Astable Multivibrator using IC 555 | Circuit diagram | Experiment | Breadboard Diploma | Btech

Email: [email protected] Astable Multi vibrator using IC 555 | free running oscillator Astablemultivibrator is also called free running multivibrator and is used as a square wave oscillator. The transistors in the circuit do not have stable state. i.e. when Vcc is given, one transistor turns ON (goes to saturation region) and the other turns OFF (goes to cut off region). After sometime (determined by charging and discharging of the two capacitors in the circuit), the ON transistor is turns OFF and the OFF transistor turns ON. This cycle repeats as long as the supply is given.