Diode Configs: Same Work | Rectify Me Please

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    Diode Diodes
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Two diode configurations, back-to-back and anti-parallel, are often confused but serve different purposes. Back-to-back diodes block current flow in both directions, while anti-parallel diodes allow current to flow in one direction, effectively rectifying the signal. Zener diodes can be connected back-to-back for voltage regulation in specific applications, such as double-sided clipping circuits. Rectifier diodes are also used in high-frequency switch-mode power supplies (SMPS) in a back-to-back configuration. Understanding the context of each configuration is crucial for their correct application.
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2 diodes connected back to back ...and 2 anti-parallel diodes...are these 2 configurations same...i mean work similarly?...i think NO...rectify me please if wrong...it might be a silly question but i would really appreciate the answer
 
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debajyoti datta said:
2 diodes connected back to back
So that whichever way current tries to flow, there will always be one diode which blocks the current? Draw it and try it.
 
in back to back connected diodes...current will never flow...right?
 
debajyoti datta said:
in back to back connected diodes...current will never flow...right?
Yes, that is so.

Yet there may be times when you do see a pair of diodes ("Zener diodes") connected exactly like that: back-to-back. What is this about?
 
Sir,i have seen that in double sided clipping circuits..so that output is between (Vz.+Vk) and - (Vz.+Vk)..actually my question arose from there
 
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Careful..never?...zener back to back make a voltage regulator
Rectifier diodes are sold back to back as a high frequency smps rectifer using the center point as the AC location, and signal diodes are connected back to back as a decision point (probably not the right term) but I see them all the time.
The latter two are 3 terminal circuits, so without context, the question could be misleading.
 
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