Forward Bias & Reverse Bias of a Diode
July 6, 2016
A diode is made from a small piece of semiconductor material, usually silicon, in which half is doped as a p region...
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Energy Diagrams of PN Junction & Depletion Region
July 6, 2016
The valence and conduction bands in an n-type material are at slightly lower energy levels than the valence and conduction bands...
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How a PN Junction Formed in a Diode
July 6, 2016
When you take a block of silicon and dope part of it with a trivalent impurity and the other part with...
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N Type and P Type Semiconductors
July 6, 2016
Semiconductive materials do not conduct current well and are of limited value in their intrinsic state. This is because of the...
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Band Gap for Semiconductor Materials
July 6, 2016
The valence shell of an atom represents a band of energy levels and that the valence electrons are confined to...
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Insulators, Conductors and Semiconductors
July 6, 2016
All materials are made up of atoms. These atoms contribute to the electrical properties of a material, including its ability to...
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Dependent Current Source
July 5, 2016
A dependent current source establishes a current, which is independent of the voltage across it, that is determined by the...
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Current Divider Rule
July 5, 2016
It can be quite useful to determine how a current entering two parallel resistors “divides” between them. Consider the circuit shown...
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Voltage Divider Rule
July 5, 2016
It can be quite useful to determine how a voltage appearing across two series resistors “divides” between them. Consider the...
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Combining Independent Current Sources in Parallel
July 5, 2016
It is not possible to combine independent current sources in series, since this would violate KCL. However, consider the parallel...
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