Hi Team,
In LLC & Transformer Design steps, output voltage sensing is fixed at 54V DC, in my design requirement output voltage range from 26V to 70V variable for charger application.
Kindly suggest or advice design change or calculation should i follow please.
Transformer design, follows same or need to go with any other methods. Do please help me to design this
Thanks
Venkatesh
Hi Venkatesh,
for transformer turn ratio, basically it is determined by normal output voltage and input voltage, you can refer UCC25640X page 43 for details, for wide range output LLC, we need to select Q,Ln based on gain requirement Mgmax,Mgmin, https://www.ti.com/lit/zip/sluc675 this calculation sheet provide some guide and tool.let me know if any other questions.
