3/10 Super Mesh

Here we are introduced to the idea of node voltage analysis. The super node we found was the current source which re removed to define the super mesh which we used to solve for the different currents.

We went over the benefits of using Node Analysis vs, Mesh Current Analysis

We use mesh analysis to find the i1, i2, and i3.

Here is the lab we did in class where we hooked up the Analog Discovery to power the circuit and measure potentials across resistors.

These are the values of the resistors that we used in our circuit.

We measured the actual resistance of the resistors using the multimeter. On the left is the circuit we setup for the experiment.

For channel 1, we made the voltage increase linearly in a step function. In channel 2, (not in the picture), the function we used was shaped like a pyramid starting from 0 and ending at the same place as channel 1.

After we measured the voltages, we plotted them in a XY plot and got this graph as a result. Our graph did not come out very accurate. The graph we were suppose to have gotten was something called a Gummel Plot which measures current going into the collector vs current coming out.