Reliable 555 timer doesn’t falsely trigger Powering the timer from a NOR gate keeps it unpowered until needed. Power an LED driver using off-the-shelf components Drive LEDs with a 555 timer and two ...

Next, they showed me a dog-eared 555 spec sheet and recommended that I use it. My mind wandered to something I heard that the late Bob Pease, analog design guru, said: his favorite circuit to use a ...