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Looking for 110vac to 5vdc power supply schematic.

Discussion in 'Electronic Basics' started by Brian, Sep 5, 2003.

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  1. Brian

    Brian Guest

    You didn't say what amperage you needed, so I drew up a 3 amp supply.
    See the schematic at
    Hope this helps,
  2. Junkmail789

    Junkmail789 Guest

    Trying to find a kit or schematic for a power supply that will convert
    110/120 vac to 5 vdc. Thanks in advance. Tried the entire newsgroups with a
    search didn't have any luck.


    Matt S.
  3. Rich Webb

    Rich Webb Guest

    You also need to spec amperage. 200 mA or 200 A?

    Presuming you're a hobbyist or otherwise looking for an inexpensive
    one-time (or very small volume) low current solution: get (or scrounge
    from the junk pile) a 5 or 6 VDC wall wart and wire it to a DC-DC module

    It's probably not optimally efficient but it's a cheap plug-in solution.
  4. Junkmail789

    Junkmail789 Guest

    Thanks Guys,

    I didn't mention amperage because I driving a couple IC logic chips, so I
    figured it wasn't that important. What I am trying to make is a very CHEAP
    water detection sensor.

    I have the schematic for one at work, but it seemed like over kill. I was
    thinking that I could use a gate IC to activate a buzzer or the relay to a
    pump. (both of which I found kits for).


    Matt S.
  5. Get an old PC power supply, it has 5VDC.
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