Q8 are electrically connected with the second end B+ of the second-phase of described stepping motor.
For the first H-bridge circuit, control conducting first metal-oxide-semiconductor Q1 and the 4th metal-oxide-semiconductor Q4, electric current flows through the A phase coil of stepping motor, and controlling the 3rd metal-oxide-semiconductor Q3 and the second metal-oxide-semiconductor Q2, electric current flows through the A phase coil of stepping motor, and the sense of current is contrary, by the direction of control step current of electric, can the rotation direction of control step motor, and by controlling to flow through the A phase coil of stepping motor and the size of current of B phase coil, can control step electric machine rotation angle.And adjust the frequency of control impuls, then can the rotating speed of control step motor.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; some simple deduction or replace can also be made, all should be considered as belonging to the scope of patent protection that the utility model is determined by submitted to claims.
Claims (7)
1. a stepper motor driver, comprise processor, it is characterized in that, also comprise H-bridge circuit, H bridge driver and CAN communication interface, described processor is electrically connected with described H bridge driver, and described H bridge driver is electrically connected with H-bridge circuit, for driving described H-bridge circuit, described H-bridge circuit is electrically connected with stepping motor, and described CAN communication interface is electrically connected with processor.
2. stepper motor driver as claimed in claim 1, it is characterized in that, also comprise current sampling circuit, described current sampling circuit is electrically connected with described processor and H-bridge circuit respectively, for sampling to the electric current of described H-bridge circuit.
3. stepper motor driver as claimed in claim 1, it is characterized in that, also comprise photoelectric code disk and optical detection device, described photoelectric code disk is connected with the axle of described stepping motor, described optical detection device is arranged on the side of described photoelectric code disk, and described photoelectric code disk and optical detection device are electrically connected with described processor respectively.
4. stepper motor driver as claimed in claim 1, it is characterized in that, also comprise the first photoelectric travel limit switch, the axle of described stepping motor is converted to the motion linearly of driven object body, the output of described first photoelectric travel limit switch is electrically connected with processor, described first photoelectric travel limit switch is arranged on the origin position of described driven object body, whether is positioned at described origin position for detecting described driven object body.
5. stepper motor driver as claimed in claim 4, it is characterized in that, also comprise the second photoelectric travel limit switch, described second photoelectric travel limit switch is arranged on the final position of described driven object body, whether is positioned at described final position for detecting described driven object body.
6. stepper motor driver as claimed in claim 1, is characterized in that, also comprise power supply, and described power supply is used for powering to described processor, H-bridge circuit, H bridge driver and CAN communication interface.
7. stepper motor driver as claimed in claim 1, it is characterized in that, described H-bridge circuit comprises the first H-bridge circuit and the second H-bridge circuit, described H bridge driver comprises the first half-bridge driver, second half-bridge driver, 3rd half-bridge driver and the 4th half-bridge driver, described first H-bridge circuit comprises the first metal-oxide-semiconductor, second metal-oxide-semiconductor, 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor, described second H-bridge circuit comprises the 5th metal-oxide-semiconductor, 6th metal-oxide-semiconductor, 7th metal-oxide-semiconductor and the 8th metal-oxide-semiconductor, be serially connected between power supply and ground after described first metal-oxide-semiconductor and the second metal-oxide-semiconductor serial connection, be serially connected between described power supply and ground after described 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor serial connection, be serially connected between described power supply and ground after 5th metal-oxide-semiconductor and the 6th metal-oxide-semiconductor serial connection, be serially connected between described power supply and ground after 7th metal-oxide-semiconductor and the 8th metal-oxide-semiconductor serial connection, described first half-bridge driver is