In the optical devices such as optocouplers. As on-off indicator in various types of electronic circuits. Some LED’s radiate infrared light which is invisible. But such LED’s are useful in remote ...

LEDs, like batteries, have polarity, which means that there is a specific direction that current must flow through them: it must enter through the positive lead and exit through the negative lead in ...

This circuit is not complex, but it saved the day in an application ... It shows the main-clock input; the delay and duration potentiometers, P 1 and P 2; and the HB-LED output.

"For LED circuits, you can simply tape the LEDs on to the copper traces to make the connection," explains Qi. "For more complex circuits with many connections, solder your components to the copper ...

Figure 1 Establishing galvanic isolation with the help of optocouplers between circuits that operate at different ground ... and switching can be relatively slow and uncertain because of LED aging. An ...

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 ...

Evil Mad Scientist Labs brings us this easy to make LED blinking circuit. The idea is to put a LED in series with a small blinking incandescent bulb from a string of Christmas lights. The bulb has ...

In recent years, transparent LED screens have become a focus of efforts to make flexible video displays using substrates like glass and clear plastic. Such screens are made from networks of highly ...

First, let’s make the distinction between Articles 410 and 411 of the 2011 NEC. Article 410 provides the requirements for installing luminaires, lampholders, lamps ...