Switching Circuits

Blocking Oscillator – Definition, Operation and Types

Blocking Oscillator – Definition, Operation and Types: The output of an active device may be coupled back to the input through a pulse transformer. If the relative windings polarities are properly chosen, the feedback will be regenerative and the circuit can be made to generate a single pulse (monostable operation) or a pulse train (astable …

Blocking Oscillator – Definition, Operation and Types Read More »

Commutating Capacitor in Bistable Multivibrator or Speed up Capacitor

Commutating Capacitor in Bistable Multivibrator or Speed up Capacitor: Commutating Capacitor in Bistable Multivibrator is also called as Speed up Capacitor. Whenever a triggering pulse is applied to change the bistable state from one bistable state to another, it is necessary that the transition period should be minimum and it should require minimum but finite …

Commutating Capacitor in Bistable Multivibrator or Speed up Capacitor Read More »

Monostable Multivibrator – Operation, Types and Application

Monostable Multivibrator – Operation, Types and Application: Monostable multivibrator is a two-stage amplifier with two states—one stable state and another quasi-stable state. The circuit has two transistors Q1 and Q2, one being in the offstate, say Q1, and the other, Q2, in the on state preferably in saturation. These transistors remain in this state for …

Monostable Multivibrator – Operation, Types and Application Read More »

Astable Multivibrator Definition and its Working

Astable Multivibrator Definition and its Working: The multivibrator circuit which has no stable state is called the astable multivibrator. The two states of operation of astable multivibrators are quasi-stable (temporary) states. The astable multivibrator, therefore, makes successive transitions from one quasi-stable state to the other one after a predetermined time interval, without the help of …

Astable Multivibrator Definition and its Working Read More »

Multivibrator definition and Types (Astable, Monostable and Bistable)

Multivibrator definition and Types (Astable, Monostable and Bistable): A multivibrator is basically a two stage R-C coupled amplifier with positive feedback from the output of one amplifier to the input of the other, as illustrated in Fig. 31.16. Multivibrator is a switching circuit and may be defined as an electronic circuit that generates nonsinusoidal waves …

Multivibrator definition and Types (Astable, Monostable and Bistable) Read More »

Transistor as a Switch Circuit Diagram and Working

Transistor as a Switch Circuit Diagram and Working: The Transistor as a Switch Circuit Diagram and Working can be explained with the help of its output characteristics. Figure 31.2 shows the output characteristics of a typical transistor for a CE configuration. The dc load line for a given collector supply voltage VCC and collector resistance …

Transistor as a Switch Circuit Diagram and Working Read More »

Scroll to Top