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 ...

Paul Rako, Creative Director, Rako Studios. Back in 2011, Jeff Hamilton contacted Bob Pease, asking for Bob’s experience with the classic 555 timer IC.Jeff wrote Pease, “As part of celebrating ...

A 555-timer IC can inexpensively perform PWM. The circuit in Figure 1 shows how to turn a 555 PWM circuit into an switch-mode power supply with only one simple equation. The design uses two 555s. IC 1 ...

Back in 2011, Jeff Hamilton contacted Bob Pease, asking for Bob’s experience with the classic 555 timer IC.Jeff wrote Pease, “As part of celebrating a part with 40 years in the market, I ...