This is the first basic LED circuit I built many years ago in my school days and had given me immense pleasure to see glowing LED. For building this circuit you only need four things: LED- 1 Resistor- ...

I = 1.25/5.5 I = 0.227 Amps As you can see in the LED driver circuit diagram, for a resistor value of 5.5 ohms the current drawn by the LED is limited to 0.23A. You can use the same formulae and ...

An LED in the on-state drops approximately 0.7V, which is not sufficient to turn on the protector device. Once an LED fails open, there is sufficient circuit voltage to trigger the protector to the on ...

This boost circuit implements current mode control and senses the LED current via resistor R14. The output voltage is boosted to just over 30V to drive 10 LEDs at a regulated current of 0.35A. Often, ...

LED driver outputs may also be damaged or destroyed by short circuits. Most LED drivers include built-in safety features, including thermal shutdown, as well as open and short LED detection. However, ...

This simple Mock Flasher LED simulates the indicator of a sophisticated Alarm system. It can be placed in doors, gates and vehicles to confuse intruders. The circuit is too simple using a Unijunction ...

The PCB was developed to control any addressable RGB LED strip that uses WS2812B or similar LEDs that take 3 inputs (VCC, GND and Data/DIN) using any DIP8 packaged microcontroller. All board traces ...

Finally, they showed that when the circuit was deposited onto a polymer substrate, its performance remained stable even when bent to a radius of 15mm – confirming its flexibility. Thanks to these ...

Take the humble LED filament light bulb, for example — I’ve never paused to think how they are made or why they look the way they look. Now, I’ll never be able to see them the same way again.

For a 45-meter RG-58/U cable, the LED will flash at f1 = 1.67 Hz. When an open circuit is introduced at L2 = 25 meters from the IC, the LED will blink at about f2 = 3 Hz.