motor control

  1. K

    Dual 4-20mA signals for a motor

    Hi all, I have the circuit attached as a way to ramp voltage up and down based on a customer's input of dual 4-20mA signals. This will then be turned into a PWM signal to control our motor. Is there a graceful way to handle the 4-20mA signals, as there can't be an instantaneous change. The ramp...
  2. M

    Transistor exhibiting weird behavior

    I have a tip36C transistor. If i connect the emitter to the positive terminal of a 3 volt battery and the collector to the negative terminal of the battery and the base is not connected to anything, it will turn on a motor. And If i connect the emitter to the negative terminal of a 3 volt...
  3. Y

    Motor controller

    I don’t know where this needs to go so I put it in general. I think I need a circuit to control a 6v motor with a on/off switch. I assume it would be 1) battery 2)switch 3)circuit 4)motor. I think I need a circuit that will run a motor for 1-3 seconds then stop for roughly 20 seconds then...
  4. meshcurrent

    same voltage and adjustable current for dc motor

    Hello friends, first of all sorry for my bad English. I am an electrical and electronics engineering student. I have a problem in my control systems lesson project. The project is about controlling a dc motor with adjustable current and same voltage on the dc motor. The professor gave us a clue...
  5. vivek2.718

    How do I know this circuit makes sense and will work when implemented in a breadboard?

    Hi all! I am new here, so please guide me. I am currently working on a project which involves working with H-bridges for motor control. It is required that I am able to wire up the circuit and make it work. The only problem is that I am a Mechanical Engineering student, so I have no knowledge...
  6. M

    Control coreless motor in only small movements?

    Hi, This post is more of a curiosity at the moment with potential to become something if I find a solution/idea. I am an extreme novice to all of this, especially motors and controlling them so please be gentle and patient. I most likely wont know many of the terms you use so please explain it...
  7. sstech

    replace the battery cell power source (1.2v) to 5v

    I am using one machine (which has a small motor) which has battery of 1.2v which got dead and i want to change the power source to USB. The battery is of 1.2V and 400mAh. Motor connected to works perfectly fine if provide the 1.2V from bench power supply. I want to use USB power supply instead.
  8. S

    MC2100 ramps up to full speed then stops

    I've been using this MC2100 in conjunction with a pwm circuit I built, and had been using it successfully for a time on a bandsaw. I must have pushed it a little too hard when resawing a log, as the motor suddenly stopped in the middle of the cut. The behavior afterward was that turning it on...
  9. J

    Looking for a motor controller to implement between a 94V pace battery and a 24V transaxle motor?

    I have to use a 94V battery to power a 24V DC motor and looking for suggestions on a motor controller that will help with the buck converter aspect and in rush current of the motor? Im a student so still trying to learn the best way to do this and was told this may be the best approach? The...
  10. ponas.jonas

    How to control a linear drive motor using PWM

    I am trying to control a linear drive motor with a built-in encoder. I am using a motor driver to move the linear motor. I have calculated a PWM signal for a PWM frequency of 1kHz and a duty percent of 50% with the following values: Internal Clock = 180 MHz Prescaler = 180 Arr register...
  11. R

    how to use car cut-cout with 2 HP water pump?

    hi all I'm trying to control a 2 HP water pump works on one phase using 5V relay, but I feel it's not safe because it's pins are so thinner than the AC wires does using car cut-out relay will be good? should I use just one for the LIVE wire or two for LIVE and Neutral? note: contactors are so...
  12. 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...
  13. 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...
  14. 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...
  15. 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...
  16. 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...
  17. 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...
  18. 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...
  19. 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...
  20. 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.
Top