Learn Electronics Pro Complete Guide Beginners to Advanced.
Learn Basic Electronics - Beginner To Advance. The motion of electrons through a conductor gives us electric current. This electric current can be produced with the help of batteries and generators.
Electronic circuits are everywhere, from computers and smartphones, to home appliances and cars. Think of all the everyday objects that are becoming “smart”... in the future, most of the things that we own will contain some electronics. Jobs in electronics are in high demand and well paid in almost every country!
Building electronic products is incredibly rewarding, whether you do it professionally or just as a hobby. There is just something different and exciting about designing something physical that can be hold in one’s hand and that interacts with the outside world, and today it has become incredibly easy to get started thanks to cheap development boards such as the Arduino and Raspberry Pi, combined with the right knowledge.
Differently than what happens in other disciplines, knowledge of Electronics does not become obsolete, but it is always current as it is intimately connected to physics and to the fundamental laws of nature. Hence, while new components and chips might come along every year, the fundamental principles of Electronics always stay the same.
Electronics comprises the physics, engineering, technology and applications that deal with the emission, flow and control of electrons in vacuum and matter. It uses active devices to control electron flow by amplification and rectification, which distinguishes it from classical electrical engineering which uses passive effects such as resistance, capacitance and inductance to control current flow.
Electronics has had a major effect on the development of modern society. The identification of the electron in 1897, along with the subsequent invention of the vacuum tube which could amplify and rectify small electrical signals, inaugurated the field of electronics and the electron age.
This distinction started around 1906 with the invention by Lee De Forest of the triode, which made electrical amplification of weak radio signals and audio signals possible with a non-mechanical device. Until 1950, this field was called "radio technology" because its principal application was the design and theory of radio transmitters, receivers, and vacuum tubes.
Electronic Circuit
An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow. To be referred to as electronic, rather than electrical, generally at least one active component must be present. The combination of components and wires allows various simple and complex operations to be performed: signals can be amplified, computations can be performed, and data can be moved from one place to another.
Circuits can be constructed of discrete components connected by individual pieces of wire, but today it is much more common to create interconnections by photolithographic techniques on a laminated substrate (a printed circuit board or PCB) and solder the components to these interconnections to create a finished circuit. In an integrated circuit or IC, the components and interconnections are formed on the same substrate, typically a semiconductor such as doped silicon or (less commonly) gallium arsenide.
An electronic circuit can usually be categorized as an analog circuit, a digital circuit, or a mixed-signal circuit (a combination of analog circuits and digital circuits). The most widely used semiconductor device in electronic circuits is the MOSFET (metal-oxide-semiconductor field-effect transistor).