A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is made of semiconductor material, typically silicon, and has three terminals: the emitter, the base, and the collector for bipolar junction transistors (BJTs), or the source, the gate, and the drain for field-effect transistors (FETs).
Types of Transistors:
- Bipolar Junction Transistors (BJTs)
- Field-Effect Transistors (FETs)
- Darlington Transistors
- IGBTs (Insulated Gate Bipolar Transistors)
Applications of Transistors in Appliances
- Computers
- Televisions and Radios
- Audio Equipment
- Power Supplies
- Home Appliances
- Lighting Systems
- Mobile Phones