Hello guys, i know that windings interleaving allows to reduce flux leakage and increase efficiency of a transformer.
It is like a sandwich - 1st primary layer, 1st secondary layer, isolation, 2nd primary layer, 2nd secondary layer...
But how to wind it this way? I am developing power transformer for dc/dc converter (2-switch forward), and i want to try to add a Faraday shield between windings to reduce capacitance (should i connect this shield to system ground?), and i also want to try interleaving to reduce flux leakage.
So, i have ETD54 core and etd54 bobbin (it has round cross-section). My primary is 34 turns (i use 5 wires to route primary to reduce losses - so the primary is 5 wires 0,5mm diameter each which are turned over the bobbin 34 times. These 5 wires are going in line - i attached a photo to show it ). My secondary is litz wire with 0.071mm diameter (1075 strands).
If put all secondary together, it is an isolated wire with 3.5mm average diameter.
So - how to use winding interleaving with such boobins and windings - is it even possible?
If u guys have ever made transformer with interleaved windings (it doesn matter which kind of transformers) please tell me how to do it (at lease partial interleaving).
And so - should i ground Faraday shield between winding and is it helpfull to reduce current spikes on MOSFETs?
Thanks a lot guys, i wish you can help me.
It is like a sandwich - 1st primary layer, 1st secondary layer, isolation, 2nd primary layer, 2nd secondary layer...
But how to wind it this way? I am developing power transformer for dc/dc converter (2-switch forward), and i want to try to add a Faraday shield between windings to reduce capacitance (should i connect this shield to system ground?), and i also want to try interleaving to reduce flux leakage.
So, i have ETD54 core and etd54 bobbin (it has round cross-section). My primary is 34 turns (i use 5 wires to route primary to reduce losses - so the primary is 5 wires 0,5mm diameter each which are turned over the bobbin 34 times. These 5 wires are going in line - i attached a photo to show it ). My secondary is litz wire with 0.071mm diameter (1075 strands).
If put all secondary together, it is an isolated wire with 3.5mm average diameter.
So - how to use winding interleaving with such boobins and windings - is it even possible?
If u guys have ever made transformer with interleaved windings (it doesn matter which kind of transformers) please tell me how to do it (at lease partial interleaving).
And so - should i ground Faraday shield between winding and is it helpfull to reduce current spikes on MOSFETs?
Thanks a lot guys, i wish you can help me.