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  1. Join Date
    Jan 2008
    Posts
    4,726
    #11
    what you need is a SWITCHING POWER SUPPLY... those being used in CCTV system.. its regulated 12V up to 30 amps.. you can also combine 2 power supply to make it 60 amps..

    you can buy that at around 2,500 petot each.. they can drive your amps without draining the battery plus its regulated so you will not hear noise

  2. Join Date
    Jul 2008
    Posts
    935
    #12
    Quote Originally Posted by yapoy86 View Post
    what you need is a SWITCHING POWER SUPPLY... those being used in CCTV system.. its regulated 12V up to 30 amps.. you can also combine 2 power supply to make it 60 amps..

    you can buy that at around 2,500 petot each.. they can drive your amps without draining the battery plus its regulated so you will not hear noise
    Hi SiR,

    Thanks for the infos, about this switching power supply, pwede ko ba iwanan overnight na naka-charge yung battery ng kotse w/o overcharging the car batt? Sa battery ng motorcycle pwede rin bang iwanan overnight or kailangan kong orasan?

    Thanks

  3. Join Date
    Jul 2010
    Posts
    570
    #13
    Hindi problem ang charging current sa car battery unless low charge na ito. Ang problem ay dapat increase yun dc output into 14.5V same as alternator charging voltage. Dapat dagdagan ang winding +12v secondary winding. Pero mahirap magsiksik ng extra winding sa ferrite transformer. Hindi mo naman pwede tangalin yun +5V winding dahil kailangan ito ng referance for overvoltage control ng pwm ic.

  4. Join Date
    Dec 2005
    Posts
    39,162
    #14

    Sige subukan mo bro.,- at balitaan mo kami rito...

    17.2K:type:

  5. Join Date
    Jun 2011
    Posts
    125
    #15
    just purchase a battery charger and forget about your question. you don't buy a shoe brush to use as a toothbrush, vice versa

  6. Join Date
    Oct 2002
    Posts
    10,820
    #16
    malay mo naman shoe brush ang toothbrush nya

    kahit trickle charger di pwede ang comp power supply, sinabi na nga na 12 volts lang ang output nyan e, too low to push any charge to a lead acid battery. kung pwepwede yan e di sana nauna na ako gumawa nyan, sa tanda kong ito ba. ka-mura ng battery charger eh, may trickle charge function pa at siguradong hindi ma-overcharge ang battery mo.

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Can a Computer Power Supply Used as Car Battery Charger