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How To Convert 120V Ac To 4.5V Dc


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Question for all you electrical brains out there:

 

What kind of circuit can I build to convert 120V AC to 4.5V DC?

 

I picked up this 5ft tall animated Santa from the Rite-Aid today. The animation is a moving mouth which moves in sync to several Christmas songs and a Christmas story. The mouth movement and sounds are powered by 3 AA batteries, so that's about 4.5V DC.

I am going to try to animate the arms by installing a deer motor and some linkages. I'd like to power the mouth from this 120V AC deer motor and eliminate the batteries.

 

So can someone please draw me a schematic or explain how to convert 120V AC to 4.5V DC?

 

Thanks,

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