I am trying to design and make a flyback SMPS for about 26V 3 Amps.
I tried Power integrations designer with TOP switch at 66Khz switching frequency.
Since I have Viper100A with me, I tried to design in old STMicro's Viper design software.
Both cases I use same frequency and same transformer core and same input and output.
But the resulting transformer number of turns is very much different. Top switch gives very few turns but Viper gives more than tripple turns.
Anything I missed in the process or is there any special reason behind this?
I tried Power integrations designer with TOP switch at 66Khz switching frequency.
Since I have Viper100A with me, I tried to design in old STMicro's Viper design software.
Both cases I use same frequency and same transformer core and same input and output.
But the resulting transformer number of turns is very much different. Top switch gives very few turns but Viper gives more than tripple turns.
Anything I missed in the process or is there any special reason behind this?