1. qingyou

    Burnt my arduino and motor driver when connecting them to a solenoid, but I don't know why

    Hi, I am new to electronics, trying to build a whac-a-mole machine based on this tutorial Circuit of the tutorial I am currently just working on one of the solenoid actuator, hoping to make it responding to the state of the limit switch. Circuit of my attempt of making one solenoid work...
  2. J

    Question about mosfet, photodiode, capacitor and solenoid connection

    Hi, I am an electronics noob. I have some questions regarding a particular application. I have to move a small cylindrical rod using a solenoid (whose capacity is 1.5kg lifting force and rated at 12V). My application requires me to energize the solenoid only when I get a signal from somewhere...
  3. E

    Motion detector solenoid lol

    Hey! Super beginner here, I’m looking to design a system, that a pir controls 2 push solenoids. im assuming I need a controller or a contactor, for once motion is detected I need solenoid 1 to push out, then once motion is no longer being detected I need solenoid 2 to push out, I’m a electrician...
  4. Marcodavid

    Solenoid Flyback protection

    I am planning to make solenoid: *Coil = 3.5 Ohm Dc - 3.5 mh inductance *Capacitor = 450v- 1000 uf *Dc Battery = 12v *Dc Booster = up to 400v *Push button switch Iam willing to operate it on 150v or 200v I am worrying about the switch to get damage by the back emf I did some research...
  5. Marcodavid

    design an RC snubber for ac solenoid lock ( inductive load)

    I am designning ac solenoid lock, read the inductive load needs snubber circuit to protect from inductive turnoff transients Here is my design Resistance 8 ohm Main outlet power source 220 - 50 hz Inductance 150 mh Impedance 47 ohm I (rms) ~ 5A So do i really snubber circuit? If so iam...
  6. I

    Power supply turn off when latching solenoids switches ON?

    I have two 24VDC, 1.54A latching solenoids. I connected them both in parallel with power supply (80V, 80A). But when i turn ON the power supply it immediately turn off. However, when i connect a single latching solenoid with power supply it works fine. Is it necessary to use two power supplies...
  7. maurodelazeri

    Controlled solenoid stroke length

    Let me create a scenario to better illustrate the problem I have 1500 pens that I want to individually actuate upwards with 3 different distances, ex: 10mm/15mm/20mm I thought I could use solenoids to do this, but I'm not sure if this is the best option and how accurate the solenoid will be...
  8. 3

    Solar charger & timer

    Hi I need help building the electronics for a home project. Essentially I am trying to: 1. Charge a battery with a solar panel 2. Activate a 12solenoid valve controlling pressurized water with a push button 3. Have the solenoid close after an adjustable time delay I was able to find solar...
  9. Q

    Fingerprint Module with Door lock Solenoid - Arduino Nano ..

    Greeting, Thank you for your support guys. I am a newbie to the Electronics, but I did read for a long time and search but this is my first circuit it may look easy for you but I need help. Here are two schematic and I need them to be joined together with Op protection and reverse voltage...
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