For a 12-0-12 Step Down Center Tapped Transformer, what should be the direction of the winding on secondary coils (One End – CT, CT – Other End)? Should they be in opposite direction? If it is 'same direction' would it have any relation with primary windings direction?
Note: the transformer will be used in reverse to step up voltage in a DC-AC Square Wave inverter where the CT will always receive +ve DC voltage.
Also, is there any change required in terms of winding direction, if used in a Full Bridge inverter?
Best Answer
The two windings are wound in the same direction just like this little ferrite wound component: -
If the centre-tap wasn't there the orange and red would be one continuous winding in the same direction.
The direction that both have in reference to the primary winding is of no-importance for AC power transformers but, in other applications like transformer fed loudspeaker arrays it would make a massive difference at bass frequencies if one transformer had the opposite phase to another.
No.