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Chapter 12

Chapter 12

Transistors

Transistors play a vital role in electronic circuits, enabling the functionality of amplifiers, memories, and microprocessors. Transistors can be designed …
Bipolar junction transistors have different configurations based on the common contact. The common base configuration features a shared base terminal for …
Consider a PNP transistor in a common-base configuration, operating in active mode. Forward biasing reduces the emitter-base potential, enabling the …
Consider the common-emitter configuration of the BJT. The voltage and current dependencies are measured experimentally to understand the current-voltage …
A field effect transistor is a three-terminal unipolar device comprising a gate, drain, and source terminal. Charge carriers flow from the source to the …
The output characteristics of a JFET describe the relationship between the drain current and the drain-source voltage at various levels of gate-source …
The Metal-Oxide-Semiconductor Field-Effect Transistor, or MOSFET is a semiconductor device with three terminals: the Source, the Drain, and the Gate and …
The essential parameters of MOSFETs include the channel length, the channel width, the oxide thickness, the junction depth, and the substrate doping. With …
The MOSFET operates as a voltage-controlled current source in its active region, where the gate-to-source voltage regulates the drain current. This …
Consider a MOSFET transistor amplifier circuit operating in its active region to provide linear amplification. The total instantaneous gate-to-source …
A bipolar junction transistor has four modes of operation, depending upon the voltage polarities at the emitter-base junction and the collector-base …
A common-emitter amplifier's DC bias point is determined by the base-emitter voltage, base current, and collector current. The load line is determined …
The common base configuration's current gain is constant at low frequencies of the input signal but attenuates after a specific frequency known as the …
Consider a switching circuit that involves a sudden change in the emitter-base voltage. Initially, both the base-emitter junction and the …
In the active region of a common emitter NPN BJT, the emitter current is the sum of the base current and the collector current. Here, the base voltage …
Consider a BJT  transistor amplifier circuit operating in its active region to provide linear amplification. The total instantaneous base-emitter …
A junction field effect transistor is used in electronic circuits to control electrical currents. JFETs consist of an N-type or P-type silicon bar …
MOS capacitors have three layers: the bottom layer is a semiconductor substrate, the middle is an insulating layer, and the top metal layer is the gate …
The two modes of p- and n-channel MOSFETs are enhancement and depletion. Enhancement mode MOSFETs are typically off at zero gate-source voltage, meaning …
Depletion-mode MOSFETs are already ON without a gate bias but need a gate-source voltage to switch OFF. They function like JFETs, where the drain-source …
Surveillance using biomarkers is critical for the early detection, rapid intervention, and reduction in the incidence of diseases. In this study, we …
Aluminum-oxide (Al2O3) is a low cost, easily processable and high dielectric constant insulating material that is particularly appropriate for use as the …
In the current study, graphene and its derivatives have been investigated and used for many applications, including electronics, sensing, energy storage, …