Works slowly, increase period of PWM to speed up but this causes loss of accuracy.
EveryCircuit can't simulate this well so a work around is to open the switch near the nfets and then play, and then close the switch. Somehow, this works.
To adjust output voltage, adjust the DC voltage source on the right of the circuit between 10V to 70V. Doesn't work well outside that range. Will be adding mechanisms to allow lower voltage. To allow higher voltages, increase the limit of the op-amp connected to the nfets gates
Please comment if you have any suggestions to improve the circuit. Thanks!!