Given a noisy input and a variable load, a voltage regulator will give a nice clean ... driving LEDs and laser diodes. While this circuit may not be as efficient as an LED driver module or ...

[Septillion] and [Hugatry] have come up with a hack to manipulate a USB charger into becoming a variable voltage source ... in question through a small circuit consisting of a few resistors ...

Learn more at vidatronic.com. A linear voltage regulator is a circuit that takes in a variable input voltage and provides a continuously controlled, steady, low-noise DC output voltage. Generally, ...