What is Electronics? Difference electrical |electronic.

What is Electronics? 

Under science, electronics or electronics is that area of ​​science and technology that studies the flow of charge (mainly electrons) through different types of mediums (vacuum, gas, metal, semiconductor, nano-structure, etc.) and devices based on them.  As a technology, it is the field of electronics that uses various electronic devices (resistors, capacitors, inductors, electron tubes, diodes, transistors, integrated circuits (IC), etc.) to produce suitable electrical circuits and by which the electrical signals are desired.  Is related to manipulation.
 This includes the study of different types of devices, improvement of them and creation of new devices etc.  Historically, the field of electronics and electrical technology has been the same and both were not considered separate from each other.  But now, with the expansion of new devices, circuits and the functions they perform, electronics have started to be taught as a separate branch of electrical technology.

In this view, more electric-power related fields (power systems, electrical machinery, power electronics, etc.) are considered under electrical technology, whereas low-power and electrical signals are similar to digital changes (amplification, filtering, modulation, analog to digital  Field related to conversion etc.) is called electronics.

Electronic Technology Parts: 
Based on circuits, electronic technology is mainly divided into two parts:

Analog electronics
Analog electronics The electrical signals in these circuits are continuous (analog) and remain constant even after processing them. For example, the transistor-amplifier is an analog system.  The development of the operational amplifier and its availability as I-CK led to a revolution in analog electronics.  Digital or digital electronic. 

Digital electronics:  
It consists of electrical signals numeric.  Digital signals can be of many types, but binary digital signals are most commonly used.  Zero / one, on / off, yes / no, low / high etc. are some examples of binary signals. Digital electronic has become very important ever since integrated circuits have emerged and millions of electronic devices are being loaded into a small chip. Modern personal computers (PCs) and cell phones, digital cameras, etc. are the product of digital electronics.  Digital electronics has given a new dimension to signal-processing called digital signal processing (digital signal processing).  Compared to analog signal processing, it is very facilitative.

History of electronics;
The modern form of electronics emerged as the development of radio and television.  At the same time, its importance emerged from the defense equipment and defense systems used in the Second World War.

The main events and phases of the development of electronics are summarized as follows:

1883 - Thomas Alvaedison discovered that electrons in a vacuum can flow from one conductor of metal to another.  Later the same principle changed diode and triode.

• Radio communication performance by Nikolai Tesla in 1893

• In 1797, Kanmar Koni demonstrated the practical use of radio communication.

• In 1904, John Ambrose Flemingne made the first diode called Radiotube. 

In 1907, Robert Ban Leiben and Lee DeForest independently created the triode capable of amplifier work. With this began the development of electronics.  The first use of electron tubes was in radio communication.

Definitions of electrical and electronic engineering.

They are similar words that cause confusion, but they are very different from each other. Explain this and related terms in more detail below.

Electrical engineering

Electrical engineering is the field of engineering that is generally concerned with the study and application of electricity, electronics, and electromagnetism.

electronic Engineering

Electronic engineering is an engineering discipline where non-linear and active electrical and electronics components and electron tubes, and semiconductor devices, especially transistors, diodes and integrated circuits, etc., are used to design electronic circuits, devices and systems. goes.

The main differences between electrical and electronic engineering below are the main differences between electrical and electronic engineering that prevent such confusion between electrical and electronics engineering as they are thin terms related to each other but they are not the same.

Electrical Engineering = Study and Utilization / Application of Flow of Electrons.

Electronics Engineering = Study and utilization / Application of Flow of Charge (Electron & Holes).

As we know we only study the flow of electrons in a conductor and an insulator, but in the case of semiconductors, we study the flow of both electrons (negative charge) and holes (positive charge).

In addition, electrical components and equipment use alternating current (AC) / voltage and are larger in size and require 230V (in the UK) and 110V (in the US) single phase AC voltages where in industry and power stations It can be 11kV and for transmission, it can be over 400kV.

Whereas, electronic components require very low direct current (DC) / voltage such as 3–12V and can be very small in size. For example, a micro processor chip may contain hundreds / thousands of small electronic components.

Another major difference between electrical and electronic engineering is that an electric circuit / network can only power an electric machine where the electronic circuit plays a role as a decision-making component and device as they follow the input instruction And a specific and functioning circuit defined by design.

Also note that "electronics engineering is one of the field / branch of electrical engineering" In other words, electronics engineering is an elder son of electrical engineering.

Satish jagtap

Hello iam Satish jagtap Electrical engineer. From: Aurangabad, Maharashtra. Edu: MIT college of Engineering.

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