A small current entering the base region of the transistor causes a much larger current flow from the emitter to the collector region. Bipolar Junction transistors, different FET transistors, are current-controlled devices. Bipolar Junction Transistor (BJT)īipolar Junction Transistors are transistors that are built up of 3 regions, the base, the collector, and the emitter. Transistors are classified into two types like BJTs and FETs. Below is a list of the different types of transistors we will go over the characteristics that create them each up What are the Two Main Types of Transistors? Still, other transistors are in a specialty group all of their own, such as phototransistors, which react to the amount of light shining on it to produce current flow through it. Others can be used for both switching and amplification. Some types of transistors are used mostly for switching applications. There are so many types of transistors and they each vary in their characteristics and each has its possess advantages and disadvantages.
Equally, it can be seen that for the p-n-p connection, the conservative current flows into the emitter as exposed by the inward arrow in the figure.
This means that the conservative current flows out of the emitter as indicated by the outgoing arrow. In the n-p-n connection, we identify electrons flow into the emitter. The arrow symbol defined the emitter current. In-circuit is a connection drawn form is used. A diagrammatic form of n-p-n and p-n-p transistor is exposed.
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