Odyssey
发表于 2025-3-30 11:01:24
Silicon controlled rectifiers or thyristors, current. Among these are motor speed control, electrical welding, and lighting control. The use of silicon controlled rectifiers has made electrical power control an efficient and inexpensive process.
点燃
发表于 2025-3-30 12:52:27
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Regurgitation
发表于 2025-3-30 17:31:13
Conductors, insulators and semiconductors,ity are termed good conductors and are usually metals. Materials which are poor conductors of electricity are called insulators. The third group consists of materials whose conductivities lie between those of metals and insulators. These materials which are called semiconductors play an important ro
Anticlimax
发表于 2025-3-30 21:58:06
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Agnosia
发表于 2025-3-31 04:15:51
Other types of semiconductor diodes,semiconductor device must under normal conditions form ohmic or nonrectifying junctions with the semiconductor. The junction between a metal and a semiconductor inside a metal-semiconductor diode must however, be a rectifying one. Such a diode is often called a Schottky diode. The external voltage-c
RUPT
发表于 2025-3-31 07:35:55
The junction transistor,p, and are called emitter, base, and collector. The two possible types of transistor are shown in Fig 5.1 with their circuit symbols. The central region is very narrow in width, and has a much lower impurity concentration than the two outer regions.
epicardium
发表于 2025-3-31 10:31:19
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mortgage
发表于 2025-3-31 14:19:41
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壮观的游行
发表于 2025-3-31 18:35:58
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爆炸
发表于 2025-4-1 01:36:08
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