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Power Amplifiers

Question # 00450889
Subject: Engineering
Due on: 12/30/2016
Posted On: 12/28/2016 02:19 AM

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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: 1k?, 50k?
  • 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 fr – 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 measurefoutand 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


fin

fout

1

fr =

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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Power Amplifiers (Tutorial Guide)

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Preview: well xxxxx cut-off xx the transistor xx cut-off for xxxx of xxx xxxxx of xxx wave This xxxxx much improved xxxxxxxxxx to xxx xxxxxxxxxx but xxxx heavy distortion xx the output xxxxxx Class x xx therefore xxx suitable for xxxxx amplifiers It xx however xxxxxxxx xxxx in xxxx frequency sine xxxx oscillators and xxxxxxx types xx.....
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