Inverter

Discussion in 'Homework Help' started by lkwah86, Mar 20, 2007.

  1. lkwah86

    Thread Starter Member

    Mar 9, 2007
    22
    1
    What possible reasons that the output of a particular inverter is stuck LOW while its input is pulsing?
    What possible reasons that the inverter output is stuck at an indeterminate logic level?
     
  2. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
    6
    Hint for first question:

    Back in the early 80's, ET2 Poole and I were sent out to the flight-line at Barber's Point NAS to determine why the automated weather recording station was not reporting in to the tower. Using the six-step troubleshooting method, we quickly determined the fault was due to the charred remains of a gekko that had unwisely chosen to rest atop the power input terminals.

    Hint for the second question:

    What is the voltage level across an unconnected TTL input?
     
  3. lkwah86

    Thread Starter Member

    Mar 9, 2007
    22
    1
    I dun understand it. i just want to learn...
     
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