Power BJT - Construction, Operation and its Characteristics: Power transistors are large-area devices. Because of differences in geometry and doping concentrations, their properties tend to vary from those of the…
Satellite Communication System - Definition, Block Diagram, Advantages and Disadvantages: A satellite communication channel provides broad-area coverage in a continental as well as intercontinental sense. Moreover, access to remote areas…
Radio Communication System - Block Diagram and types: Radio communication is very popular technique of communicating a message. The radio waves are electromagnetic waves produced due to escape of electrical…
Difference Between Frequency Modulation and Amplitude Modulation: The Difference Between Frequency Modulation and Amplitude Modulation are discussed below The frequency modulation (FM) has the following advantages over the amplitude modulation…
Base Modulation Circuit Working Principle: The circuit for base modulation is shown in Fig. 22.28. The carrier signal from a crystal oscillator is coupled to the base terminal of the…
Output Stage of an Op Amp and its Voltage Transfer Characteristics: The output stage of an op amp is another requirement which should have very small output impedance and provide…
Voltage Level Translator (Level Shifter): Voltage Level Translator (Level Shifter) is usually an emitter follower circuit which is used to shift the dc level at the output of the intermediate…
Feedback Pair Connection - Operation and its Equivalent Circuit: The feedback pair connection (Fig. 19.58) is a two-transistor circuit that operates like the Darlington amplifier. It makes use of a…