A half-wave rectifier is connected to a transformer with a secondary voltage of 20 Vpk. The average output voltage is
A) 19.3 Vdc.
B) 13.7 Vdc.
C) 6.14 Vdc.
D) 12.3 Vdc.

Question

Quizplus · Accepted Answer

The average output voltage of a half-wave rectifier is Vavg = Vpk/π. Given Vpk = 20 V, Vavg = 20/π ≈ 6.37 Vdc. However, considering diode drop (typically 0.7 V), Vavg ≈ (20 - 0.7)/π ≈ 6.14 Vdc.

A Half-Wave Rectifier Is Connected to a Transformer with a Secondary