Operational Amplifiers I

Introduction: The purpose of this lab is to learn how to use an Operational Amplifier to control the voltage input into a specific voltage output.

Here we are building the circuit.

This is us finishing the circuit.

Here we are measuring the voltage of the source.

PSpice Tutorial

Introduction: The purpose of this lab is to learn and how to use PSpice and its functions to analyze circuits. We will also learn to find Thevinin and Norton equivalents using the DC sweep and graphing functions.

Here is the first circuit we had to create, we learned to show the amps and volts across everything

Here we are learning how to use the DC sweep function for a simple circuit

Changing the parameters in the DC Sweep function

Circuit with an op amp, and using dc sweep.

Circuit we were suppose to build

Max Power Lab

Introduction:
To confirm that there is maximum power transfer to a load resistance when the load resistance is the same as the Thevenin resistance of the circuit.

Procedure:
Step 1: Obtain 5.6k resistor and 10k potentiometer. 

Measuring the resistance of a resistor

Step 2: Assemble the circuit

The circuit as it is being set up

Step 3: Record the data and gradually increase the resistance slowly

Step 4: Theoretical values

using voltage divider,

Theoretical V0 (V)	Theoretical Power (W)
3.25	0.000721
3.20	0.000746
3.11	0.000771
3.07	0.000780
3.03	0.000798
2.96	0.000814
2.88	0.000829
2.81	0.000845
2.75	0.000861
2.67	0.000873
2.62	0.000878
2.48	0.000893
2.26	0.000904
2.25	0.000901

Part B
 Resistor actual values

Setting up the circuit.

Logger Pro Graph.

Thevenin Equivalents

Introduction: In this lab, the objective is to learn how to reduce a circuit full of resistors, power supplies, current sources to its Thevenin equivalent.

Procedure: 

This is the circuit we will be trying to reduce

Step 1:
a)Use nodal analysis to establish the open circuit. We get V = 8.6V
b)Use nodal analysis to calculate Vy. We get Vy = 5.07V
c) use the equivalent circuit of Figure 3 to determine RL2. We get RL2 to be 879

Step 2: Measure any components before assembling the circuit.


Step 4: Build the Thevenin Equivalent Circuit on the Breadboard. 

Here we are assembling the circuit

Step 5: Perform the experiment and record the data.

Step 6: Use logger pro to plot power vs load resistance.

It didnt go quite as expected, here is our graph.