Transistor Construction Techniques and Performance: The following are Transistor Construction Techniques and Performance are as follows, Current Gain: Good current gain requires that most charge carriers from the emitter pass rapidly to the collector. So,…
Diode Fabrication Process and Packaging: Alloy and Diffused Diodes - Two commonly used techniques for Diode Fabrication Process and Packaging are the alloy method and the diffusion method. To construct an alloy diode, a pn-junction…
Processing of Semiconductor Materials: Preparation of Silicon and Germanium - Silicon is one of the commonest elements on earth. It occurs as silicon dioxide (SiO2) and as silicates; mixtures of silicon and other materials. Germanium…
Difference Between Common Base Common Emitter and Common Collector: Table 6-2 compares Zi, Zo, and Av, for difference Between Common Base Common Emitter and Common Collector circuits. As already discussed, the CE circuit has high voltage…
Common Base Circuit Diagram: The Common Base Circuit Diagram (CB) shown in Fig. 6-34 is very similar to a CE circuit, except that the input signal is applied to the transistor emitter terminal (via C2),…
Common Collector Circuit Analysis: In the Common Collector Circuit Analysis (CC) shown in Fig. 6-28 the external load (RL) is capacitor-coupled to the transistor emitter terminal. The circuit uses voltage divider bias to derive the transistor…
CE Circuit with Unbypassed Emitter Resistor: h-parameter Equivalent Circuit - When an CE Circuit with Unbypassed Emitter Resistor (RE) as shown in Fig. 6-25(a), it is also present in the ac equivalent circuit, [Fig. 6-25(b)].…
Common Emitter Amplifier Circuit: Consider the Common Emitter Amplifier Circuit circuit shown in Fig. 6-17. When the capacitors are regarded as ac short-circuits, it is seen that the circuit input terminals are the transistor base…
Transistor Models and Parameters: T-Equivalent Circuit - Because a transistor consists of two pn-junctions with a common centre block, it should be possible to use two pn-junction ac equivalent circuits as the Transistor Models and…
AC Load Line of BJT: AC Equivalent Circuits - Capacitors behave as short-circuits to ac signals, so in the ac equivalent circuit for a transistor circuit all capacitors must be replaced with short-circuits. Power supplies…
