Hello everyone, I am having an issue where the output of the op amp for the following circuit works fine under no load and allows me stable output voltage. When I close the switch and apply the load, the output voltage decreases (as one would expect), however, the op amp output doesn't increase so the duty cycle doesn't increase and the voltage stays constantly below my target. Any ideas as to what would make an opamp not give a higher output when the non-inverting pin is higher than the inverting pin? Have any of you encountered something like this before? Thanks for any help!