Heyya ... idk why its not working when i simulate it. i feel like somethings off with my connections. pls help
I’ve designed this power supply to handle a single switchable output that toggles between a positive adjustable range (1.25V to 20V) using an LM317 and three fixed negative rails (-5V, -10V, -15V) using 79XX regulators. The plan is to use a dual-polarity setup with a common ground reference so I can pull both positive and negative DC from the bridge rectifier. To meet the "single output" requirement, I'm using a selector switch to route the chosen voltage to one main output terminal and an LED indicator. My goal is to keep the ripple factor at 0.10\% with a 30mA load, but I’m mainly looking for a second set of eyes on my schematic to make sure my grounding is right and that I haven't accidentally shorted the transformer secondary back into the DC return