Due to the advantages like low voltages, long life, cheap, reliable, fast on-off switching etc, the LED's are used in many applications.

I needed a simple LED indicator showing that a particular voltage level had been reached—specifically, that a capacitor had charged to a particular potential. I was convinced that there must be ...

I know very little about electronics, but if you give me a schematic and a pile of parts, I can more-or-less assemble them correctly.I am trying to build a simple circuit to simulate the behavior ...

3V is sufficient to turn on any LED, but is within its reverse break down voltage rating (that is why I did not use the common 9V battery). Short circuit current is approx. 30mA. I used a 3V lithium ...

[Peter] needed to drive a high power LED for his microscope. Rather than pick up a commercial LED driver, he built a simple constant current LED driver and fan control. We’ve featured [Peter&… ...

Learn how to easily fix LED lamps with nothing but a 1.5V battery! This simple DIY trick is a game-changer for anyone struggling with LED bulbs that aren’t working properly. Whether your bulbs ...