Bipolar Transistors: Symbol, Input, Output, Transfer Characteristic, Current Gain, Operation Regions
Channel: IFE - TU Graz
Date: 2021-11-26

Transistors are the backbone of electronics. They can be used as amplifiers or switches. In this video we will talk about the first-ever functional transistor, the bipolar junction transistor or BJT. We discuss the two different types npn, pnp, their symbol, terminals, input characteristic, output characteristic, transfer characteristic, current gain, regions of operation (forward-active, saturation, cut-off, reverse-active) and Early voltage.

By that we talk about how the different voltages (base emitter voltage VBE, collector emitter voltage VCE) and currents (base current IB, collector current IC, emitter current IE) depend on each other.  

Tutor: Patrick Schrey

Chapters:
0:00 Intro
0:11 Bipolar Transistors
0:29 Symbol
0:36 Terminals
0:49 Currents and Voltages
1:15 Characteristics
1:35 Input Characteristic
1:46 Output Characteristic
2:08 Transfer Characteristic
2:27 Current Gain Characteristic
2:47 Regions of Operation
3:26 Forward-Active Region (Formulas and Early Voltage)
3:57 Saturation and Cut-off (Switch)
4:32 Recap Questions

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#electronics #transistors #microelectronics #semiconductors