So what’s so exciting about this single-voltage linear power supply ... The basic circuit is dead simple: a transformer, a full-wave rectifier, an LD1085 adjustable regulator — a low-dropout ...

[Afroman] contacted us to share his new video on the LM317. The humble LM317 adjustable voltage regulator ... LEDs and laser diodes. While this circuit may not be as efficient as an LED driver ...