What is a transistor?

A transistor is a radio element made ofsemiconductor material and having three outputs - a base, an emitter and a collector. The main function of the transistor is to control the current in the circuit. Let's see what a transistor is and where it is applied.

In a general sense, a transistor can be called anya device that can change the signal if a change has occurred on the control electrode of the device itself. A classical transistor, which is called bipolar, can control the current at the output of the circuit in proportion to the current change or the input voltage. In this case, it is important to note that a small change in input transistor can turn into a significant change in the output parameters, that is, the transistor has an amplifying property.

Where is the transistor used?

The transistor is widely used in circuitsamplifiers, in this case the transistor operates in the so-called amplification mode - the mode of generating arbitrary pulses. However, when it comes to digital technology, a key mode can also be used to create an amplifying circuit - the mode of generation of rectangular pulses.

Also transistors are widely used forGenerating generators, and, in this situation, both the amplification mode and the key one are used, depending on which type of generator is to be made.

In addition, transistors are used to create electronic keys, here they work in a key mode.

Find more interesting in the Definitions section.