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Thread: Need DC-DC PS with 12v @ 1.5a

  1. #11
    FLAC Mastero's Avatar
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    im very sorry to say this but it give me cool 1.68 amps on the 12vdc rail ...

    im running a seagate 40gb a sis530mobo and a three cooling fan ... but still the lm2587 doesnt heat up !

    mastero

  2. #12
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    I wouldn't expect it to...
    what transformer are you using, becaus ei have a feeling it is only rated at 630ma..
    so, it will melt sometime soon..

  3. #13
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    hey skinny ... buddy i need help on one thing ! i dont know if im using the rite space for it but still .... im sorry for it ...2k1

    Anyway tell me this http://www.astron.nl/~smirnov/poweroff.html

    delay power cutoff really works cause i saw smokes yesteday trying it out!

    mastero

  4. #14
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    Umm...
    I haveone question first....
    how am I supposed to know??
    anyway..
    what transformer are you using for your +-12volts..??

  5. #15
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    im using the same coilcraft transformer ... frankly i never checked the trans during performance... shall do it .. today ... thanx for the tip.

    but i have used it for atleast a year and no problem .. i have travelled for like 600kms running the player nonstop for 11 hurs but nothing happend....

    mastero

  6. #16
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    Hmm..
    should be okay as it is then, but if you add anything more, you might start having problems, unless the transformer is rated higher than 630ma... ??

  7. #17
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    i taught u very the smart one here !!! ...

    no jokes apart buddy do u have any idea on anything like this!

    mastero

  8. #18
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    shall check the data sheet its rite here !

    mastero

  9. #19
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    Wait, what are you asking now???
    still about the relay turn off thing???
    The circuit looks like it would work, maybe you made a mistake, or is that not possible??

  10. #20
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    skinny if u connect the vacc to +12vdc and ground to a 50ohms resistor which is conected to the +12vdc .... take a guess wat will happen ... its like touching the + and the - with a resistor in between ....

    rite?

    mastero

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