Knowledge popularization of diodes, transistors, and inductors 2

1. Magnifying effect

The amplification function of a transistor is one of its most important functions. By controlling the base current, the collector current can be amplified by tens or even hundreds of times. The amplification factor of a transistor depends on its working state, load resistance, and other factors.

2. Function of the switch

The switching function of a transistor is to convert an input signal into an output signal, commonly used in low-frequency switching circuits, timers, and other applications. In the on/off state, the collector current of a transistor can reach several hundred milliamps or even several amperes, so the transistor is also known as an "electronic switch".

3. Voltage stabilizing effect

The transistor can also be used as a voltage regulator to control the collector current through the base voltage, thereby achieving stable control of the output voltage. The transistor regulator has the advantages of simplicity, reliability, and low cost, and is commonly used in power circuits of various electronic devices.

3、 Inductor

An inductor is a device capable of storing electromagnetic energy, consisting of a coil and a magnetic core. The main function of an inductor is to filter, stabilize, transform, and regulate signals, and it is commonly used in various electronic devices.transistor

1. Filtering function

Inductors can filter current through their impedance characteristics, removing unwanted signals such as high-frequency noise and clutter, thereby improving the signal-to-noise ratio of the system. The filtering function of inductors is commonly used in various power supplies, amplifiers, filters, and other circuits.

2. Voltage stabilizing effecttransistor

Inductors can also be used as voltage regulators to control voltage fluctuations in circuits through their inductance characteristics, thereby achieving stable control of output voltage. Inductor voltage regulators are commonly used in various high-precision circuits, RF circuits, and other fields.transistor

3. Voltage transformation effect

Inductors can achieve voltage transformation by changing the number of turns of the coil, the material of the magnetic core, etc., converting input voltage into output voltage. The voltage transformation function of inductors is commonly used in various power supplies, amplifiers, frequency converters, and other circuits.

In short, diodes, transistors, and inductors are one of the most basic and commonly used devices in electronics. For electronic engineers and enthusiasts, mastering the principles and applications of these devices is very important.transistor