1. B

    Controlling DC motor directing using LDR.

    Hello! I’m using two photoresistors to control a motor's direction based on which one receives more light. With two motors, I have it set up so the right motor spins when the right LDR gets more light, and the left motor spins when the left LDR gets more light. I've made that using two 2N2222...
  2. R

    How do I design a Snubber for a DC motor with rotation reversal?

    I'm working on a project that needs to have a motor's rotation reversal so that it can run clockwise or counterclockwise depending on an independent control from a microcontroller. I'm achieving the reversal by inverting the Vcc and Ground wires. The microcontroller part of the circuit is...
  3. Vish Ram

    How to stabilize output of DC Motor

    Hi Experts, Like to know, I got 12V 4500rpm DC motor, which I'm using as Generator by manually rotating it's shafts, & connected it's output to full-wave bridge rectifier & 1000microF capacitor at output, but I'm getting fluctuating output of 1V, kindly let me know what all other...
  4. T

    Barber-Colman DC motor repair

    I trying to repair a small Barber-Colman 24v DC motor model CYQM 23310-47, P/N 44678634 (photo attached). I need to replace the 2 toasted, totally un-identified coils on the internal board (photo attached). Anyone have any idea about their values? NB: the Capacitors are 10 nF
  5. kingslayer_137

    9v DC motor not working after changing the windings

    I saw a youtube video where we can increase the rpm of mini dc motors that operate on 9v but changing the windings with coil having more thickness . I did the same as shown in the video but whenever I connected the power supply the motor no longer spins.. it vibrates for like maybe half a second...
  6. G

    I'm looking for datasheet of this motor

    or anything about this motor that would help me understand how to control it (for mechanical lock).
  7. P

    I need to figure out why this DC driver doesn’t work anymore

    I have a 24V DC motor, but it does not work. I would like to find out which of the elements is most likely to be damaged and how to do it. From what I understand, the engine has a Hall sensor to set its position, but I don't know about the rest
  8. D

    DC Motor with DPDT and Speed Control - Help Needed

    I'm working on a machine that I need to help with my business. Essentially, I am looking for something that works similar to a VHS Rewinder / Fast Forwarder that has variable speed. See this video on Youtube for what I am trying to accomplish. What I have been looking into is having two DC...
  9. A

    DC Shunt wound motor flashover

    Hello all, new member here so I definitely apologize if I am placing this thread in the wrong area, however this issue seems to be a power system related issue, so I thought this would be the most suitable location. I have a lot of background context to give, so please make sure you read over...
  10. V

    In-depth resources to create my own dual-axis solar tracker using 1 DC motor and 1 battery/power source

    Hi all, I'm quite new to electronics. I have a very basic understanding of DC circuits, but nothing too extreme, therefore I would like some help on how to create a dual-axis solar tracker using 2 LDRs, run off of a single DC motor, and 1 battery/power source (potentially looking into solar...
  11. Furta21

    Simple project with DC motor

    Hello, My battery powered hair clipper has not enough power for my purposes. Therefore, I decided to remove the battery in order to get a larger DC Motor in it. I have already made a modification of the case and installed the new DC motor properly. Here are some stats of the new DC Motor...
  12. ChrisTsall99

    DC Motor Health

    Is the following method correct? In order to find the health of a dc motor, we apply nominal current on the excitement and nominal voltage on the rotor. After that, we compare the final rpm with the nominal. If they are the same then the motor is healthy. If not, it is unhealthy. Can someone...
  13. M

    Control Small DC Motor to Turn to Position then Return to Original Position with Switch

    Hi, I have a small project that requires a small turn of about 45 degrees that will return to the original position and it needs to be controlled with a switch. The motor I have was cheap so I'm not bothered if you recommend that I get something else, just needs to be very small. Current motor...
  14. Nikson420

    Wholesale, Good price??? or scam?

    Just found this on ali they said its wholesale action and they are in hurry to sell them all. Its that normal price or its really cheap? Please check - https://.aliexpress.com/e/_DBQRbZt I need around 100pcs. Any suggestions is welcome. Thanks!
  15. D

    Limiting inrush current of DC Motor

    Hi, I am new in electronics and I could not resolve the problem. I have a hair clipper which is powered by a battery. Now I want to remove the battery and dc motor in order to power it with a normal power supply. My power supply has an output of 19.5V and 2A. Here is the datasheet of my dc...
  16. A

    Portable Washing Mashine Modification - Wiring Problem

    Howdy, It's my first post here, I've been trying to work the issue out myself, but where I'm at currently I've no functioning RDA protection on the mains breaker and I've no sacrificial fuse equipped power bar to plug my project into in case it causes a surge I'm trying to fix my grandma's old...
  17. C

    Protective elements for powering dc motors

    Hi everyone! I am building a robot that carries a drill to make holes in the ground. I have not been able to find similar size/power references regarding how to power the motors. I would like to know how to protect the battery and motor drivers, my specific questions are: - Where to place...
  18. isagollo

    DC Motor in parallel with a Voice Recorder Playback Module

    I’ve build a circuit using 3V(2x 1.5Volts AA battery)connected in parallel with a ISD1820 Voice Recorder Playback Module with Speaker in parallel with a DC Motor and a Red Led. When I turn the circuit on the LED brightness reduces and the recorded audio in the speaker doesn’t play. What should I...
  19. A

    Basic Motor Project

    Hey I have 12v dc motor I'm trying to attach nichrome to it to heat it up with a hand crank. Basically winding one end with the crank to heat up the nichrome but it isn't heating up. Do I need resistors or a higher voltage. I have about 3 Inches of nichrome on it so far but its not working.
  20. E

    Need help in understanding how to wire car seat motor encoders

    Trying to understand how to wire the hall effect sensors from a car seat motor. The part # given in the image below seems to be an Allegro device. I can't figure out how to wire these. Everything on the right of the terminals seems to be internal to the motor but not sure. It seems pin 2 of the...
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