ferrite core Sine wave inverter ( plz help )

[pakkiboy]

Dear members, I have designed full bridge rectifier for pure sine wave inverter using microcontroller and IR2110. I have given 12 V to ir2110 . in start i give 12 V DC to drain of mosfet , worked well with good sine wave , then i have increased voltage to 30 V and then to 60 V , everything fine ( good output sine wave ). Then i have tried to give 300 V DC to drain of mosfet. but mine circuit blown :sad: , i have tried this many times but mine circuit always blown for high voltage ... work well for 60-70 V DC when i have used power supply . any help plz plz .
Mosfet : irf 3205
Driver ic : ir2110
capacitor : 33 UF and then also of higher values .
Can anyone plz plz help me

Circuit
https://obrazki.elektroda.pl/4660519100_1379535325.png

 

[ALERTLINKS]

irf 3205 can not work at that high voltages. See datasheet. Try with IRF460.