Full wave rectifier efficiency

Discussion in 'Homework Help' started by Manoj Sahu, Oct 6, 2014.

1. Manoj Sahu Thread Starter New Member

Sep 29, 2014
8
1
How to calculate the efficiency of full wave rectifier? Also, prove that efficiency of Full wave rectifier is 81.2%

2. Papabravo Expert

Feb 24, 2006
11,129
2,172
Write the expressions for DC power out and AC Power In. The ratio of those two expression will be the efficiency, just like in all the other cases where you have Power Out < Power IN

3. crutschow Expert

Mar 14, 2008
16,513
4,444
The efficiency depends upon the diode drops at the load current and the AC voltage value . The efficiency is not a fixed value independent of these variables.

4. Papabravo Expert

Feb 24, 2006
11,129
2,172
Power Out and Power In can be measured or theoretical. Power out definitely depends on the diode drops.

5. wayneh Expert

Sep 9, 2010
13,611
4,409
I can prove that it is almost NEVER that exact value, except in a very specific set of circumstances, which you have not provided us.