Auctioneering Diode

Discussion in 'General Electronics Chat' started by Talguy, Apr 26, 2010.

  1. Talguy

    Thread Starter Member

    Aug 17, 2009
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    I have been reading up on power supply switching and auctioneering diodes come up a lot as an alternative to relays. What I can't find on them is a circuit diagram. Does anyone have a schematic for an auctioneering diode? I would like to see how they work
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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  3. SgtWookie

    Expert

    Jul 17, 2007
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    As another example, you might see something like this in the schematic of a battery powered device that also has an aux DC power jack:

    [​IMG]

    The diodes prevent the battery from being charged by the aux DC in, or discharged by the aux power if it's off.
     
  4. Talguy

    Thread Starter Member

    Aug 17, 2009
    14
    0
    Thanks guys that explains alot
     
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