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wall mount transformer question — Parallax Forums

wall mount transformer question

youngbillyoungbill Posts: 54
edited 2011-01-09 02:24 in General Discussion
I am using a MW,,(meanwell) brand transformer,class2. It is 120 to 12volt ( with a selector switch, for 6 and 5 and 3 volt output.
Its regulated. My question is,,what is that piece of metal core at the end of the output wire(?
What is its purpose,and why does the transformer burn out if removed?
Is there a safe way to remove it,so i can use crimp connectors. Ie the wire has some sort of shield,,does this need to be connected to one of the wires? Thanks
I looked inside the piece and all that happens is the output ( or secondary ) just passes through this piece of round metal. It must be a inductive device for either over current,,or ??

Comments

  • LeonLeon Posts: 7,620
    edited 2011-01-08 09:45
    Image or URL?
  • ercoerco Posts: 20,260
    edited 2011-01-08 11:53
    Cylindrical ferrite choke for RFI?
  • Lord SteveLord Steve Posts: 206
    edited 2011-01-08 20:18
    Vehicle or Robot mode?
  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2011-01-09 02:24
    Not enough information to advise, especially about a safety issue.

    But you might consider an alternative wallwart without adjustible voltages if this is a fixed installation. The last thing you ever want to have happen is to accidentally feed your project too high a voltage.

    Since you mention 'wall mount transformer', one might guess that the loop you mention is intended to ground the unit properly.
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