Classwork
Once again, we began class with an elementary circuit to prime us for the labwork today and to help us refresh our 4B memories. Here we used KVL in order to find the currents across the resistors.
Resistors and Ohm's Law
Once again, we began class with an elementary circuit to prime us for the labwork today and to help us refresh our 4B memories. Here we used KVL in order to find the currents across the resistors.
Resistors and Ohm's Law
1: The picture above shows our circuit. Multimeter hooked up to a 100 ohm resistor and the waveform generator.
2: Above is our table of data of varied gate voltage from the waveform generator. Current and voltage across the resistor were measured at each point and recorded.
3: The screenshot above also shows the graphed data from Excel. We had a perfectly linear line according to the R^2 value of 1.
MOSFETs
1: Above is the layout of our circuit on the breadboard.
Circuit drawn out
2: The MOSFET lower threshold was found to be 1.3V (See 3). The upper threshold was found to be 4.6V (See 3)
3: Table of gate to source voltage vs. drain current.
[ ]
Table plotted on Excel.
4. The transistor is acting like a voltage dependent current source because the current that comes out of the source depends on the voltage that coming into the gate.
5. The graph above shows a best fit line on the spike. We found the slope of this line to be [ ], which is the gain.
MOSFETs
2: The MOSFET lower threshold was found to be 1.3V (See 3). The upper threshold was found to be 4.6V (See 3)
[ ]
Table plotted on Excel.
4. The transistor is acting like a voltage dependent current source because the current that comes out of the source depends on the voltage that coming into the gate.
5. The graph above shows a best fit line on the spike. We found the slope of this line to be [ ], which is the gain.
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