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TIDM-BIDIR-400-12: How to calculate the output gain? Np:Ns = 4: 1

Part Number: TIDM-BIDIR-400-12
Other Parts Discussed in Thread: CONTROLSUITE

Hi Ti team,

I  working on a bidirectional phase shift full bridge. The problem I found so far with the topology in buck mode.  Would you please tell me how to calculate the Vin=Vo/(N+?) I can't understand how the secondary side operated.

Here is my simulation and waveform. I am guessing if the transformer ratio is primary: secondary = 4:1, so V_HV=300V, 300/4=75V will reflect secondary, and I use the 45-degree phase shift. All cycle is 360 degree.

Is it possible to be 75V/4=18.75? Please help, thanks~

Sway

Vgs1: 0~180

Vgs2: 0~90, 270~360.

Vgs3: 90~270.

Vgs4: 180~360.