Distribution of currents in NPN transistor Bipolar Transistor – Principle of o peration Diode replacement model of PNP transistor Fig. Diode replacement model of NPN transistor Fig. PNP bipolar transistor symbol and the construction of its junctions Fig. NPN bipolar transistor symbol and the construction of its junctions Fig. In this example, two p-n junction forms ( diodes): Base-Emitter (BE) and Base-Collector (BC).
Npn transistor base emitter collector how to#
If you are a student or simply want to learn how to solve bipolar transistor tasks, please visit this section of our website where you can find a wide variety of electronic tasks.īipolar transistor consists of three semiconductor regions with different types of conductivity: N-P-N or P-N-P. Transistors are used almost everywhere: from amplifiers, generators, power switching systems to computers and more advanced systems. Silicon Si transistors are most often used (Threshold Voltage V T = 0.6 – 0.7V), less common are germanium Ge (V T = 0.2 – 0.3V).
Electrodes of the bipolar transistor have the following names: – C – collector, B – base, E – emitter. There are two types of bipolar transistors: N-P-N transistors and P-N-P transistors. The amplifier is a device, which can control more power with usage of less power.
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