Consider an idealized class-B output stage shown in Figure P8.22. The output stage is to deliver \(50 \mathrm{~W}\) of average power to a \(24 \Omega\) load for a symmetrical input sine wave. Assume the supply voltages are \(\pm n\) volts, where \(n\) is an integer.

(a) The power supply voltages are to be at least \(3 \mathrm{~V}\) greater than the maximum output voltage. What must be the power supply voltages?

(b) What is the peak current in each device?

(c) What is the power conversion efficiency?

Transcribed Image Text:

V+ A + VA 0 (iB RL Figure P8.22 B 1 +