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120VAC to 12VDC - without a transformer?

Discussion in 'Electronic Basics' started by chris, May 24, 2004.

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  1. chris

    chris Guest

    Can the conversion from 120vac to 12vdc be done easily without a
    transformer. I'm looking for a small package that can deliver about
    700ma. Anyone know of a schematic out there I can reference?
     
  2. Hi.

    I think you can convert it to DC with a diode, a capacitor (used as
    impedance for a signal of 120Hz), a 12V zener and another capacitor as a
    filter.

    Cheers,

    Hernán Sánchez
     
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