full wave rectifier

Thread Starter

sarika rajesh

Joined Jun 3, 2014
3
Hi,

from so many days am not clear at full wave bridge rectifier calculation.
consider i have used 8-0-8 step up trnasformer and bridge rectifeir is designed.
what will be the voltage at transformer secondery and volatge at bridge rectifier output.
requesting you to help me with clear gud example of full wave bridge rectifier with calculations.

Thank you
Sarika
 

ScottWang

Joined Aug 23, 2012
7,509
AC 8-0-8 → Full wave rectifier → Cap filter → Vout
Vout = 8Vac x 1.414 - (0.7V*2) = 11.3Vdc - 1.4Vdc =9.9Vdc
 
Last edited:

BobTPH

Joined Jun 5, 2013
11,677
Depends on which kind of full wave rectifier you are talking about. If you use one diode from each of the ends and use the center tap as ground, you will get 8 * 1.414 -0.7 = 10.6V.

If you place a full wave bridge across the two ends, leaving the center tap unused, you get 16 * 1.414 = 2 * 0.7 = 21.2V

Bob
 

ScottWang

Joined Aug 23, 2012
7,509
Depends on which kind of full wave rectifier you are talking about. If you use one diode from each of the ends and use the center tap as ground, you will get 8 * 1.414 -0.7 = 10.6V.

If you place a full wave bridge across the two ends, leaving the center tap unused, you get 16 * 1.414 = 2 * 0.7 = 21.2V

Bob
Oh, I forgot the 8V-0-8V no need to use the full bridge, so only need to reducing 0.7V, thanks.
 
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