Скачать или смотреть Bipolar Junction Transistor, How does it work?

Basic principle how BJT or Bipolar Junction Transistor, How does it work. It covers explanation what is role of base emitter and collector. Also in video will be seen what is NPN type of transistor or PNP type of transistor.
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A bipolar junction transistor (bipolar transistor or BJT) is a type of transistor that uses both electron and hole charge carriers. In contrast, unipolar transistors, such as field-effect transistors, only use one kind of charge carrier. For their operation, BJTs use two junctions between two semiconductor types, n-type and p-type.

Bipolar transistors work as current-controlled current regulators. In other words, transistors restrict the amount of current passed according to a smaller, controlling current. The main current that is controlled goes from collector to emitter, or from emitter to collector, depending on the type of transistor it is (PNP or NPN, respectively). The small current that controls the main current goes from base to emitter, or from emitter to base, once again depending on the kind of transistor it is (PNP or NPN, respectively).

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Create: Hrvoje Čočić
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