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    chesty7's Avatar
    chesty7 Posts: 2, Reputation: 1
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    #1

    Apr 15, 2008, 02:54 PM
    Voltage reduction
    I would alke to take a small PC board and convert it to take 120vac input and comvert it to 30 vac output. It would have provisions to attach a 2 conducter wire.
    What componants do I need.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Apr 15, 2008, 04:09 PM
    At what power or what current at 30 V otherwise can't answer?

    I might also need the application.
    chesty7's Avatar
    chesty7 Posts: 2, Reputation: 1
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    #3

    Apr 16, 2008, 07:24 PM
    Quote Originally Posted by KeepItSimpleStupid
    At what power or what current at 30 V otherwise can't answer?

    I might also need the application.
    It would be 120 vac input and 30 vac out put @500 ma. I will be using it to run a Dell Laptop.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #4

    Apr 16, 2008, 08:46 PM
    Something doesn't seem right at all. Laptop adapters are usually DC and nominally around 45-90 watts. 30 VAC at 0.5 amps means 15 watts, which doesn't make any sense.

    120 VAC at 500 mA would translate to 60 watts and 30 VDC, not AC is likely.

    Check the specifications again. Some Dell Adapters are located here:

    Dell Inspiron AC Power Adapters

    You can also post a model number.

    Many adapters are usually universal, meaning they will accept 95-285 VAC. The only requirement is to change the input power cord to the country of origin.
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