This project involves developing a PCB for a simple electronic circuit using a 555 Timer IC to create a transistor tester. The tester uses LEDs to indicate the functionality of NPN and PNP transistors ...

The monostable multivibrator circuit using the 555 Timer IC was successfully designed, simulated, and analyzed. The circuit generated a single output pulse of 0.5 microseconds in response to an ...

LEDs are commonly used in electronic circuits as they consume less power, are easy to use, and have a long lifespan. In this tutorial, we will learn how to build an LED ON and OFF circuit using 555 ...

An astable 555 multivibrator circuit, where the timing characteristics are determined by the interplay of an inductor, resistor, and diode.

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!

Over at Tiny Transistor labs, [Robo] took it upon himself to reproduce the classic 555 timer in discrete transistor form. For bonus points, he also managed to put it in a package that’s the s… ...

The 555 timer can’t handle that type of load, and it is not protected against the flyback current from the motor. Adding a resistor, a transistor, and a diode will make this circuit work for small ...

This paper proposed a modified 555 timer IC with only two comparators by eliminating the discharge transistor and SR flip-flop. A periodic square waveform can be generated by utilizing the ...