LED Circuit Diagram – LED strobe has independent delay and duration High-brightness LEDs, with independent delay and duration, find use in a visual-inspection application. This circuit is not complex, ...

Seen in the accompanying schematic, the 555 square wave generator drives an MPF102 FET, which in turn drives a D718 power transistor that provides a “pulsed” 12V variable duty cycle driving the LED ...

Schematic of the LED Flood Lights Circuit Capacitor C2 act as a ripple remover and buffer. Zener diode ZD regulates DC to 69 volts and prevents excess reverse voltage across the LEDs during the ...

Guest columnist Faraz Hasan, marketing and business development manager at Tyco Electronics Circuit Protection Products says that LEDs can require overcurrent protection despite built-in safety ...

Figure 1 Establishing galvanic isolation with the help of optocouplers between circuits that operate at different ground potentials looks deceptively simple. Optocouplers draw power from the isolated ...

It's a simple string of miniature light bulbs, with some wiring inside that connects everything together. But how does it all come together?

LED replacement of incandescent lighting for residential use involves IC design that requires “penny pinching” to a degree not found in many other areas.

LED bulbs are more efficient than older incandescent or fluorescent bulbs, and can save you significant money. But why do they sometimes glow when turned off?

DPW is upgrading some of its circuits to be LED-compatible. Many of the city's 77,000 street lights and 10,000 alley lights are on series circuits that date back to the early 1900s.