Whenever I use the 555 timer, it seems that the output polarity is invariably incorrect, and the way the 555 functions, it normally cannot generate a duty cycle of less than 50% — 90% yes, 10% NO!

This was shown in the “Inductor-based astable 555 timer circuit”. In Figure 1, we present another approach for an inductor-based astable 555 multivibrator. Figure 1 An astable 555 timer circuit based ...

[FightCube] wrote in recommending a very helpful piece of circuit simulation software for those of you still constructing entries for the 555 design contest. LTSpiceIV, available from Linear ...

Just about anything can be made with a 555 Timer, and every circuit is fun to build, which I show in my book “Essential 555 IC: Design, Configure, and Create Clever Circuits.” In the book ...

Take this Christmas tree for example, which uses a 555 timer and a CB4017 decade counter in order to drive some blinking LEDs. The ICs are through-hole, making the circuit fairly accessible to new ...

This file type includes high-resolution graphics and schematics when applicable. Paul Rako, Creative Director, Rako Studios Back in 2011, Jeff Hamilton contacted Bob Pease, asking for Bob’s ...