figred out
Last edited:
This is where you went wrong.Current heading up from 20,000 resistor in (bottom) Op-amp = 1/20,000
Vout2 for second (bottom) Op-amp = -(1/20,000)*40,000
For the amp (lower left hand) in question....isn't it 1 minus the drop across the resistor from the logic shown here:
http://www.youtube.com/watch?v=2SwT...es/detail/embed20.htm&feature=player_embedded
@ 22:30
Vout2 = 1 - (1/20k)*40k
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