EE
169
Experiment # 8
Power Amplifiers
Class A & AB
Amplifier Design Specifications
- Vcc = +12 V dc
- Vee = - 12 V dc
- Zin greater than 40 kOhms
- Pout = 0.25 Wrms into a 8 Ohm speaker
Objectives
- Show all design calculations
- Build and test a Class A amplifer and prove you met all the specified
parameters
- Provide static and dynamic power dissipation measurements of the amplifier.
- Repeat the above steps for class AB amplifier.
Design Circuit of Class A Amplifier

Figure 17
Design Circuit of Class AB Amplifier

Figure 18
Last Modified: 4/16/98 by korman@seas.gwu.edu.