HOW DO I REDUCE 12 VOLTS TO 6 VOLTS

Discussion in 'Electronic Basics' started by Guest, Jan 21, 2005.

  1. Guest

    Guest Guest

    Im trying to reduce a 12v DC power supply down to 5v DC to power a computer
    CD-Rom.

    Can any1 help me???

    Thanx
    Gareth
     
    Guest, Jan 21, 2005
    #1
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  2. Guest

    Graham Knott Guest

    Graham Knott, Jan 21, 2005
    #2
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  3. <> schreef in bericht
    news:...
    > Im trying to reduce a 12v DC power supply down to 5v DC to power a
    > computer
    > CD-Rom.
    >
    > Can any1 help me???
    >
    > Thanx
    > Gareth
    >
    >
     
    petrus bitbyter, Jan 21, 2005
    #3
  4. <> schreef in bericht
    news:...
    > Im trying to reduce a 12v DC power supply down to 5v DC to power a
    > computer
    > CD-Rom.
    >
    > Can any1 help me???
    >
    > Thanx
    > Gareth
    >
    >


    Power requirements of computer CD-ROMplayers differ widely. The heaviest one
    I have in front of my says it requires 5V/1.5A and 12V/1.5A. Another one
    wants only 5V/1A en 12V/400mA. So you'd better find out first what you
    really need.

    The most simple way to make 5V out of 12V is using an 7805. Of course you
    need a type that can provide the output current you need and you will have
    to provide some some thorough heatsinking. You may have to throw away over
    10W of energy.

    petrus bitbyter
     
    petrus bitbyter, Jan 21, 2005
    #4
  5. Guest

    HKJ Guest

    "petrus bitbyter" <> wrote in message
    news:fOcId.3305$...
    > > Im trying to reduce a 12v DC power supply down to 5v DC to power a
    > > computer
    > > CD-Rom.
    > >
    > > Can any1 help me???


    Download and use http://hjem.get2net.dk/hkj/miscel.html page "Power supply"
     
    HKJ, Jan 21, 2005
    #5
  6. Guest

    JeB Guest

    On Fri, 21 Jan 2005 20:09:49 +0200, <> wrote:

    >Im trying to reduce a 12v DC power supply down to 5v DC to power a computer
    >CD-Rom.
    >

    I don't know about .za but used computer power supplies can be had for
    almost free around here ... you'd get your 5v and anything else you
    might need.
     
    JeB, Jan 22, 2005
    #6
  7. Guest

    Bill Bowden Guest

    Bill Bowden, Jan 22, 2005
    #7
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