For the first one was called Inverting Voltage Amplifier. First we determined the cut off frequency. Second we found the amplitude gain and the phase difference for 3 values of frequencies. This is shown on our picture of the pre-lab below.
Then we set up our circuit and took a couple of pictures.
Then we took data for our 3 frequency values. The first picture shows the voltage out and voltage in when the frequency is one tenth of the cut off frequency.
The second picture shows the voltage out and voltage in when the frequency is the cut off frequency
The third picture shows the voltage out and voltage in when the frequency is ten times the cut off frequency.
Then we recorded the values of gain and phase difference and compared them to our predicted results.
We were pretty close!
The second lab is called OP AMP Relaxation Oscillator. For this one, we combined op amps with capacitors and resistors. There was no source.
First we set up the circuit on everycircuit.com
After we got it working, we built it, and measure the gain of the circuit.
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