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555 Timer as Astable Multivibrator (Working, Design and Derivations)

In this video, the Astable Multivibrator is designed using 555 Timer. After watching this video, you will learn the following topics. 0:23 What is Astable Multivibrator 0:50 Astable Multivibrator using 555 timer 1:18 Working of the circuit 9:08 Duty Cycle of Astable Multivibrator 13:25 Design of Astable Multivibrator with 50 % Duty Cycle 15:02 Derivation of the Timing Equations What is Astable Multivibrator: In Astable Multivibrator, both output states are unstable state and output continuously changes between the two states. The main application of this astable multivibrator is in the design of relaxation oscillator. In this video, the astable multivibrator is designed using 555 timers and the working of the circuit is also explained. In the designed astable multivibrator circuit, the duty cycle of the output signal will be always more than 50 %. To achieve a 50 percent of a duty cycle, the modification in the circuit, as well as another alternative circuit, is also suggested. And at the end part of the video, the equations used in the design of this astable multivibrator circuit has been derived. This video will be helpful to all the students of science and engineering in understanding the design and working of astable multivibrator using 555 timer ic. The more videos on 555 timer ic: Introduction to 555 Timer :    • Introduction to 555 Timer: The Intern...   555 Timer as Monostable Multivibrator:    • Monostable Multivibrator using 555 Ti...   #555Timer #AstableMultivibrator Follow me on YouTube:    / allaboutelectronics   Follow me on Facebook:   / allaboutelecronics   Follow me on Instagram:   / all_about.electronics   Music Credit: http://www.bensound.com/