While LEDs are common in voltage detection applications, I have never seen an LED circuit that is dedicated to indicating the presence of low values of current flow. This simple LED current sensor ...

There are many applications where the accuracy of a digital or analogue (bar graph) is not required but something better than a simple low/high indicator is desirable. A battery charge level indicator ...

A new LED works directly from 120 Vac and is designed to replace ordinary 120MB-style incandescent indicator bulbs. Designated the 120MBLS-X-CX, the wide-angle LED draws less than 8 mA. Additionally, ...

Infrastructure projects like the Tokyo Gate Bridge are now turning to LED lighting because of its economical and environmental advantages. But these devices still need the right current-limiting ...