Category: stepper motor driver

stepper motor driver: used in precise linear-motion application

stepper motor driver is used in a new type of precise transmission device which developed by Amacoil/Uhing Company, it has motion controller and is suitable for precise linear motion applications. According to the size of the driver nut, the stepper motor drive provides 7 to 800 pounds of axial thrust. The stepper motor driver provides almost unlimited flexibility to customize linear motion of the drive nut.
It includes a stepper motor controlled by SIEMENS S7 PLC. The shaft of the stepper motor driver is smooth surface hardened steel.Without threads, contaminants will not damage or plug them.
The shaft only rotates in one direction, so there is no need to buy reversible motors.The motion parameters of driving nut, such as travel direction and linear pitch, are controlled by the angle of rolling bearing in driving unit, and then controlled by user programming.
It is ideal for precision winding of a wide range of circular or flat materials, including wires/cables, PVC pipes, pipes, fibers, ropes, rubber hoses and vinyl strips. The precision motion drive system can also handle customized winding patterns and irregular shape spools.
The stepper motor driver is fully programmable and can be used for precise winding machine, X-Y coordinate tool movement and other machines.

stepper motor driver: a new board for it has been released

stepper motor driver needs a board, ST has released a new stepper motor driver evaluation board. It plugs directly into your 3D printer, so if you’re looking for a chip to make a cheap 3D printer controller board, that’s probably what you want.
In just a few years, we have made great progress in the field of stepper motor. The first popular stepper motor driver for RepRap Electronics was Pololu, a stepper motor carrier using Allegro’s A4988 driver. If you have a large radiator, the stepper motor driver can provide 2 years per coil, running between 8 and 35 V, and the micro-step resolution drops to 1/16. Is this the best stepper motor? No, but it’s cheap, it’s everywhere, and the ramp, the popular RapRap control electronics pick up its pinout, unexpectedly creating a standard. Then came the DRV8825 stepper motor driver produced by TI Company, whose micro-step was reduced to 1/32, which increased a little current per coil, and could be said to be a better thermal design.
Next, the three element driving wave occurs. Trin oxime TMC2100 is a silent stepper motor driver when running the motor at medium and low speed. You can run the stepper motor more effectively with this stepper motor driver.

stepper motor driver: essential for stepper motor

Stepper motor driver supports a range of industrial Ethernet and fieldbus network protocols and dedicated serial command language (SCL) for efficient network communication over Ethernet (UDP or TCP) and RS-485. This new stepper motor driver has launched by Applied Motion Products at the international packaging Expo.
Accepting advanced commands over a network connection, STF stepper motor drivers provide system designers and machine builders with the flexibility to control stepping motors using the network protocols they choose. These advanced stepper motor drivers simplify programming by incorporating motion control functions into the application software of the main logic or machine controller, rather than on a separate axis.
These DC-driven micro-step drivers also run stored programs created in the Q programming language of Applied Motion Products. Q programming provides a range of motion configuration files, multitasking, mathematical functions, conditional processing, data register operations, and more robust but simple, text-based programming languages. Operators can use STF Configurer software to configure drives and create Q programs that can be downloaded free of charge from the Applied Motion website.
STF stepper motor driver is designed for the working range of two-phase stepper motor. STF stepper motor provides advanced current control and anti-resonance algorithm, electronic suppression of motor and system resonance, to improve the smoothness of the motor and maximum torque in a wide range of speed. Torque ripple smoothing reduces motor noise and vibration. Stepper motors perform faster, quieter, smoother, and more accurately with STF stepper motor driver.

stepper motor driver: what is it used for?

stepper motor driver circuit is a circuit that makes the stepper motor run smoothly by providing the necessary voltage/current.
One point to note in stepper motor positioning is that the positioning of the stepper motor is precisely achieved with the help of digital control. The stepper motor rotates by the pulse signal of the drive circuit synchronization controller. The stepper motor driver receives pulses from the controller and converts them into stepper motor rotation.
A stepper motor driver is a brushless motor that operates on a pulsed current. In a pulsed current, each pulse causes a rotor to rotate to a fully rotated portion. Servo motors are generally suitable for a wider range of applications, especially when precise motion is required, but stepper motors may be a useful alternative, depending on the application.
Stepper motor drivers are robust, economical and very suitable for digital drives and applications without closed-loop feedback. They are usually used for rotating hard drives, printers, robots, CNC machines, and so on.
The basic elements of the stepper motor drive circuit are:
1. Controller (microcontroller or microprocessor)
2. Driving chip for controlling and processing motor current
3. power supply device
4. All kinds of equipment, such as radiator, switch and so on.
Note: the establishment of stepper motor driver is more to choose the right power supply and driver, and the choice of microcontroller is secondary.

