Laptop charger as a power supply

Discussion in 'Power Electronics' started by John Berry, Jul 11, 2018.

  1. John Berry

    Thread Starter Member

    May 17, 2016
    63
    4
    Hello please could you help me, I am wanting to use this old laptop charger to power a DPS3012 Power supply module.
    I need to connect 2 banana plugs, what I would like to know is, can I just cut off the jack plug? or should I also cut off the suppressor?
    Thank you very much
    John... :)

    lead 1.jpg
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
    16,226
    4,763
    Preferably leave the inline suppressor on unless you have no choice.
    Max.
     
    John Berry likes this.
  3. John Berry

    Thread Starter Member

    May 17, 2016
    63
    4
    Thank you very much for your quick reply.
    John... :)
     
  4. wayneh

    Expert

    Sep 9, 2010
    14,872
    5,374
    I doubt you'll ever know the difference but I'd leave in on if I could. It can still do its original function if it's still there.
     
    John Berry likes this.
  5. Tonyr1084

    Well-Known Member

    Sep 24, 2015
    2,224
    492
    I would bet that if he had no choice but to cut off the suppressor he could probably strip it down to the bare toroidal core halves and just reattach it further up the line. Use tape to hold it together and in place. OR if you can find shrink sleeving that will accommodate that large an item and still shrink down sufficiently - - - .
     
    John Berry likes this.
  6. John Berry

    Thread Starter Member

    May 17, 2016
    63
    4
    Thank you very much Wayneh for your reply.. :)
     
  7. John Berry

    Thread Starter Member

    May 17, 2016
    63
    4
    Thank you for help it is much appreciated... :)
     
  8. John Berry

    Thread Starter Member

    May 17, 2016
    63
    4
    Hi folks, I have cut off the jack that is no longer needed, and I was surprised to see that one of the wires is stripped bare encircling the other wire.
    Is there a reason for this please ? Charger lead 1.jpg
    Thanks again
    John.. :)
     
  9. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
    7,588
    1,255
    Thats the Negative lead, and it's used as a Screen.
     
    John Berry likes this.
  10. John Berry

    Thread Starter Member

    May 17, 2016
    63
    4
    Ok Dave, Thank you very much.. :)
     
  11. ian field

    AAC Fanatic!

    Oct 27, 2012
    6,222
    1,121
    Its best to leave the ferrite collar on unless its in the way.

    Sometimes you can strip the outer PVC with the collar on it, if you have a sharp knife and are very brave - you can cut away the moulded plastic and relocate the collar wherever you want it.

    An easier option is replace it with a split collar, 2 halves and a sort of clip together plastic cage. I used to salvage them from scrap VGA monitors, but someone somewhere must sell them.

    Before I switched to DAB radio, I had to clip ferrite collars to everything in sight for reception without digital hash.
     
    John Berry likes this.
Loading...