Astable Multivibrator Circuit. The three types of multivibrator ci. Astable multivibrators are the most commonly used type of multivibrator circuits.
A multivibrator circuit oscillates between a high state and a low state producing a continuous output. The on time of a cycle is equal to the charging time of the capacitor from 1 3vcc to 2 3vcc and the off is equal to the discharge time from 2 3vcc to 1 3vcc. Clock pulses are generally continuous square or rectangular shaped waveform which are produced by a single pulse generator circuit such as a multivibrator.
The on time and off time of the astable multivibrator circuit can be calculated by taking the charging and discharging time of the capacitor c.
They called their circuit a multivibrator because its output waveform was rich in harmonics. Astable multivibrators are the most commonly used type of multivibrator circuits. Construction of astable multivibrator. Once the multivibrator is on it just changes its states on its own after a certain time period which is determined by the r c time constants.
