CN220527919U - Control circuit of double stepping motors - Google Patents
Control circuit of double stepping motors Download PDFInfo
- Publication number
- CN220527919U CN220527919U CN202321684981.7U CN202321684981U CN220527919U CN 220527919 U CN220527919 U CN 220527919U CN 202321684981 U CN202321684981 U CN 202321684981U CN 220527919 U CN220527919 U CN 220527919U
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- serial interface
- stepping motors
- side driver
- channel serial
- interface low
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- 230000009977 dual effect Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Control Of Stepping Motors (AREA)
Abstract
The utility model relates to the technical field of motor control, in particular to a double-stepping motor control circuit which comprises a channel serial interface low-side driver, wherein four output pins of the channel serial interface low-side driver are respectively connected with two stepping motors through diodes, the two stepping motors are connected in parallel, anodes of the diodes are connected with the stepping motors, cathodes are connected with the output pins of the channel serial interface low-side driver, the scheme realizes the control of the double stepping motors by utilizing the channel serial interface low-side driver, and the stepping motors have no electricity 12V, good safety and interference resistance and low cost.
Description
Technical Field
The utility model relates to the technical field of motor control, in particular to a double-stepping motor control circuit.
Background
In control theory, conventional control is designed according to the relevant recommendations of the hardware IC manufacturer. The competition is now more and more intense and the cost and reliability become a great importance. So that application-based designs are also becoming increasingly important.
It is often necessary to control 2 stepper motors and 2 motors do not need to be operated simultaneously when designing the solution, since the output is to control the uv_led (other functions are possible as well). A single 8860 output has 8 output ports, and the motor conventional control requires 4 pins, thus leaving only 3 pins, and not enough to control the 4 pins of the other 1 motor. Thus 2 8860 are required to control; the disadvantage of this solution is the high cost of the traditional design; and 12V has electricity all the time, and the control of the motor is completed by controlling 1 path or 2 paths to be opened, so that the safety and the anti-interference performance are poor. And at the same time, the cost is high.
In view of the above drawbacks, the present technical solution has been specially developed.
Disclosure of Invention
The utility model aims to provide a double-stepping motor control circuit which not only controls the opening of 12V, but also controls the opening of 1 path or 2 paths to control the stepping motor.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the control circuit of the double stepping motors comprises a channel serial interface low-side driver, wherein four output pins of the channel serial interface low-side driver are respectively connected with two stepping motors through diodes, the two stepping motors are connected in parallel, anodes of the diodes are connected with the stepping motors, and cathodes of the diodes are connected with the output pins of the channel serial interface low-side driver; the two output pins of the channel serial interface low-side driver are respectively connected with two stepping motors through triodes, the two output pins of the channel serial interface low-side driver are respectively connected with bases of the two triodes, two emitting electrodes are respectively connected with 12V input, the bases are connected with the emitting electrodes through resistors, two collecting electrodes are respectively connected with the two stepping motors, the emitting electrodes and the collecting electrodes are connected through diodes, anodes and collecting electrodes of the diodes are connected, and cathodes and the emitting electrodes are connected.
Further, the lane serial interface low side driver is set to DRV8860.
Further, the channel serial interface low-side driver is set to 2 device combinations of U74HC595A and ULN 2003A.
The control of the double stepping motors is realized by the circuit by utilizing a channel serial interface low-side driver, and the specific principle is as follows:
the low-side driver of the channel serial interface is used for controlling the opening of 12V, and meanwhile, the control of the motor is finished by controlling the opening of 1 path or 2 paths; the diode is used for preventing the other motor which is not turned on from being influenced by the 1 stepping motor which is turned on;
the scheme realizes the control of the double stepping motors by utilizing the low-side driver of the channel serial interface, and the stepping motors 12V have no electricity and have good safety and anti-interference performance. And meanwhile, the cost is low.
Drawings
FIG. 1 is a control circuit diagram of a prior art dual stepper motor;
fig. 2 is a control circuit diagram of embodiment 1 of the present utility model.
