How Inverter Works | What is Inverter | AC and DC current | Electrmagnetic induction | Type of inverter |

We can't imagine a our life without electricity. its become basic need of everyday life. the electronic devices like smart phone, T.V, A.C, electric moter and many more consume lots of electricity. just imagine a day without electricity, we could not use the any kind of electronic device. the electricity is fuel of our daily used appliances. there are two different types of electricity used in our houses and offices. these two types are Alternating current (AC) and Direct current (DC). let understand these both types of electricity in brief

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AC (Alternating Current) is a type of current that flows in both directions positive and negative, and continuously change it direction about 50 to 60 time in a second. since its continuously change their direction hence its called the alternating current.

DC (Direct Current) is that type of current which flows in only one direction either positive or negative. it doesn't change their direction with time. since its flows in only one direction hence called the direct current.

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India is the world third largest producer and consumer of electricity, but still electricity crises are found in both rural and Urban areas. and the power cut is an everyday problem in India. daily 3 to 4 times in a day the power supply is cut off for half to an hour each. just imagine you are working one computer and preparing an important presentation suddenly power cut off and you lost your all data. Hence Inverter is the solution for daily power cut. Inverter is a device the converter DC current of your battery (like car battery) to AC which can easily used in the household appliances.

What is Inverter

Inverter
credit : amazon.in

Our most of electronic appliances design to work with AC current. Simple and basic circuit are design for DC current this current can obtains from AC current also by a electronic device called diode.

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Diode is a semiconductor device using DC current to AC. it only allow to flows of AC current in one direction. 

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Inverter is the device that change the the DC current of the battery to AC current. this device provide uninterrupted power supply to circuit. when the main power cut off then the the inverter maintains power in our circuit. since all the moderns electronic devices are design for working with AC current but we  cant store AC current by mean of batteries, we can only store the DC in batteries by using chemical changes. hence we need a device that convert DC current into AC,inverter is the device that done it efficiently.

How Inverter Works

The main deference between the AC and DC current is that the direction of Ac is rapidly change about 50 to 60 times in a second. but DC doesn't change their direction with time it maintain their direction. if we will change direction of DC current of battery is about 50 to 60 time then DC change into AC. by mean of our hand is is very difficult to manually change the direction of DC current so rapidly, so we need a device for changing the direction of current quickly. this can be done by mean of the electronic element like transistor, oscillator etc. they provide ac output of higher voltage from taking dc input of lower voltage. let me explain the process of oscillator that how it convert ac into dc.

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Oscillators are device that convert constant and single directional current into bi-directional current. it is nothing but a LC circuit in which a inductor are connected with capacitor which parallel connected with a dc source battery.  in following circuit the battery of v voltage are connected in the series with the capacitor by an altering key, when the key touched to A the capacitor begins charged and after it key touched to terminal B then the current pass through the inductor L, and it produce a magnetic field around it. due to this the capacitor again charged in reversed way and hence reverse current passing in circuit. thus it provide ac output by taking dc input.

LC Oscillator

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Type of Inverter

in market you will get the variety of inverters that with different feature, its all have a common feature that they convert dc into ac. but the only difference is found in type of ac wave that it produced. on the basis of production of wave classifies its into three group.

• Pure Sine wave inverter
• Modified Sine wave inverter
• Square wave inverter

AC waves

Pure Sine Wave Inverter

That inverters are converting the dc into the perfectly sinusoidal ac wave by the mean of the oscillator and the transistor. in this inverter oscillator takes current from the dc source and convert it into pure sine wave ac current with lower amplitude which can further amplified by transistor as amplifier and finally the transformer convert it into high voltage ac output.

Sine wave inverter is provide perfect sinusoidal wave are compatible for any type of load like, resistor, capacitor, inductive and other electronic device.

pure sine wave inverter
credit : solar-electric.com

Square Wave Inverter

Some inverter also provide the square ac wave those are good for any type of resistive circuit, but not suitable for any other type of loads. the basic component of this inverter are the transistor and diode as well as the resistors, it also give the ac wave of same frequency but the type wave may altered.

Square wave inverter
credit : Luminous

I hope you understand the concept of inverter and the working principle of it, if you any query about the topic please comment below, you can ask any question any science topic.