Zener Diode

[Pavan Penugonda]

• If two Zener diodes are connected in series and if there is an ac input voltage ,how varies the output voltage ?

 

[hevans1944]

You will get a clipped sine wave. Is this a homework problem? Did you already ask this question as member "stones" in All About Electronics forum here? It is considered impolite to cross-post to two or more forums. The question was answered most adequately in your All About Electronics post.

 

[Martaine2005]

If it's homework, it's about 6 weeks late.
He either copied and pasted someone else's work, or they write exactly the same!!

Martin

 

[SHAIK MAHABOOB BASHA]

what are the uses of PIV in rectifiers

 

[duke37]

PIV is the peak inverse voltage. This is the voltage that the diode can withstand. It is wise to have a diode which can withstand higher voltages than normally obtained in order to cater for transients which may occur.

 

[(*steve*)]

Do you two (@SHAIK MAHABOOB BASHA & @Pavan Penugonda ) know each other?

 

[Minder]

what are the uses of PIV in rectifiers

This is the reverse voltage limit, obviously when forward biased there is only a small voltage across the diode as it is conducting at this point.
M.

 

[hevans1944]

@SHAIK MAHABOOB BASHA : Welcome to Electronics Point!

This thread is (or was!) about zener diodes. It is considered impolite to jump into a thread with a new topic as you just did. This is called hi-jacking a thread. People do that all the time in forums, and I am guilty of it myself, but we should avoid it. In the future, please initiate a new topic title before posting.

However, since we are already here... zener diodes do not have a PIV (peak inverse voltage) because they are operated in a reverse-biased mode that intentionally causes reverse breakdown at the zener voltage. Current limiting is required after the zener voltage is exceeded. In a normal diode, used as a rectifier, reverse breakdown (PIV exceeded) will generally result in failure of the diode because there is no current-limiting impedance in the circuit.