Electronics please help quickly!! changing 12v to 4.5v

Discussion in 'Modding' started by jmarks1998, 30 Sep 2003.

  1. jmarks1998

    jmarks1998 What's a Dremel?

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    I need to know what resistors I will need to step 12 volts down to 4.5 volts or how to calculate it. Please help. Please!!
     
    jmarks1998, 30 Sep 2003
    #1
  2. ChillingSP

    ChillingSP What's a Dremel?

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    ChillingSP, 30 Sep 2003
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  3. cpemma

    cpemma Ecky thump

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    Yur safer using a regulator, a 5v 7805 should be near enough. :)
     
    cpemma, 30 Sep 2003
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  4. SteveyG

    SteveyG Electromodder

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    Plus a 1N4001 diode or similar on the output, and you'll get around 4.5V.
     
    SteveyG, 30 Sep 2003
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  5. Smilodon

    Smilodon The Antagonist

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    what are you using it for?

    if the current is varying you have to use regulators, but if it's leds or something a resistor should be fine... still need to know current though...
     
    Smilodon, 30 Sep 2003
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