Question

Peak Inverse voltage (PIV) for a half wave rectifier if input is E0?

(A) E0/2

(B) E0/4

(C) E0π

(D) E0​

Answer 1

Answer:

Hello!

( C) E0π

Explanation:

It is the maximum voltage that the rectifying diodes has to withstand, when it reversed-biased. The peak-inverse-voltage (PIV) rating of a diode is of the primary importance in the design of rectification systems.

During negative half-cycle of the input voltage, the diode is reversed biased, no current flows through the load resistance. RL and so causes no voltage drop across load resistance RL and consequently the whole of the input voltage appears across the diode. Thus the maximum voltage, that appears across the diode, is equal to tha peak value of the secondary voltage i.e. VSM. Thus for a half-wave rectifier

PIV = VSM

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