Electronics II and Lab
Power Amplifiers
INTRODUCTION
Discuss some of the basic differences between the operation of a class A, B and C amplifiers.
EQUIPMENT
- 1 power supply: 12V
- 1 transistor: 2N3904
- 2 resistors: 1kΩ, 50kΩ
- 3 capacitors: 0.1µF, 0.01µF, 560pF
- 1 inductor: 38.07µH
- Tektronix oscilloscope
- Waveform generator
PROCEDURE
Using Multisim construct the circuit shown below:
Diagram posted as attachment
Calculate the resonant frequency f r – show your work and record the answer in row 1 of the table.
- Use the Waveform generator to produce an input: 2.5Vpk and frequency set to the resonant frequency.
- Use the Tektronix oscilloscope to measuref outand record it in the table
- Take a screen shot of circuit showing the frequency measurement on the oscilloscope.
- Repeat steps a) and c) for each input frequency in the table.
RESULTS
|
|
f out |
|
|
1 |
f r = |
|
|
2 |
1500kHz |
|
|
3 |
300kHz |
|
|
4 |
546kHz |
|
|
5 |
273kHz |
|
|
6 |
873kHz |
|
Discuss the results.
CONCLUSION
What is the function of this circuit?
What did you learn?
Please fill out and use the following Lab Report Template when submitting your lab work.
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