Astable Multivibrator

Multivibrators are non-sinusoidal oscillators which are usually two-stage amplifiers with positive feedback. These circuits are made up of both active and passive components. Active components include elements such as BJTs (Bipolar Junction Transistors), FETs (Field Effect Transistors), Vacuum Tubes, Op-Amps and 555 timer ICs. Passive components include elements like resistors and capacitors. However while designing them, care must … Read more

Monostable Multivibrator

Multivibrators are non-sinusoidal relaxation oscillators which can be of three types viz., astable multivibrators, monostable multivibrators and bistable multivibrators. It is a well-known fact that all the systems exhibit the natural tendency to be in their stable states. However one can even design the circuits which will switch-over into an unstable state when triggered externally. … Read more

Bistable Multivibrator

Bistable Multivibrators are the multivibrators which depend upon the external triggers so as to switch between their two permissible stable states. These circuits are also referred to as Trigger Circuits or Eccles Jordon Circuits or Scale-of-2 Toggle Circuits or Binary or more popularly as Flip-Flops, forming the basic building blocks of sequential digital systems. These … Read more