arcade works circuit | Next Electronics

This may be the simplest LED flasher circuit you can build, with the notable exclusion of LEDs with integrated flashing circuits. This might be a good replacement for the LM3909 in some applications. Take a close look. Only the emitter...

AC Powered 220V Led Circuit

This is a simplified version of a white LED lamp that can be powered directly from the mains. It provides sufficient illumination for reading purposes. Capacitor Cx along... The circuit for the white LED lamp consists of several key components designed...

temporary led lampilluminator circuit

Here is a design for a temporary lamp circuit that is very helpful in emergency situations or in any application where there is limited time to turn off the lamp. Simply press the push button to perform a quick task,...

LED Dimmer Lighting

A dimmer for individual LED bulbs. LEDs (light emitting diodes) are very sensitive components; exceeding their rated current or voltage can drastically reduce their lifespan from over 50,000 hours to mere microseconds. LEDs are current-driven, meaning that the intensity of...

Christmas Star with LEDs

Using a PC parallel port to control external devices is a popular approach these days but I certainly couldn’t afford to tie up a PC for the few weeks leading up to Christmas just to flash a few LEDs! Not...

Automatic LED Emergency Light Circuit

This is a cost-effective and straightforward emergency light circuit developed for CircuitsToday. It is an automatic emergency lamp with daylight sensing capabilities, meaning it detects darkness and turns on automatically, while also sensing daylight to turn off. The circuit does...

LED Power Failure Light

The power failure light that I eventually designed and built is housed in the plastic case from a wall-mounted power transformer. I had accidentally destroyed the transformer by shorting its output, and had kept the plastic case for years, just...

Flashing LED Circuit

This is a simple flashing LED circuit featuring two LEDs and two NPN transistors. It demonstrates the behavior of transistors and capacitors, and it can be used in an oscillating configuration. The circuit consists of two NPN transistors, which function as...

LED Lighting For Dual-Filament Lamps

Before proceeding with the implementation, it is important to ensure that the output brightness is adequate for a stop and tail-light application. The light output may vary based on the tail-light lens and reflector assembly, so caution should be exercised...