SHield Winding in Forward converter(TFS7707H)
Posted by: Kalpesh Diyora
on
Dear,
We need to add shieild winding to get benifit in EMI.
What should be the best position of the shiled winding ?
Below are the transformer construction that we have.
Input=38VDC
Output:12V/15A (ETD29 Geomatry)
Construction:
Winding -1 -1st half primary (2Layer)
Isolation TAP
Winding-2 -Secondary (Foil construction-6Turns)
Isolation tap
Winding-3 - 2nd Half primary
Outer Wrap
Where should be the start and finish of the shileld?
Regars,
Kalpesh
Hi,
I am assuming there is typographical error in the input voltage (38VDC instead of 380VDC).
I would place the shiled winding between 1st half of primary and secondary (Connect start of the winding to 380VDC bus and other end of the winding leave it floating).
Regards,
PI-NANO