I'm working on a project to power a 56 volt BMS with a buck converter that bucks 120V DC (rectified from 120AC) to 56V DC, but I've gotten to the point where I'm hard stuck.
Here is what I have so far.
I'm most likely driving the N-Channel MOSFET wrong. I've tried to make higher voltage versions of other buck converters online but adapted it to the materials I have.
Ignore the voltage reading, also instead of an IRF840 I have a C2M0280120, but Multisim doesn't have it listed. Also, instead of that PWM generator in the bottom left, I have a TL494 at 250kHz in real life, but that isn't too relevant right now. I'd appreciate any insight.
The TL494 has a feedback function, but I'm not using it right now. Right now I'm trying to get a proper buck converter in its most basic form. The TL494 gives me duty cycle control with a potentiometer, so I'm using the duty cycle to check how well it accurately bucks at different duty cycles, but at the moment the circuit is simply not wired correctly at all and I'm stuck on finding how to solve that issue in particular.