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Calculation of Fan out for DTL when output is HIGH (Output transistor sourcing cureent)

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Discussion in 'General Electronics Discussion' started by Nanda sinha, Oct 8, 2015.

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  1. Oct 8, 2015 #1
    Nanda sinha

    Nanda sinha

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    Oct 6, 2014
    [​IMG]
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    I understood the concept of calculating fan out while output transistor is sinking but can't understand (the lines in last pic in red area marked by me) and calculate while sourcing .( Do we need Voh for finding fanout while sourcing?)
    In above example circuit I am able to understand about fan out calculation by current sinking but not fan out by current sourcing
     
  2. Oct 8, 2015 #2
    Bluejets

    Bluejets

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    Oct 5, 2014
    Apparently no images...??
     
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