“We need a circuit that generates a UV LED light pulse for a couple of seconds over about a 30-second period,” said the manufacturer of a portable aftermarket product with a florescence element. The ...

The function of the 555 timer is mainly determined by two comparators. The output voltage of the them controls the state of the RS flip-flop and the discharge tube. It also contains 3 working states.

This article is part of the 2022 April 1st series in the Humor topic within our Series Library. The ubiquitous 1971 digital miracle—the 555 Timer—is important, replete with 25 transistors, 15 ...