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Difference between astable monostable and bistable multivibrator

what is multivibrator?

The name mutivibrator designates a group of the circuits widely applied for switching as shift registers or temporary memories and as square were timing oscillator or clocks. These circuits are basically closed loop feedback circuits operating with the feedback.

Types of multivibrator

There are three general types of multivibrators, which are:

  • The astable or free running mutivibrator which has no stable states. It continuously switched between two limits without application of an external signal it is a square wave oscillator.
  • The monostable or one shot multivibrator: it has one only stable state. It can be switched from stable state to the other, it then returns to the first stable state after a time delay.
  • The bistable or flip flop. It has two stable states and can be triggered from one stable state to the other by external signal.

 What is meant by astable multivibrator ?

astable multivibrator

Astable multivibrator

The astable or free running multivibrator continuosly switching from one state to the other and back to the first state. In other words it switches between two limits without application of an external signal. It is a square of rectangular wave oscillator.

Applications astable multivibrator

The astable or free running multivibrator is used as a square wave frequency generator, timing oscillator ,or clock of a computer system. It is also used for a flashing lights, switching and power supply circuits.

What is meant by  One shot Or Mono State Multivibrator?

monostable multivibrator

monostable
multivibrator

It has only one stable state. It can be switched from stable state to a quasi stable state by an external signal, it then returns to the stable state after a time delay.

Applications of astable multivibrator

The monostable multivibrator is used as delay and timing circuits. It is also used for temporary memories.

What is meant by bistable (flip flop) multivibrator?

bistable multivibrator

It has two stable states and can be triggered from one stable state to the other by an external signal.

Applications of bistable multivibrator

The bistable multivibrator or Fip Flop is of great importance in digital operation in computers, digital communications. It is also used for reversing to the supply to a given circuit or change supply to two circuit at regular intervals.

Multivibrators:astable,monostable and bistable (video)

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