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Chapter 12

Transistors

Bipolarer Sperrschichttransistor
Bipolarer Sperrschichttransistor
Transistors play a vital role in electronic circuits, enabling the functionality of amplifiers, memories, and microprocessors. Transistors can be designed ...
Konfigurationen von BJT
Konfigurationen von BJT
Bipolar Junction Transistors (BJTs) are categorized into various types based on their configurations, each with distinct characteristics and applications. ...
Funktionsprinzip eines Bipolartransistors (BJT)
Funktionsprinzip eines Bipolartransistors (BJT)
Consider a PNP transistor in a common-base configuration, operating in active mode. Forward biasing reduces the emitter-base potential, enabling the ...
Eigenschaften von BJT
Eigenschaften von BJT
Consider the common-emitter configuration of the BJT. The voltage and current dependencies are measured experimentally to understand the current-voltage ...
MOSFET: Anreicherungsmodus
MOSFET: Anreicherungsmodus
A bipolar junction transistor has four modes of operation, depending upon the voltage polarities at the emitter-base junction and the collector-base ...
Frequenzgang des BJT
Frequenzgang des BJT
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 ...
Grenzfrequenz von BJT
Grenzfrequenz von BJT
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 ...
Schalten von BJTs
Schalten von BJTs
Consider a switching circuit that involves a sudden change in the emitter-base voltage. Initially, both the base-emitter junction and the ...
BJT-Verstärker
BJT-Verstärker
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 ...
Kleinsignalanalyse von BJT-Verstärkern
Kleinsignalanalyse von BJT-Verstärkern
Small signal analysis is a fundamental approach used in electronics to understand how a Bipolar Junction Transistor (BJT) amplifier processes signals. In ...
Feldeffekttransistor
Feldeffekttransistor
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 ...
Eigenschaften von JFET
Eigenschaften von JFET
The output characteristics of a JFET describe the relationship between the drain current and the drain-source voltage at various levels of gate-source ...
Vorspannung von FETs
Vorspannung von FETs
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-Kondensator
MOS-Kondensator
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 ...
MOSFET
MOSFET
The Metal-Oxide-Semiconductor Field-Effect Transistor, or MOSFET is a semiconductor device with three terminals: the Source, the Drain, and the Gate and ...
Eigenschaften von MOSFETs
Eigenschaften von MOSFETs
The essential parameters of MOSFETs include the channel length, the channel width, the oxide thickness, the junction depth, and the substrate doping. With ...
MOSFET: Anreicherungsmodus
MOSFET: Anreicherungsmodus
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the ...
MOSFET: Verarmungsmodus
MOSFET: Verarmungsmodus
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 ...
Transistoren
Transistoren
The MOSFET operates as a voltage-controlled current source in its active region, where the gate-to-source voltage regulates the drain current. This ...
Transistoren
Transistoren
In small-signal analysis, a MOSFET transistor amplifier acts as a linear amplifier when operating in its saturation region. The gate-to-source voltage ...
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