Hi Jim,
Thanks for contacting us regarding your WEBENCH design. Your output is fairly high current and probably beyond what WEBENCH would consider "standard." The WEBENCH designer algorithm designs the transformer taking into consideration several factors…
Rogers
At this voltage and power level we recommend one of our active clamp forward controllers like UCC2897A. http://www.ti.com/tool/PMP8861 is an example design that is close to your design target. Please note that at 1.2V output is below the range of…
Hello Sreenivasa,
If this design was made for a 12V 2A (24W) output then you will not be able to get a 4A (48W) output without redesigning the circuit.
You can use the Excel calculator for the UCC2897A to help with the component selection and you can…
Chen
We do not have a reference design with UCC28740 with such a low input voltage nor do we recommend it be used with such a low voltage. UCC28740 is designed for offline AC/DC supplies where the input voltage is typically 85-265 VAC. It includes features…