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3 – Op Amp: Characteristic Equation And Curve

Using this curve it is easy to find the voltage output in both previous examples:

In the first case vD was 0.75Volt and VOUT is obviously 7.5 Volt:

fourth-op-amp-characteristic-curve

In the second vD was 1.2Volt and VOUT is 10 Volt (it is not equal to 12Volt because it can't exceed VCC!):

fifth-op-amp-characteristic-curve