A 12-V regulated linear power supply of the type shown in Fig.10-1a is designed to operate with a 60-Hz ac voltage in a range of 120 V (+lo%, -25%). At the maximum load, the peak-to-peak ripple in the...

A 12-V regulated linear power supply of the type shown in Fig.10-1a is designed to operate with a 60-Hz ac voltage in a range of 120 V (+lo%, -25%). At the maximum load, the peak-to-peak ripple in the capacitor voltage is 1.0 V. The power supply is designed such that V
_dmin
– V_O
= 0.5 V in Fig. 10-lb. Calculate the loss of efficiency due to power losses in the transistor at full load, with the input voltage at its maximum. (Hint: Approximate the capacitor voltage waveform with straight-line segments.)