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Basic project: Want to build a basic power supply with variable voltage/amp output

Discussion in 'Electronic Basics' started by Chris, Dec 31, 2003.

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  1. Chris

    Chris Guest


    I am new to electronics, and I love to play/learn via hands on

    What I would like to do, is built a home brew power supply with
    variable output. Eg. A power supply that I can set to output
    anywhere from 1.5 v to 120 volts for common household items. For
    instance... lets say I have a hand held driller that requires 4
    batteries ( 1.5 volts 1AA battries ), I would like to connect the
    driller to my home brew power supply to get its electricty and power
    the device.

    Is this possible? If so, has anyone done it? I know you can probably
    purchase one, but I would like to attempt at least at making one if
    the costs are not high. I have many spare parts from vcrs power
    supply, etcs..

    Thanks to everyone for your inputs
  2. The range is probably excessive.
    Do yu really need 120 volts DC?
    A more realistic range might be 1.2 to 30 volts.
    Many times.... more than I care to admit....
    You should start with what you have for a step down transformer.
    (Voltage and current ratings...)
    E-mail me, if you want more advice.

    | __O Thomas C. Sefranek
    |_-\<,_ Amateur Radio Operator: WA1RHP
    (*)/ (*) Bicycle mobile on 145.41, 448.625 MHz
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