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, ...

The flasher circuits below operate on a single 1.5 volt battery. LED flasher circuit diagrams The circuit on the upper uses the popular LM3909 LED flasher IC and requires only a timing capacitor and ...

Sometimes you need to know which wire/node is positive polarity and which wire/node is negative polarity.The LED as a polarity indicator circuit is show in above diagram.

Patel founded Ferndale-based Midwest Circuits, now a municipal LED street-lighting manufacturer, in 1995 with another sector in mind: automobiles.

There is also protection against LED open-circuit, LED short-circuit, over-current, current sense resistor short-circuit, and input over-voltage. The power converter is two-stage (see right) to ...