Inverting Voltage Amplifier Lab
In this lab assignment, we concerned with the steady-state response of electrical circuits to sinusoidal inputs. The input and output signals both have the same frequency, but the two signals can have different amplitudes and phase angles. We then measured the gain and phase responses of an inverting voltage amplifier circuit and compare these measurements with expectations bases on analysis.
This is the pre-lab with the picture of the circuit. On the top right corner, we calculated the cutoff frequency of the circuit, the amplitude gain, and phase difference.
Picture of the 100Hz.
Picture of the 1KHz.
Picture of the 5KHz.
The chart of the bottom half shows the measurements to calculate the amplitude gain, phase difference, and it is compared with the results from the pre-lab with the %error.
OP Amp Relaxation Oscillator Lab
A "relaxation oscillator" is constructed by using some type of device that will act as a switch when a certain voltage is applied to one of its terminals. The "switching voltage" is usually the voltage across a capacitor that is being charged or discharged accordingly.
We determined the value of R using the formula for the period T.
This is the picture of the circuit.
This is a picture showing the voltages for the OP Amp relaxation oscillator.
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