!Close switch when starting!
This is a simple adjustable power supply with provision for digital shutdown, it's not particularly accurate since the set voltage is derived from the unregulated input voltage but still good enough for basic uses, the MOSFET pass transistor can be replaced with a BJT if desired although a low Rds MOSFET is preferable.
EC seems to have serious issues with closed loop systems, I hope it's improved in future so I can stop adding switches.
