The transistor is used to amplify the weak signal a CE amplifier connection is shown in below figure.
Zener diodes are used to maintain a fixed voltage.
In voltage multiplier circuit two or more peak rectifiers are cascaded to produce a d.c voltage equal to multiplier of the peak input voltages Vp i.e., 2Vp,
Triode is a vacuum tube with three electrodes which are cathode, Anode and a control grid.
A Vacuum tube diode is a two electrode vacuum tube as its name shows DI for two ODE for electrodes. The two electrodes are cathode and anode (plate).
A center-tapped rectifier is a type of full-wave rectifier that uses two diodes connected to the secondary of a center-tapped transformer, as shown in Figure (a).
Opto coupler are designed to provide complete electrical isolation between an input and output circuits.
The operational amplifier or OP-AMP is a direct coupled, high gain amplifier used to perform a wide variety of mathematical operation used to perform like summation, subtraction, multiplication, di
EFFECT OF BIAS CURRENT
Transistor’s within the OP-AMP must be biased so that have the current values of base and collector current and collector to emitter voltages.
The operational amplifier is direct-coupled high gain differential amplifier.
A inverting amplifier provides the same function as the common emitter and common-source amplifiers.