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3.3v dc digital output to 240v ac interface

fyah17

Apr 12, 2014
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Apr 12, 2014
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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.
 

(*steve*)

¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd
Moderator
Jan 21, 2010
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25,510
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.
 

Chris Dancer

Nov 6, 2013
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Nov 6, 2013
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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.
 
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fyah17

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