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MOSFET Heating Issue in Boost Converter with SG3525 and IRFB4110

Posted by Afuevu
3:38 am
21/11/2024

I am working on a boost converter to step up DC voltage from 12v to 450v. My switching frequency is 45khz on each channel of the sg3525. I am using irf3205 as my switch. I observed that when i change the switches to another MOSFET like irfb4110 of higher rating the switch/MOSFET gets heated up even with no load at the output, has anyone faced similar issues before? my gate resistor is 10R and my gate to source resistor is 10k