Investigating potential power current sources capable of handling both AC and DC currents using the LM317 current source.

[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 ...

The humble LM317 adjustable voltage ... current source under varying load. This can useful for a number of applications including driving LEDs and laser diodes. While this circuit may not be ...

The circuit of a voltage divider may be drawn with the two resistors vertical, not horizontal. If there are two resistors in series across a voltage source, then the circuit is a voltage divider.

An ultra-low power sensor operates using energy harvesting from various sources for efficient monitoring. The oscillator ...