Electronic Devices - Diode Applications - Discussion
Discussion Forum : Diode Applications - General Questions (Q.No. 21)
21.
What is the PIV for each diode in a full-wave center-tapped rectifier? Note: Vp(out) = peak output voltage.
Discussion:
6 comments Page 1 of 1.
Smh said:
4 years ago
@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.
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.
(1)
Kothapeta siva krishna said:
1 decade ago
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).
Kier said:
5 years ago
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.
So in Full Wave Center Tapped PIV = Vp - 0.7 - Vp.
Hence PIV = 2VP - 0.7.
(2)
Junayd said:
1 decade ago
@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.
It is not a disadvantage but the advantage because 2Vp (PIV) will allow 2 times reverse voltages to be bearable without damaging the diode.
PRABHAT KUMAR SINGH said:
1 decade ago
Its value is 2vp-0.7. Because when practicle diode concider PIV decreasing. Higher PIV is disadvantage of M2 connection.
Gaurav said:
1 decade ago
How it is possible to add diode value with the 2vp(out)? Please explain me.
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