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BJT – 2

  • Two main categories of transistors:
                          1.bipolar junction transistors (BJTs) and
                          2.field effect transistors (FETs).
  • Transistors have 3 terminals where the application of current (BJT) or voltage (FET) to the input terminal increases the amount of charge in the active region.
  • The physics of “transistor action” is quite different for the BJT and FET.
  • In analog circuits, transistors are used in amplifiers and linear regulated power supplies.
  • In digital circuits they function as electrical switches, including logic gates, random access memory (RAM), and microprocessors.

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Categories: 4.DEVICES, BJT
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