D 4.73 Consider the full-wave rectifier in Fig. 4.22(a) when the transformer turns ratio is such that the voltage across the entire secondary winding is 20 V rms. If the input ac line voltage is 220 V rms and it fluctuates by as much as ±10%, find the required PIV of the diodes. (Remember to use a factor of safety in your design.)
30.4 V (45 V with 1.5 × safety factor)
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