Ampliflier (inverting, non inverting,...)

Today we started class with learning about buffer ampliflier.
Vout = vin in the unity gain buffer amplifier.

Buffer ampliflier does not allow changes in voltage

We predicted following graphs of buffer ampliflier for vin and v out

Inverting Ampliflier : An inverting amplifier reverses the polarity of the input signal while amplifying it.

Vout= -Rf/R1 (Vin)

We did following example in class for inverting ampliflier

Non- inverting Ampliflier: op Amp circuit designed to provide positive voltage gain.
Following an example we did in class. 



Summing Apliflier: we did summing ampliflying lab
Following was our set up of the summing ampliflying circuit.
Vout= -R3/R1 ( Va+Vb) ; R3 = R1
Below is our inverted summing circuit design
we tested our design with va from -5 V to 5V

Following please find calculation for pre lab.

We created table with v out predicted vs actual. 

Difference Ampliflier: device that ampliflies the difference between two inputs but rejects any signals common to the two inputs.

way to recover noise in lots of equipment through difference ampliflier.

Difference Ampliflier subtract one wave from another wave. 

Following is the set up of our circuit for difference ampliflier lab.
V0= Vb-vA
% difference was due to the saturation.

Following is table of our Calcutta measured value vs theoretical calculated values. We also calculated % difference.