PMP11371: UCC28740DR for Switchng IC

Hi Vishwanath, can you please be more specific about your issue here? Transformer saturation can happen for a few different reasons, usually if you try to increase the current beyond the capabilities of the transformer. The transformer would need to be redesigned.

Thansk,

Robert 

Dear sir,I am we are using same transformer which is used by the designer in refrence design RLTI-1174.but the power supply increasing more heat at TVS diode sesction and Transformer Core. i have checked all componets all components are same as refrence design part number.

Vipin,

Did you change the board layout or any other components?

Thanks,

Robert