NC Contact in Power Jack

Discussion in 'General Electronics Chat' started by tracecom, Sep 8, 2011.

  1. tracecom

    Thread Starter AAC Fanatic!

    Apr 16, 2010
    3,869
    1,393
    Is this the intended use for the normally closed contact in J1? If not, what is it for?

    Thanks.
     
    Last edited: Sep 8, 2011
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Sure, that's a valid use. Much of the time, a jack like J1 would be used to connect an aux power supply to something that is battery powered. You'd usually want to disconnect the batteries while powered from the aux supply.
     
  3. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,388
    1,605
    I'm unsure what TB1 is doing. If it is an alternate supply to J1 then yeah, it gets disconnected when you plug into J1 and that works.
     
Loading...