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AC or DC

  • Sjruupke Saturday, February 16, 2013 2:24 PM Reply
    Is this device 10~25V AC or DC input?
  • Bangster Saturday, February 16, 2013 4:23 PM Reply
    The title says it is DC:

    "(DC 10~25V)"
  • jayduey Saturday, February 16, 2013 9:29 PM Reply
    And, the lack of any diodes almost always indicates DC. Why they don't throw in a diode for protection, I don't know, but they didn't, so AC will make the magic blue smoke.
  • Ghlargh Tuesday, February 19, 2013 10:34 PM Reply
    A diode would drop the supply voltage and cause unnecessary heating.
  • jayduey Tuesday, February 19, 2013 11:06 PM Reply
    From my limited experience, a tiny wrong connection causes significantly more heating, generally accompanied by an odd burning smell, but it does lower the power requirement to virtually zero. Especially if the IC doesn't short.
    Besides, a reasonably high current diode will have very little heating with this kind of current.
  • BergExtreme Wednesday, February 20, 2013 2:05 AM Reply
    And, who pays money for such useless diode?
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