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CUI power supplies — Parallax Forums

CUI power supplies

metron9metron9 Posts: 1,100
edited 2008-01-17 16:05 in General Discussion
What is in the little bulbuious plastic thing on the end of the wire? This is a 5V 4AMP supply, I solder 5 sets of wires to the end for my acoustic lights supply but i wonder what is in this thing. If I distroy it to find out I am not sure that I will even know what it is.


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Think Inside the box first and if that doesn't work..
Re-arrange what's inside the box then...
Think outside the BOX!
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Comments

  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2008-01-17 00:04
    It's a switching power supply. The switching is done on the mains side of the transformer at a high frequency to keep the magnetics and filter components small. That's the reason it's so compact.

    -Phil
  • Paul BakerPaul Baker Posts: 6,351
    edited 2008-01-17 00:18
    The bulb you are refering to is an RF choke (sometimes called a balun), it's there to minimize high frequency noise from traveling through (in either direction). You could probably remove it but you may find your supply to have more noisie.

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    Paul Baker
    Propeller Applications Engineer

    Parallax, Inc.

    Post Edited (Paul Baker (Parallax)) : 1/17/2008 12:24:33 AM GMT
  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2008-01-17 01:20
    LOL! I thought he meant the other end of the wire! Cripes, I feel like an idiot. blush.gif

    -Phil
  • Paul BakerPaul Baker Posts: 6,351
    edited 2008-01-17 02:27
    Yeah I was wondering why you didn't answer his question, now I know you were describing the BIG piece of plastic [noparse]:)[/noparse]

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    Paul Baker
    Propeller Applications Engineer

    Parallax, Inc.
  • metron9metron9 Posts: 1,100
    edited 2008-01-17 16:05
    Since there is enough wire to connect the array of plugs without removing it, I will leave it intact.

    Thank's for the replys.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Think Inside the box first and if that doesn't work..
    Re-arrange what's inside the box then...
    Think outside the BOX!
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