Monostable Multivibrator Using Ic 555 Theory. The unstable state is called quasi stable state. Since it is not used here it is grounded via a capacitor c 0 01µf to avoid high frequency noises.
For auto triggering of output from quasi stable state to stable state energy is stored by an externally connected capaci tor c to a reference level. The period of stable state is determined by the charging time constant of the c network. In monostable multivibrator using 555 timer circuit the term monostable indicates that it has only one stable state.
In monostable multivibrator using 555 timer circuit the term monostable indicates that it has only one stable state.
This is the circuit diagram of 555 timer wired in monostable mode. For auto triggering of output from quasi stable state to stable state energy is stored by an externally connected capaci tor c to a reference level. 8 th pin and 1 st pin of the 555 timer are used to given power vcc and ground respectively. In such a vibrator one state of output is stable while the other is quasi stable unstable.
