West Virginia University Properties of A Diode and A Transistor Lab Report

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write a lab report, and please answer the discussion questions and include the results of the experiment and any notes that may aid in justifying your results.


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Intro 1. Give all schematics 2. Design, simulation, build & test a. Make sure they take all node voltages and branch currents b. Compare simulated to actual results and % error 3. Simple LED from 221 4. BJT as a switch a. NPN 2N3914 b. PNP 2N3916 5. MOSFET as a switch a. NMOS 2N7000 b. PMOS ZVP3310a 6. Discussion questions A. Describe the basics of how an LED works. How is it different from an incandescent lightbulb? B. Explain the difference between the NPN and PNP circuits. How does the fundamental structure of the BJT lead to this result? C. Explain the difference between the NMOS and PMOS Circuit. How does the fundamental operation explain the circuit? Can you design either circuit so that the sources of the FETs are orientated the same? D. Bonus (5pts) Explain why on a MOSFET the connections are called the Gate, Source, and Drain. Draft x (D1) 82.9542mA- 82.9540mA 82.9538mA- 82.9536mA- 82.9534mA- 82.9532mA- 82.9530mA 82.9528mA- 82.9526mA- 82.9524mA- 82.9522mA- 82.9520mA- Os 6s 9s 12s 15s 18s 21s 245 27s 30s Draft6 Box D1 V1 R1 51 D 5 .dc V1 051 Draft9 I(D1) 30mA 27mA- 24mA- 21mA- 18mA- 15mA- 12mA 9mA- 6mA 3mA OmA+ 0.0V 0.5V 1.0V 1.5V 2.0V 2.5V 3.0V 3.5V 4.0V 4.5V 5.0V Draft9 x YI RI 01 تا فرقا dc v105.1
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SIMPLE LED LAB
The experiment involved testing the properties of a diode and a transistor using a
multimeter and LTSpice. We constructed the circuits manually on a breadboard and then on an
LTSpice. We connected a simple LED from 221 as shown in figure 3 on a breadboard and then
simulated in an LTSpice to obtain the results as shown in figure 2. We then connected a BJT
transistor on a breadboard and then simulated the circuit on the LTSpice as shown in figure 3.
We then obtained the results from the LTSpice as shown in figure 4. We measured all node
voltage and current branches using a multimeter.
The circuit results for a simple LED shows that the amount of current flowing through is
82.95mA and is reducing with time from 0-30 seconds. For a BJT transistor, the voltage through
the transistor ...


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