Project - DC DC CONVERTER 1KW
TOPOLOGY USED PUSH PULL DC DC CONVERTER
INPUT 42 TO 58 V DC , OUTPUT 350 V
SWITCHING FREQUENCY 55 KHz
HOW TO CONSIDER RAMP VOLTAGE HEIGHT IN ISET PIN (RSET) RESISTOR.
PLEASE SUGGEST SOME RELATED REFERENCE DESIGN FOR PROJECT
Hi Vinod,
The power stage designer tool really useful for calculating transformer turn ratio and getting a first pass on current and voltage stresses on the primary and secondary side switches.
Its quick to download and install, 
There are a number of good magnetics design guide in the TI library,
These should be helpful in designing the transformer.
TI does have a push-pull reference design at this power level. You may consider a full bridge as an alternative option at these power level, something like the LM5045 may be an alternative to look at.
Regards
Peter
