Knowledge popularization of diodes, transistors, and inductors 1

1、 Diode

A diode is a semiconductor device and one of the most common devices in electronics. It is composed of p-type and n-type semiconductors and has unidirectional conductivity, which means it can only conduct under forward voltage and turn off under reverse voltage. There are many types of diodes, including ordinary diodes, BQ24040DSQR Schottky diodes, light-emitting diodes, etc.transistor

1. Ordinary diode

Ordinary diodes, also known as rectifier diodes, are one of the most common types of diodes. Its main function is to convert alternating current into direct current, and it can also be used for signal detection, voltage stability, and other purposes. In general, the forward operating voltage of a regular diode is 0.6-0.7V, and the reverse breakdown voltage is around 50-100V.transistor

2. Schottky diode

Schottky diode is a special type of diode composed of an n-type semiconductor and a metal. Schottky diodes have the characteristics of low forward voltage drop and fast recovery speed, and are commonly used in high-frequency circuits, high-speed switches, and other fields.

3. Light Emitting Diodes

Light emitting diodes are devices that can convert electrical energy into light energy, commonly used in indicator lights, digital tubes, display screens, and other applications. The working principle of light-emitting diodes is similar to that of ordinary diodes, but their structure and materials are different. The color and brightness of a light-emitting diode depend on its semiconductor material and doping type.transistor

2、 Transistor

A transistor, also known as a crystal transistor, is a semiconductor device composed of three regions: the emitter region, the base region, and the collector region. Transistors have multiple functions such as amplification, switching, and voltage stabilization, and are widely used in various electronic devices.