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Oscillation current DC / DC full bridge

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yelstor

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Hi.
I am using the ucc28950 for a DC / DC source. I am using the current sensor B82801C2245A200. As you can see in the image below (blue signal), the current oscillates a lot. I do not think it's ringing due to poor grounding, because I made a single board for the current sensor, and I'm not connected to the ucc28950 CS signal. I have done simulations, and it is apparently by the parasitic inductor of the transformer, but I am not sure. What else can cause this oscillation in the current, and how can I avoid it?
Thank you.
TEK00023.PNGpotencia_dc_dc.PNG
 

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