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3.3v dc digital output to 240v ac interface

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

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  1. fyah17

    fyah17

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    0
    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

    25,359
    2,755
    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

    5
    1
    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

    fyah17

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    Apr 12, 2014
    Thanks Chris, I did find information on the solid state relay and used it.
     
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