Electronics II and Lab Power Amplifiers

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.

1. Use the Waveform generator to produce an input: 2.5Vpk and frequency set to the resonant frequency.
2. Use the Tektronix oscilloscope to measuref_outand record it in the table
3. Take a screen shot of circuit showing the frequency measurement on the oscilloscope.
4. Repeat steps a) and c) for each input frequency in the table.

RESULTS

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.