Connect with us

3.3v dc digital output to 240v ac interface

Discussion in 'General Electronics Discussion' started by fyah17, Apr 12, 2014.

Scroll to continue with content
  1. fyah17


    Apr 12, 2014
    Hello, I need some assistance in creating an interface to change 3.3v dc to a 240v ac device. Any assistance will be greatly appreciated.
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    Jan 21, 2010
    What is your 3.3V source and how much power do you want from the 240V AC?

    If you need more than a fairly small amount of power this isn't going to be easy. Perhaps a motor/generator is the easiest way. But let's wait and see until you've provided the figures.
  3. Chris Dancer

    Chris Dancer

    Nov 6, 2013
    Do you want to change 3.3V to 240V AC, or do you want to control 240V AC with a 3.3V signal?

    If it's the latter, use the 3.3V to switch on a transistor, and use the transistor to switch on a relay. Using a solid-state relay is an alternative, especially if If you can't find a 3.3V relay. Make sure it's rated for 240V and can handle the necessary current.
    Last edited: Apr 14, 2014
    KrisBlueNZ likes this.
  4. fyah17


    Apr 12, 2014
    Thanks Chris, I did find information on the solid state relay and used it.
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day