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output short protection circuit

rohitsay89

Aug 23, 2012
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Aug 23, 2012
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I am making a totem pole digital output of 1.5-23v. i was searching for a protection circuit for the output short to ground and +24v dc. please help me out by sending a diagram of the circuit if possible.
this is the circuit with which i am working please replace the resistors
R2 with 470ohm
R3 with 120ohm
R4 with 220ohm
also the supply voltage is +24v and gnd.
 

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rohitsay89

Aug 23, 2012
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Aug 23, 2012
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this is a new edited diagram of the orignal circuit...
 

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Harald Kapp

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This is still not short circuit proof and has R3 instead of a current source.
 
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