motor control

  1. Remo0g

    Elaut eurograb rev2 motor control problem

    Hi, I bought a claw machine and there seems to be a problem with the motor control of the claw going up. when the claw is going up it will go for a brief period and then stop, the motor will stall and it throws an error (claw not going up) . Motor seems fine 28v 0.48a when powered with bench...
  2. J

    Choosing the right varistor

    Hi, I work for company in the UK as an electrical engineer. I have just started at my new place and they have a 3-phase pump motor controller that needs replacing. It's a Coelbo Onematic controller, working off the pressure in the water line. I have a new controller unit but don't want to wire...
  3. R

    PSU query Meanwell PSU 200w - 24v

    Hey everyrone, i have a question regarding a PSU i have at home (once used for a 3d printer). Its a 200 watt PSU 230V AC 2-3A (i think) step down to 24V (8.8A). I was hoping to jerry rig it to a 24v 12kW brushed DC electric oil pump (used for an emergency oil pressure system), i understand this...
  4. L

    24v BLDC Motor Controller

    Hi i have a 24V BLDC motor. I want to rotate the motor certain angle or laps. The motor have 3 pin that "+", "-" and "GND". I'm not sure what kind of ESC i need use for position control. I found some ESCs but these ESCs have different pin names that "U", "V", "W". What kind of ESC do i need use...
  5. G

    Motor Control Timer

    I have a customer that has a power washer hooked up to a Start-Stop Push Button control circuit. They want to add a timer where once the start button is pushed, will shut off the power washer automatically after a certain period of time (ie; 5 min). What kind of timer do I need to do this and if...
  6. J

    BLDC motor open circuit effects

    Hi I am trying to use a BLDC motor as a generator using the regenerative braking function. I have a situation where I need to be able to spin it while the e-lock is on, so I am thinking of using relays to open circuit the field windings while I do this. When I close the relays, I want to be sure...
  7. roll332

    Motor Automation Diagram

    Hello! Im an indoor electrican apprenticeship student and I need help with solving a task we we're given, since I can't seem to figure it out. A little context too: on the photo you can see a motor diagram, the thing is, when u press both the start buttons and all the contactors go down, you...
  8. flaviodsilva

    Motor control using MOC3041 optocoupler

    I'm currently doing my master thesis, and I'm now at a point where I have to control a few AC motors with a microcontroller. From my previous study about the subject, and from previous similar thesis, I've noticed a common practice is to use an optocoupler to separate low voltage from high...
  9. J

    Power Circuit for TB9051FTG Trace Width

    Please see https://electronics.stackexchange.com/questions/610932/power-circuit-for-tb9051ftg-trace-width If anyone could offer more advice about the trace width I should be using for the power circuit for the TB9051FTG chip, that would be hugely helpful.
  10. pirlem

    Solar-powered mirror ball

    Hello dear Forum, I am new here. I don't have much knowledge of solar panels or motors... I was wondering how it would be possible to connect a small/medium solar panel (not too expensive) to a mirror ball motor (for a 50cm diameter disco ball). I don't have any of the materials yet, that's why...
  11. busevaran

    Trying to control a motor speed with a PID circuit.

    Hi everyone! I'm Buse. I'm trying to control a motor speed for a personal project. You can find the schematic of the circuit I found on a book. This circuit works with only the PID parts contrcuted. My problem start when I add the other parts. For example, U1 opamp (top left) is supposed to...
  12. D

    Speed Control of single phase shaded pole motor

    I have a group project where I have to control the speed of a single-phase shaded pole induction motor. My plan was to use a Triac-based circuit however, all Triac circuits I have seen use a potentiometer to control the speed of the motor. In this project, the motor's speed is dependent on an...
  13. S

    Op-Amp buffer Enable/Disable

    I am designing an electric veichle controller for a University project. The motor driver receives an analog signal (0-12V) to adjust the speed. I use a digipot followed by a buffer to convert the digital signal of the controller to ana analog one. Now I need some way to enable an disable each...
  14. Lawrence White

    Struggling to get this MC33035 to work, can anyone help at all?

    Afternoon everyone, Getting rather frustated with somethign that seems straightforward to me... I have researched and corrected any mistakes I have made, done a rebuild several times, but can never get this thing to work. draws about 10mA on a 12V test voltage and thats it. nothing seems to...
  15. B

    Startups increasing efficiency in motors. Revolutionary ideas or old ideas dressed up with marketing?

    I was looking into companies or startups that were doing things with motors to improve efficiency. I stumbled upon Turntide Technologies, which has a partnership with Amazon. Turntide is making a software-driven motor that "enables precise and reliable control to effectively use every watt of...
  16. P

    Need advice on how to speed control 4.25HP treadmill motor w/o MC2100 MCB

    Just have to say at the outset that this forum is pretty awesome, and everyone is so patient with noobs (like me). I’m a woodworker looking to put to use the treadmill motor I harvested from my wife’s never-used treadmill. It’s a 4.25HP pmdc motor, cont duty at 130vdc/3171 watts. I had the...
  17. Khisraw

    Controlling AC powered devices

    Hi All, As an electronics engineer, I have always worked with low voltage circuits and found it very difficult to control high voltage, AC powered devices. In my last project, I needed a power board that I can just plug my MCU or DSP and control an instrument that needs high power. I wanted an...
  18. S

    Turn 6V motor on/off via 555 timer astable circuit and 5V relay

    I have been working on a circuit to turn a motor on for several seconds, and then off for a longer period, using a 555 astable circuit. The on time needs to be around 5-10 seconds, and the off time needs to be about a minute. To get around the 50% duty cycle issue and allow for a longer off...
  19. U

    Question about inductive spiking

    I'm working on building an electric scooter and yesterday the speed controller had a MOSFET failure that I suspect was caused by inductive spiking. This was very surprising to me because I had a schottky diode in parallel with the motor to prevent this type of failure. I took the speed...
  20. G

    Pro-form 530ZLT burned control board, engine has no torque

    Hello, my treadmill pro-form 530zlt got burned control board. It has MC2100ELS-18W control board driving this motor. I'm stuck in difficult situation as after getting board running again motor has no torque, I can stop it by hand. I noticed that commutator brushes are giving noise and sparks...
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