Fixed Bias Circuit Diagram - Advantages and Disadvantages: Fixed Bias Circuit Diagram shown in Fig. 12.5 uses two batteries VBB and VCC. The battery VBB gives potential to the base terminal through resistance RB (of…
Bias Stability Factor of Transistor: Bias Stability Factor of Transistor - Only the fixing of a suitable operating point is not sufficient but it is also to be ensured that the operating point remains stable…
Selection of Operating Point in Transistor Biasing: To study the selection of operating point in Transistor biasing conditions on the performance of a transistor, it is necessary to draw a dc load line on the…
Selection of Oscillator: While in the Selection of Oscillator for a particular application, the following particulars are to be considered. Frequency Range: The oscillator selected for a particular application should be capable of supplying an…
Negative Resistance Oscillators - Working and Types: Negative resistance oscillators make use of negative resistance elements such as tetrodes, tunnel diodes, unijunction transistors etc. There are two types of negative resistance oscillators, which are commonly…
Crystal Oscillators - Circuit, Working, Advantages and Disadvantages: In crystal oscillators, the usual electrical resonant circuit is replaced by a mechanically vibrating crystal. The crystal (usually quartz) has a high degree of stability in holding…
Hartley Oscillator using Transistor Analysis: The transistor Hartley oscillator is as popular as Colpitt's oscillator and is widely used as a local oscillator in radio receivers. The circuit arrangement is shown in Fig. 21.16. Hartley…
Clapp Oscillator - Circuit Diagram and Operation: The Clapp oscillator shown in Fig. 21.15 is a refinement of the Colpitt's oscillator. The single inductor found in the Colpitt's oscillator is replaced by a series L-C…
Colpitts Oscillator using Transistor Circuit: The Colpitts oscillator circuit is a superb circuit and is widely used in commercial signal generators up to 100 MHz. The basic Colpitts Oscillator using Transistor circuit is shown in Fie.…
Franklin Oscillator Circuit Diagram: A simple L-C oscillator, called the Franklin oscillator and its circuit diagram is shown in Fig. 21.12. Here two CE amplifier stages are employed to provide 360° phase shift from input to…