In the figure: u1: operational amplifier, U2: analog switch one, U3: analog switch two, Q1: a power tube.
Detailed Description
Please refer to fig. 1 and 2.
Example 1:
the control circuit of the double stepping motors comprises a channel serial interface low-side driver, wherein four output pins of the channel serial interface low-side driver are respectively connected with two stepping motors through diodes, the two stepping motors are connected in parallel, anodes of the diodes are connected with the stepping motors, and cathodes of the diodes are connected with the output pins of the channel serial interface low-side driver; the two output pins of the channel serial interface low-side driver are respectively connected with two stepping motors through triodes, the two output pins of the channel serial interface low-side driver are respectively connected with bases of the two triodes, two emitting electrodes are respectively connected with 12V input, the bases are connected with the emitting electrodes through resistors, two collecting electrodes are respectively connected with the two stepping motors, the emitting electrodes and the collecting electrodes are connected through diodes, anodes and collecting electrodes of the diodes are connected, and cathodes and the emitting electrodes are connected. The channel serial interface low side driver is set to DRV8860.
Whether the stepping motor 1 or the stepping motor 2 is solved by controlling whether the 12VB is electrified or not through the DRV 8860; if stepper motor 1 is to be controlled, output pin 16 of IC840 outputs 0, i.e. Q840 is on, i.e. pin 1 of X840 has 12V; while output pin 15 of IC840 outputs 12V, i.e., Q844 is non-conductive, i.e., X841.
The existing batch scheme is that 12VB is always powered, if the 2-5 pins (one or more) of the socket X840 are 12V, the two ends of the resistor of the stepping motor (the resistor inside) are 12V, namely, the stepping motor is not conducted. If the 2-5 pins (one or more) of the socket X840 are 0V, the resistor of the stepper motor (the resistor inside) is 12V at one end and 0V at the other end, i.e. the resistor is turned on, and the stepper motor is driven. The 8 diodes of V702-V708 have unidirectional conductivity and prevent stepper motor 2 from operating when stepper motor 1 is operating.
Example 2:
the difference between this embodiment and embodiment 1 is that the channel serial interface low-side driver of this embodiment is set to 2 device combinations of U74HC595A and ULN 2003A.
The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (3)
1. The control circuit of the double stepping motors is characterized by comprising a channel serial interface low-side driver, wherein four output pins of the channel serial interface low-side driver are respectively connected with two stepping motors through diodes, the two stepping motors are connected in parallel, the anode of the diode is connected with the stepping motor, and the cathode is connected with the output pin of the channel serial interface low-side driver; the two output pins of the channel serial interface low-side driver are respectively connected with two stepping motors through triodes, the two output pins of the channel serial interface low-side driver are respectively connected with bases of the two triodes, two emitting electrodes are respectively connected with 12V input, the bases are connected with the emitting electrodes through resistors, two collecting electrodes are respectively connected with the two stepping motors, the emitting electrodes and the collecting electrodes are connected through diodes, anodes and collecting electrodes of the diodes are connected, and cathodes and the emitting electrodes are connected.
2. The dual stepper motor control circuit of claim 1, wherein the channel serial interface low side driver is set to DRV8860.
3. The dual stepper motor control circuit of claim 1, wherein the channel serial interface low side driver is configured as a combination of 2 devices U74HC595A and ULN 2003A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321684981.7U CN220527919U (en) | 2023-06-30 | 2023-06-30 | Control circuit of double stepping motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321684981.7U CN220527919U (en) | 2023-06-30 | 2023-06-30 | Control circuit of double stepping motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220527919U true CN220527919U (en) | 2024-02-23 |
Family
ID=89936309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321684981.7U Active CN220527919U (en) | 2023-06-30 | 2023-06-30 | Control circuit of double stepping motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220527919U (en) |
-
2023
- 2023-06-30 CN CN202321684981.7U patent/CN220527919U/en active Active
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