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

It may also be used to check a string of LEDs (one at a time) to make sure that all are installed correctly. LED Tester Circuit Schematic simple led tester schematic Why 3V? 3V is sufficient to turn ...

Building simple circuits with copper tape, LED bulbs, resistors, and watch batteries is not as simple as you might think. Notre Dame Elementary School STEM students are putting the engineering ...

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 ...

With the circuit values shown, R2 will drop a bit less than 5 V before D3 turns on. Prior to turn on, D2 remains back-biased and no current flows through the LED (D1).

A Simple Over-Voltage Protection Circuit for LED Drivers This boost circuit implements current mode control and senses the LED current via resistor R14. The output voltage is boosted to just over 30V ...