Here's a relatively simple boost converter circuit that uses two NE555 timers and one op-amp (LM358 in my case) co make a self regulating boost converter.
Thanks for watching!
0:00 Intro
0:34 PWM circuit
2:20 Boost circuit
2:45 Choosing the coil
4:12 Feedback loop
5:56 Outro
BG music by Karl Casey @ White Bat Audio (Rain City)