Half wave rectifier Solved Problems

Problem 1

Calculate the following for the rectifier circuit shown in Figure

1. Output polarity
2. Peak and average output voltage, taking into account the diode’s barrier potential
3. Output ripple frequency

Solution Problem 1

1. Negative pulsating dc


2. Vin peak = 169.7 V
   Vs = ( Ns / Np ) x Vp
         = ( 1/8 ) x 169.7 V peak = -21.2 V peak
   Vout = Vs - V diode
            =21.2 V - 0.7 V = -20.5 V
   Vavg = 0.318 x Vout
            = 0.318 x 0.5 V = -6.5 V


3. Output ripple frequency = input frequency = 60 Hz