stepper motor driver: operated in a DIY Smart Shades

stepper motor driver is an indispensable part of the stepper motor. They are both widely used in various industries. Inexpensive motorized shades are the holy grail for DIY smart home enthusiasts. Many have tried and many have failed to produce a product that is comparable to the multi thousand dollar shades offered by the big name automation companies.
Making a successful project starts with picking the right materials for the job.  StepperOnline has a huge selection of stepper motors, so I was easily able to pick out the perfect motor for my specific situation.  I opted for a planetary geared stepper motor with a 5:1 gear ratio.  StepperOnline makes super high quality stepper motors for relatively cheap, and this one is no exception.
Lets talk briefly about the important differences between a stepper motor and a normal DC motor.  When you apply current to a DC motor it spins in one direction, raise the voltage and it spins faster, flip the polarity and it spins in the opposite direction.  Those are all useful things, but one thing you can’t do with a DC motor is move it to a specific location and lock it in that location.  That’s where a stepper motor shines.  A stepper motor uses 4 wires instead of 2.  Applying current to two of those wires will advance the motor exactly 1 step.  If I want it to go the next step I’ll need apply current to the other two wires.  The motor we selected has a step angle of .35 degrees, which means every step rotates the shaft by only .35 degrees.  This is really useful information when we consider that this will allow us to know the exact amount that our shades have been rolled down at any given time.  For this specific case we know that we’ll need to do 1028 steps in order to move 360 degrees without using microstepping.
The decision to use a planetary gears is just as important as the decision to use a stepper motor.  Planetary gears allow us to amplify the torque of the stepper motor by a factor of 5 in this case, and that’s important because it means that a less torquey stepper motor will still be able to supply the needed rotational force to roll the shades up and down, but the other reason it is important is that it also makes it 5 times more difficult for the weight of the shades to rotate the shaft of the stepper which will prevent slippage between steps.
Since a stepper motor needs to have a relatively large current pulsed rapidly, you’ll also need a stepper motor driver to handle the heavy lifting. I used the DM320T driver from StepperOnline because it can provide controlled current levels at fairly high voltage.
For a microcontroller I used an ESP8266 based node-mcu because I’m very comfortable with them.  But any ESP8266 based micro controller would work.
Let’s talk briefly about the code.  My code is fairly simple and utilizes the AH_easydriver library for stepper motors.  The code is based off the fact that these shades will go from completely rolled to completely unrolled in 13 full rotations.   Because I’m using a stepper motor I’ll be able to precisely control the number of rotations by sending a specific number of steps.
This stepper motor driver has 3 pins that need to be connected to your microcontroller: The DIR input on the driver connects to GPIO4, which is marked as D2 on the node-mcu, The PUL input on the driver connects to GPIO 0 marked as D3 on the node-mcu, the ENA input connects to GPIO13 which is D7, and the OPTO pin needs to be powered by 5V to power the optoisolator LEDS.  You’ll also need to make sure that your board and your driver share a common ground.
Next you’ll attach the 4 wires of your stepper motor to the stepper motor driver.  The black wire connects to A positive, Green to A negative, Red to B positive and Blue to B negative and attach your 12V power supply to Vdc and Ground.
Before we plug it in, lets double check that our dip switches are in the right place.  Our stepper motor is rated for 1.68 amps, so we’re going to set the current limiting driver to 1.34 amps RMS just to make sure we don’t overload our motor.  We also want to set the resolution to 800 pulses per revolution.
This means our dip switch setup is going to on off off, and off on on.
To test it I’d recommend turning the shaft of the motor manually before you plug it in to line it up with one of the screws we want to make sure that our motor moves in full rotations, so send your motor a command to move 13 full rotations and if it rotates 13 times and ends up in roughly the same position that it started you’re ready to install.
Mount the brackets loosely on either side of the shade and slide the mounting hub onto the stepper motor shaft.  Once everything is in place, slide the brackets closer together to make everything fit nicely, and tighten the mounting bracket screws.
If everything went according to plan you’re done and you should be able to control your shades via MQTT!  Test it out by sending different values to the shades.  The great part about this code is it won’t get confused if you send it a new value before the old one has finished processing.  If you find that your shades are rolling up the wrong way, you can just reverse the + and – wires for each of the A and B motor pairs on your stepper motor driver and the motor will spin in the opposite direction.

stepper motor driver: new version is released

stepper motor driver is very important for stepper motor, the stepper motor can not operate without stepper motor driver. Three new stepper motor drivers are produced by Toshiba America Electronic Components company. They can detect stepper motor overload and automatically adjust the stepper motor power supply to suit this load. When the stepper motor exceeds its designed driving capacity, the motor motion accuracy will drop sharply, and the stepper motor may stop running. Normally, stepper motor driver solutions avoid this by driving too much current to ensure operating margin in the worst case.
Toshiba’s new stepper motor driver is the first to adopt its proprietary anti-stall and active gain control (AGC) technology.Compared with existing products without AGC functions, this stepper motor driver can reduce motor power and heat by 80% by operating at rated current rather than high current, while maintaining motor accuracy and efficiency under various workloads and speeds.
To reduce noise and vibration, the new stepper motor drivers provide full step, half, quarter, 1/8, 1/16 and 1/32 step resolution for fast, accurate motion. They can also identify various error conditions, thereby improving system security and reliability.
Thus, for robotics, precision manufacturing and 3D printing or other applications which require stable, precise and high-speed control, the new stepper motor driver is definitely suitable.

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