Spencerleehorton
Well-known member
Hi All,
It seems it's always me that has horrendous problems with such simple things!!
I'm wiring up some power transformers (txf) into two 1n4007 half wave and 4 x 1n4007 for diode bridge.
I have 3 different txf, one brand new 2 x 18v toroidal and two other txf.
I cant understand what is happening as I've always been taught that dc voltage after diodes should be higher but I cant get anything higher the dc side?
The 2 x 15v 6va txt on one winding shows 19.98vac, same on the other winding, when put through two 1n4007 diodes it measures 9.56vdc?
Same txf put through diode bridge measures 7vdc and 10.14vac on bridge but measures 19.97vac when disconnected?
The 2 x 18vac toroidal is brand new put through the diode bridge it measures 42.4vac with both windings connected but 37.7vdc?
In the off position of my power switch it also measured 1.160v dc or 0.554vac?
Help me please!!!!
It seems it's always me that has horrendous problems with such simple things!!
I'm wiring up some power transformers (txf) into two 1n4007 half wave and 4 x 1n4007 for diode bridge.
I have 3 different txf, one brand new 2 x 18v toroidal and two other txf.
I cant understand what is happening as I've always been taught that dc voltage after diodes should be higher but I cant get anything higher the dc side?
The 2 x 15v 6va txt on one winding shows 19.98vac, same on the other winding, when put through two 1n4007 diodes it measures 9.56vdc?
Same txf put through diode bridge measures 7vdc and 10.14vac on bridge but measures 19.97vac when disconnected?
The 2 x 18vac toroidal is brand new put through the diode bridge it measures 42.4vac with both windings connected but 37.7vdc?
In the off position of my power switch it also measured 1.160v dc or 0.554vac?
Help me please!!!!