Electronic Devices - Diode Applications - Discussion

piv for half wave rectifier circuit and for bridge rectifier circuit is max i/p voltage. But whereas piv for full rectifier circuit is twice the max i/p voltage applied across it. (of course this is one of the disadvantage of full rectifier ckt).

How it is possible to add diode value with the 2vp(out)? Please explain me.

@Kothapeta Siva Krishna.

It is not a disadvantage but the advantage because 2Vp (PIV) will allow 2 times reverse voltages to be bearable without damaging the diode.

Its value is 2vp-0.7. Because when practicle diode concider PIV decreasing. Higher PIV is disadvantage of M2 connection.

The answer should be 2vp - 0.7 because just like the full-wave rectifier where PIV is Vp - 0.7.
So in Full Wave Center Tapped PIV = Vp - 0.7 - Vp.
Hence PIV = 2VP - 0.7.

@All.

You measure PIV in the reverse direction.

(Anode) ---|i--- (cathode) here is the diode equivalent second approximation when measuring PIV you measure from right to left that is why for a full-wave centre tapped PIV for each diode would be 2VP+0. 7V.

Also, Higher PIV is not a disadvantage since having a higher PIV means a higher protection from being shorted in the reverse bias region especially if there is a large reverse voltage.