Basics of Bipolar Junction Transistors in Electronic Circuits

Transistors are super important in electronic circuits, from basic ones to more complex ones. Bipolar Junction Transistors (BJTs) are a big part of this. They're like switches controlled by electricity. They have three parts: emitter, collector, and base. BJTs control how electricity flows between the emitter and collector based on the electricity sent to the base. They're shown as NPN or PNP symbols, depending on how they're set up inside.

BJTs work like switches or boosters. When you give a little electricity to the base, it lets a bigger flow of electricity from the collector to the emitter, turning the transistor on. They can be set up in different ways—Common Base (CB), Common Emitter (CE), and Common Collector (CC)—and each way affects how they handle electricity. BJTs are good for boosting electricity and turning things on and off quickly, but they use more power and can get hot.

Field Effect Transistors (FETs) are another type, and they work a bit differently. They're good for some things BJTs aren't, like using less power. BJTs are used in lots of circuits, like ones that do math, boost sound, or control time. They come in different packages to fit different needs. Overall, BJTs are a big part of electronics, helping circuits do lots of cool stuff, but they need to be used carefully to avoid problems.

For more detailed information on how Bipolar Junction Transistors (BJTs) work and their applications, you can check out the full article - BJT Transistors: Symbol, Basics, Construction, Working & Applications (components101.com)