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Problem with Flyback converter design.

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Skanda9

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Hello everyone,
I am doing my final year project and i need to design a flyback converter as a part of it. Kindly help me with this regards. My requirements are-
input voltage=12v
output voltage=300v(peak)
output current should be constant 100mA( which is a more tricky part that i dont know how to make current constant)
I need to know-
1)what is the turns ration( including number of turns in primary and secondary)
2) inductances of both primary and secondary
3) diode specifications
4) capacitor specifications ( including charging time and discharge time)
5) Mosfet selection
6) Max and min duty ratio
Let me know about this asap. Kindly do the needful.
If possible send me the solutions along with equations used for calculations.
 

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