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Power Supply Devices and Systems of Relay Protection
book

Power Supply Devices and Systems of Relay Protection

by Vladimir Gurevich
December 2017
Intermediate to advanced content levelIntermediate to advanced
260 pages
7h 13m
English
CRC Press
Content preview from Power Supply Devices and Systems of Relay Protection

1

Basic Components

1.1 Semiconducting Materials and p–n Junctions

As is known, all substances, depending on their electroconductivity, are divided into three groups: conductors (usually metals) with a resistance of 10–6–10–3 Ωcm, dielectrics with a resistance of 109–1020 Ωcm, and semiconductors (many native-grown and artificial crystals) covering an enormous intermediate range of values of specific electrical resistance.

The main peculiarity of crystal substances is typical, well-ordered atomic packing into peculiar blocks—crystals. Each crystal has several flat symmetric surfaces and its internal structure is determined by the regular positional relationship of its atoms, which is called the lattice. Both in appearance and in structure, ...

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Publisher Resources

ISBN: 9781466583801