Aug 19, 2015 #1 P p11 Banned Joined Jan 25, 2014 Messages 177 Helped 0 Reputation 0 Reaction score 0 Trophy points 16 Activity points 0 how does bleeder resistance help in voltage regulation ?please explain.
Aug 20, 2015 #2 D.A.(Tony)Stewart Advanced Member level 7 Joined Sep 26, 2007 Messages 9,004 Helped 1,823 Reputation 3,645 Reaction score 2,197 Trophy points 1,413 Location Richmond Hill, ON, Canada Activity points 59,563 A full wave rectified bridge delivers 1.4 x the average voltage to the caps when there is no load. When you have some current limiting series resistors and a 10% preload the unregulated voltage variation can reduce 10 to 20% from 40% or X% where the X% ripple voltage equals the X% drop in average voltage , so it never reaches the root(2) peak voltage
A full wave rectified bridge delivers 1.4 x the average voltage to the caps when there is no load. When you have some current limiting series resistors and a 10% preload the unregulated voltage variation can reduce 10 to 20% from 40% or X% where the X% ripple voltage equals the X% drop in average voltage , so it never reaches the root(2) peak voltage