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Original question:
in this circuit voltage across R2 is 16.66, but why output voltage is zero? instead of saturating at VCC?
in this circuit voltage across R2 is 12.5, and this circuit works well
I'm simulating this circuit, and also i have made it practically, in both cases for input voltage ( voltage across R2) upto certain value this circuit works well, but as the input voltage across (Voltage acorss R2 ) reaches near VCC supply voltage , output voltage suddenly drop to zero from 13 voltage! please suggest how i can eliminate this problem, waiting for an early reply please.
in my circuit V1 voltage will vary from 0 to 24 volts, and i want that as voltage across R2 becomes greater than or equal to VCC voltage output saturate at VCC instead of suddenly dropping to zero from 13 volts.
