Day 15 (Passive Circuits and Natural Responses)

We started the day by seeing the equivalent inductance of a circuit with multiple inductance.

We then looked at a simple source free circuit with a resistor and a capacitor.

We were then asked to use the previous equation to find how much time in time constants would be required to get the voltage to be 1% of the initial voltage.

We were then asked to find the formula for the power of the capacitor as a function of time.

After that we looked at a circuit and find the voltage and current as a function of time.

We then moved on to the lab Passive RC Circuit Natural Response. The pre-lab was to predict what would happen if we have a function generated voltage source across our circuit. Here is the picture.

Here are pictures of the circuit and the oscilliscope which show the change across the resistor.

We then moved on to source free circuits with inductors and resistors. We calculated the formula for the current across the inductor and then analyzed a circuit with a resistor and inductor.

We then did the lab Passive RL Circuit Natural Response. We did the pre-lab where we calculated the time constant of the circuit.

 

We then performed the lab and here are the pictures of the circuit and a picture of the oscilliscope showing the current across the inductor.

Day 14 (Capacitor Voltage-Current Relations)

The day started by looking at a new component to our circuits, capacitors. We went and calculated what would be the energy that is within a capacitor.

We then looked at what a voltage and current versus time graph would look like on a capacitor.

We then did the lab Capacitor Voltage-Current Relations. The pre-lab was to determine what the transformation would be on a capacitor if given a function for voltage and current. Here is the pre-lab.

Here is a picture of the circuits and the results on the oscilliscope and the data.

After the lab we continued to explore capacitors and reviewed on how to find the equivalent capacitance of a circuit of multiple capacitors.

Day 13 (Temperature Measurement System Design)

I was actually late that day and might have missed some of the beginning material but it appears that the day was mostly dedicated to the lab Temperature Measurement System Design, and it took longer than the entire day unfortunately. Here are the pictures of the pre-lab, the circuits, and the results.

 

Day 12 (Summing Amplifier)

The day started by doing a hypothetical problem where an inverting OP amp wouldn't have a negative voltage connected and we saw what would happen to a square wave that had both a negative and positive output.

We found that it acts like a transformation that involves shifting the square wave up but not amplifying by the gain of the circuit. We then analyzed a more complex circuit that had input voltages in both ports of the OP amp.

We then found the formula for what the output voltage for a non-inverting ideal OP amp.

 

We then covered how summing OP amps work and found the formula for the output voltage.

We then performed a lab on summing OP amps. The pre-lab asked us to calculate values for a circuit to have a specific set up. Here is the picture.

Then we did the lab and here are pictures of our circuit and data.

The beard had left the building

Then we moved onto the subject of difference amplifiers and we took a look at how to wave functions would look if they were subtracted.

The doodle is of CL4P-TP aka Claptrap

We then analyzed a circuit that is built as a difference amplifier. Here is the picture.