ELECTRONIC II Homework

ELEC 161 QUIZ 2

All the questions carry same weight

1. Calculate the efficiency of a transformer-coupled Class A amplifier for a supply of 12 Volts and an output V(p) = 9 Volts. Show your calculations.

2. With the help of sketches, explain the operation of a Class B amplifier. 3. For a Class B amplifier, an 18-Volt peak signal to a 16-ohm load (speaker) and a power supply of Vcc = 24 Volts, determine the input power, output power, and the circuit efficiency. Show your calculations. 4. For a Class B amplifier with a supply voltage Vcc = 27 Volts and driving a load of 16 ohms, determine the maximum input power, output power, and transistor power dissipation. Show your calculations. 5. Explain the concept of harmonic distortion as it applies to an amplifier. Provide appropriate sketches and the equations.