Transistor
The transistor is a shortcut to (Transfer Resistor) and is one of the most important components of electronic devices created by inventors Walter Pratten, John Barden, and William Shockley, which is a semiconductor crystal covered with germanium or silicon.
It contains a thin crystal so that the central region is a positive or negative semiconductor, and the base between positive or negative semiconductors is called the "two outer regions" and has a great ability to amplify electronic signals. The transistor is often used to amplify or switch electronic signals, and it contains three links that help to connect to the current circuit current or voltage difference This type is called a "transistor output pair", and this pair changes the current emitted through the last pair of transistor outputs
This changes the current passing through another pair of transistor outputs, because the control (output energy ) is greater than (input energy) which gives the transistor amplifying the electrical signal, and the transistor is the newly emerging electronic infrastructure. They are used in many different devices such as amplifiers, computers, phones, and other electronic devices. The transistor is one of the most important and greatest achieve ments (20th), as some transistors are individually wrapped but most are in integrated circuits.
Why is the transistor so important ?
The importance of the transistor
* The transistor has two main functions: turning the power off and on. About the electric current.
* Boost and amplify electrical current
The low-voltage voltage controller is called the input signal in the two functions
Transistors are closed and opened very quickly on laptops and desktop computers because it performs the process of processing electrical charges, which represent information in binary form, is "0.1". In a binary numbering system when transistors move electrical charges one by one. The electrical circuits examine Logic, solve logical problems, pictures and words under observation, and perform all other computer operations.
How the transistor works
The transistor works in a working method called (the traditional mechanical switch), which connects or cuts the flow of electrical current, by connecting or disconnecting the ends of the wires, where the transistor contains a signal that tells the device to connect or disconnect, and thus the device can be turned on or off, so the transistor He possesses the control feature, and we conclude from this that the transistor controls the movement of electrical electrons, as its action does not depend on the conduction or cutting of the current, but rather its function also is to control the amount of electric current passing through, in addition to that it alters or amplifies electronic signals , And with that The individual is allowed to control the device by adjusting the circuit board. The transistor also performs a variety of electrical tasks, because of the ease of the electric current flowing through it by using the low-power control signal located at the three metal terminals of the transistor, and the current can be transferred To a voltage by passing it through the resistor device, or by changing the voltage by loading the resistor, in order to change the resistance of the transistor itself, and this is called the force of inflation, or the increase in the amplitude process, which is one of the most fundamental processes in the field of El Electronics
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