/diy/ - Do It Yourself

I'm playing around with some boost converters and I can't figure out why my converter isn't quite working right. In simulation and on breadboard I am seeing a DC offset on the Vds waveform which should not be there which explains why my current draw is really high. With my power supply current limited to about 200mA it maxes out at 200mA and starts dropping voltage. I expect the current to spike when the MOSFET is on since it's basically a dead short but it shouldn't be conducting all the time which would result in a lower average current. But that DC offset (blue waveform) means the MOSFET is always conducting and idk why.

Additionally when I vary the frequency or duty cycle on my function generator the output voltage does not change. Why?