cupoftea
Advanced Member level 6
Hi,
Just doing LLC transformer (ETD59 ungapped) for 2kW off 400Vdc to +/-160V….resonance frequency = 100kHz.
Txfmr is Np1_Ns1_Ns2_Np2 = 26_11_11_26
1 primary interleaves the two secondarys
Np1 and Np2 are in parallel. They are the “bread” layers.
Np1 and Np2 are totally 4 strands of 7/0.16mm TEX-ELZ
Ns1 and Ns2 are each 3 strands of 7/0.3mm TEX-ELZ.
We have 3.3W total of windings loss in the primary
We have 1.5W of windings loss in each secondary.
Would you say this is too much windings loss?
Just doing LLC transformer (ETD59 ungapped) for 2kW off 400Vdc to +/-160V….resonance frequency = 100kHz.
Txfmr is Np1_Ns1_Ns2_Np2 = 26_11_11_26
1 primary interleaves the two secondarys
Np1 and Np2 are in parallel. They are the “bread” layers.
Np1 and Np2 are totally 4 strands of 7/0.16mm TEX-ELZ
Ns1 and Ns2 are each 3 strands of 7/0.3mm TEX-ELZ.
We have 3.3W total of windings loss in the primary
We have 1.5W of windings loss in each secondary.
Would you say this is too much windings loss?