bogdanfirst
New Member
ok, so i have a transformer wich has an output of AC of 11.8V with no load. the resistance of the secondary is aproximately 0.6Ohms.
i connect it to a rectifier bridge and a filtering cap, 1000uF or more if necessary. what output oc D.C. do i get with no load and with 1.5A load?
is it :
1. 11.8*2/sqrt(2)-1.2V (no load) or
2. (11.8-1.2)*2/sqrt(2) (no load)?
the 1.2 volts i consider from the voltage drop of the 2 diodes that the current passes trough.
well, i actually want to get 12V out of this transformer and i thought of using a 7812 votage regulator. the fact is that the regulator requires a drop of at least 3V on it. so i was curious if when i have the maximum load of 1.5A(but i actually don't think that my circuit will draw more than 1A-1.2A) the regulator can still suply me with 12V.
hope someone can clarify this to me.
i connect it to a rectifier bridge and a filtering cap, 1000uF or more if necessary. what output oc D.C. do i get with no load and with 1.5A load?
is it :
1. 11.8*2/sqrt(2)-1.2V (no load) or
2. (11.8-1.2)*2/sqrt(2) (no load)?
the 1.2 volts i consider from the voltage drop of the 2 diodes that the current passes trough.
well, i actually want to get 12V out of this transformer and i thought of using a 7812 votage regulator. the fact is that the regulator requires a drop of at least 3V on it. so i was curious if when i have the maximum load of 1.5A(but i actually don't think that my circuit will draw more than 1A-1.2A) the regulator can still suply me with 12V.
hope someone can clarify this to me.