electrically connected with the control pole of the first metal-oxide-semiconductor and the second metal-oxide-semiconductor respectively, described second half-bridge driver is electrically connected with the control pole of the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor respectively, described 3rd half-bridge driver is electrically connected with the control pole of the 5th metal-oxide-semiconductor and the 6th metal-oxide-semiconductor respectively, described 4th half-bridge driver is electrically connected with the control pole of the 7th metal-oxide-semiconductor and the 8th metal-oxide-semiconductor respectively, the common port of described first metal-oxide-semiconductor and the second metal-oxide-semiconductor is electrically connected with the first end of the first-phase of described stepping motor, described 3rd metal-oxide-semiconductor and the common port of the 4th metal-oxide-semiconductor are electrically connected with the second end of the first-phase of described stepping motor, the common port of described 5th metal-oxide-semiconductor and the 6th metal-oxide-semiconductor is electrically connected with the first end of the second-phase of described stepping motor, described 7th metal-oxide-semiconductor and the common port of the 8th metal-oxide-semiconductor are electrically connected with the second end of the second-phase of described stepping motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520358088.4U CN204761347U (en) | 2015-05-28 | 2015-05-28 | Stepper motor driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520358088.4U CN204761347U (en) | 2015-05-28 | 2015-05-28 | Stepper motor driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204761347U true CN204761347U (en) | 2015-11-11 |
Family
ID=54476015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520358088.4U Active CN204761347U (en) | 2015-05-28 | 2015-05-28 | Stepper motor driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204761347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106330025A (en) * | 2016-10-24 | 2017-01-11 | 北京灵铱科技有限公司 | Low-noise stepping driver |
-
2015
- 2015-05-28 CN CN201520358088.4U patent/CN204761347U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106330025A (en) * | 2016-10-24 | 2017-01-11 | 北京灵铱科技有限公司 | Low-noise stepping driver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102837821B (en) | Controller of steering engine | |
| CN103560039B (en) | A kind of high-voltage breaker permanent magnet salient pole motor operation mechanism and control method | |
| CN105322838A (en) | Three-level motor power converter achieving quick demagnetization | |
| CN201374671Y (en) | Controller of direct current brushless motor | |
| TW200726059A (en) | Fan system and real-time stopping device thereof | |
| CN204761347U (en) | Stepper motor driver | |
| CN202218186U (en) | Commutation control device of direct current motor | |
| CN103066914A (en) | Direct power control system of high power factor induction motor | |
| CN105790655A (en) | Low-power DC torque motor speed control device | |
| CN205336163U (en) | Steering wheel based on three -phase two poles of earth thoughts brushless DC motor | |
| CN101917149B (en) | Method for controlling electronic torque commutation of direct current series excited machine | |
| CN201896024U (en) | Permanent magnetic synchronous door machine controller | |
| CN203933487U (en) | A kind of commutation control module | |
| CN203301414U (en) | Sine subdivision drive circuit used for stepping motor | |
| CN103997194A (en) | Method for driving switch tube in BUCK circuit | |
| CN107171604A (en) | Brushless coil excitation direct current motor sensorless DSP control system | |
| CN203627982U (en) | Valve actuator | |
| CN102739133B (en) | Dual-voltage control switch reluctance motor and dual-voltage control drive device thereof | |
| CN203251261U (en) | Brushless DC motor power conversion circuit | |
| CN202957783U (en) | Motor controller | |
| CN105610349A (en) | Rapid actuator brake device | |
| CN104410335A (en) | Control circuit and control method of intelligent small-power motor controller | |
| CN203984211U (en) | The brushless DC motor that a kind of position transducer is adjustable | |
| CN203487333U (en) | Electronic weft feeder driven by brushless direct current motor | |
| CN203457021U (en) | A brushless DC motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160317 Address after: Baoan District Xixiang Huang Tian street community of Shenzhen city in Guangdong province 518000 Yang back industrial zone three Heng Rong High-tech Industrial Park eleven Building 5 floor A District Patentee after: Dakewe (Shenzhen) medical equipment Co., Ltd. Address before: 518000, 203B building, building A, No. 43, building 1, Shenzhen, Nanshan District, Guangdong Patentee before: SHENZHEN DAKEWE MEDICAL TECHNOLOGY CO., LTD. |