Transistor - created from Mind Map

Seite 1

What's transistor?์

Types

How's transistor work

Adventages

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power.

Emitter

Base

Collector

collects the current

region between emitter and collector

collects the current

NPN

PNP

The sequencce of doped regions in a npn transistor is n-region collector, p- region base, n-region emitter

Holes - Positively-charged carriers of current. Doping - Addition of impurities into a semiconductor to form regions rich in electrons or holes - either elector donors(like

phosphorus) or electron acceptors (like boron) are added into the semiconductors

The sequence of doped regions in a pnp transisitor is P-region collector,N-region base,P-region emitter

Amplifier

switches

When it works as an amplifier, it takes in a tiny electric current and produces a much bigger electric current

Transistors can also work as switches. A tiny electric current flowing through one part of a transistor can make a much bigger current flow through another part of it. .

small size and light

produce less heat than vacuum tubes

Durable: metallic construction