go to jove.com

HIGH SCHOOL

Engineering

Concept Videos

Electrical Engineering

Transistors

Bipolar Junction Transistor
01:22
Bipolar Junction Transistor

Transistors play a vital role in electronic circuits, enabling the functionality of amplifiers, memories, and microprocessors. Transistors can be designed ...

Video Duration: 1 minute and 22 seconds
Configurations of BJT
01:16
Configurations of BJT

Bipolar Junction Transistors (BJTs) are categorized into various types based on their configurations, each with distinct characteristics and applications. ...

Video Duration: 1 minute and 16 seconds
Working Principle of BJT
01:15
Working Principle of BJT

Consider a PNP transistor in a common-base configuration, operating in active mode. Forward biasing reduces the emitter-base potential, enabling the ...

Video Duration: 1 minute and 15 seconds
Characteristics of BJT
01:17
Characteristics of BJT

Consider the common-emitter configuration of the BJT. The voltage and current dependencies are measured experimentally to understand the current-voltage ...

Video Duration: 1 minute and 17 seconds
Modes of Operations of BJT
01:21
Modes of Operations of BJT

A bipolar junction transistor has four modes of operation, depending upon the voltage polarities at the emitter-base junction and the collector-base ...

Video Duration: 1 minute and 21 seconds
Frequency Response of BJT
01:24
Frequency Response of 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 ...

Video Duration: 1 minute and 24 seconds
Cut-off Frequency of BJT
01:17
Cut-off Frequency of 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 ...

Video Duration: 1 minute and 17 seconds
Switching of BJT
01:22
Switching of BJT

Consider a switching circuit that involves a sudden change in the emitter-base voltage. Initially, both the base-emitter junction and the ...

Video Duration: 1 minute and 22 seconds
BJT Amplifiers
01:14
BJT Amplifiers

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 ...

Video Duration: 1 minute and 14 seconds
Small-Signal Analysis of BJT Amplifiers
01:21
Small-Signal Analysis of BJT Amplifiers

Small signal analysis is a fundamental approach used in electronics to understand how a Bipolar Junction Transistor (BJT) amplifier processes signals. In ...

Video Duration: 1 minute and 21 seconds
Field Effect Transistor
01:29
Field Effect Transistor

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 ...

Video Duration: 1 minute and 29 seconds
Characteristics of JFET
01:21
Characteristics of 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 ...

Video Duration: 1 minute and 21 seconds
Biasing of FET
01:22
Biasing of FET

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 ...

Video Duration: 1 minute and 22 seconds
MOS Capacitor
01:25
MOS Capacitor

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 ...

Video Duration: 1 minute and 25 seconds
MOSFET
01:16
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 ...

Video Duration: 1 minute and 16 seconds
Characteristics of MOSFET
01:17
Characteristics of MOSFET

The essential parameters of MOSFETs include the channel length, the channel width, the oxide thickness, the junction depth, and the substrate doping. With ...

Video Duration: 1 minute and 17 seconds
MOSFET: Enhancement Mode
01:22
MOSFET: Enhancement Mode

Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the ...

Video Duration: 1 minute and 22 seconds
MOSFET: Depletion Mode
01:20
MOSFET: Depletion Mode

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 ...

Video Duration: 1 minute and 20 seconds
MOSFET Amplifiers
01:17
MOSFET Amplifiers

The MOSFET operates as a voltage-controlled current source in its active region, where the gate-to-source voltage regulates the drain current. This ...

Video Duration: 1 minute and 17 seconds
Small-Signal Analysis of MOSFET Amplifiers
01:23
Small-Signal Analysis of MOSFET Amplifiers

In small-signal analysis, a MOSFET transistor amplifier acts as a linear amplifier when operating in its saturation region. The gate-to-source voltage ...

Video Duration: 1 minute and 23 seconds