Inverter Circuits

The articles discussed below present a mammoth collection of DC to AC inverters and converters with many different specifications and toplology.

We have many simple versions designed to work with small batteries such as 12V 7Ah batteries to produce around 100 to 500 watts 220V AC, and also the gigantic ones which are conditioned to generates awesome amounts of power in the range of 1000 to 5000 watts.

Since all these converters primarily utilize battery power for converting lower 12V to 24V DC to 120V or 220V AC, it becomes mandatory for these systems to employ a battery charger system also, without which consistent functioning of the units can become impossible.

The following articles include specialized battery charger circuits which can be used for reliable recharging of batteries and for using them in the converter applications.

When we talk about DC/AC converters we basically refer to the various inverters and their topologies. An inverter is a device that converts power from a low DC source to a high AC level.

The low voltage DC source could be from a battery or a solar panel or any other option having the capacity to generate high current low voltage DC.

The word inverter arises from the function of the unit wherein it inverts the low voltage DC into a high voltage AC using a transformer.

To learn the points you just have to go through the links below and understand them, and if you have trouble grasping any of the facts, you can feel free to express them in the comments for getting a quick solutions from me…..!

The following links provide us some of the best sine wave and square wave inverter circuits that you may select and customize as per your own power requirement specs.

Some of the best square wave and sine wave inverter circuit designs have been presented on this page, designed and researched by me, created for easy understanding for the new hobbyists and new engineers.
Simple Inverters
A simple inverter circuit must be simple to build using minimum number of components and should be suitable to all new electronic hobbyists.

The following collection of simple inverter circuits make sure that the concept employed is indeed simple, and newcomers in the filed such as school students and amateurs are able to understand these circuits and build them quickly to see the intended results successfully.

Technical Specifications:

Waveform: Squarewave
Power Devices: BJT, such as 2N3055, TIP31
Battery: 12V/7Ah
Transformer: 12-0-12V/5Amp or 9-0-9V/5Amp
Power: 30 watt to 100 watt

List of Simple Inverters Circuits:
Making a Simple Inverter Circuit

Simple Arduino Modified Sine Wave Inverter Circuit

Simple IC 555 Inverter Circuit

Simplest Full Bridge Inverter Circuit

Mini 50 Watt MOSFET Inverter Circuit
PWM Inverters
PWM inverters which are included in this website typically make use of PWM pulses for processing the output waveform of the inverter.
What’s PWM Inverters:
It is a kind of inverter where a normal squarewave inverter output is suitably processed through a PWM circuit to ensure that the output resembles a sinewave closely enough, and acquires the technical RMS attributes of a sinusoidal waveform.

In this website we have tried to present a handful of researched squarewave inverter circuits which can be used for building effective PWM modified squarewave inverters at any power level.
Technical Specifications:

Waveform: PWM Processed Squarewave
Power Devices: BJT, such as 2N3055, TIP31
Battery: 12V/7Ah
Transformer: 12-0-12V/5Amp or 9-0-9V/5Amp
Power: 30 watt to 100 watt

List of PWM Inverters Circuits

PWM Inverter Circuit Using IC TL494

PWM Inverter Circuit Using Tiny Ferrite Transformer

PWM Sinewave 5kva Inverter Circuit

Interfacing Arduino PWM with any Inverter Circuit

300 Watts PWM Controlled, Pure Sine Wave Inverter

How to Make a 500 VA PWM Controlled Modified Sine Wave Inverter Circuit

3kva Transformerless Inverter Circuit
Pure Sinewave Inverters
The best Pure sinewave inverters will technically produce an output that will have its waveform closely matched like a sinewave. In the above PWM sinewave, the output might not be too effective in replicating a sinewave, but a pure sinewave inverter will do it perfectly and allow the inverer to produce a pure sinewave output.

These inverters therefore become very suitable for powering sensitive and critical electronic equipment such as many medical related equipment, amplifiers, computers, TV and laptops.

This website is the first of its kind to present reasonably good quality pure sinewave inverters which can be actually built by any newcomer in the filed and make him feel proud experience. The user can not only build these sophisticated yet easy inverter designs, but also can learn the concepts in-depth and get enlightened regarding all the technical details.

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Technical Specifications:

Waveform: PWM Pure Squarewave and True Sinewave
Power Devices: Mosfets, IGBTs and BJT
Battery: 12V/7Ah, to 12V/100Ah, 24V/100Ah, 48V/100Ah
Transformer: 12-0-12V/50Amp or 9-0-9V/50Amp, 0-12V/100Ah, 0-24V/100Ah
Power: 300 watt to 5kva

List of Pure Sinewave Inverter Circuits
Arduino Pure Sine Wave Inverter Circuit

Pure Sine Wave Inverter Circuit Using IC 4047

IC 556 Pure Sine Wave Inverter circuit

Make This 1KVA (1000 watts) Pure Sine Wave Inverter Circuit

How to Build a100 Watt, Pure Sine Wave Inverter Circuit

Making a Pure Sine Wave Inverter – Concept Explored

SG3525 Pure Sinewave Inverter Circuit
Modified Sinewave Inverters
A Modified sinewave inverter are actually similar to the PWM inverters and will produce the output that may be a modified version of a sinewave, that is it may be resembling closely with the RMS value of the sinusoidal wave, but as far the shape is concerned it could be quite crude in this respect.

A few best and easy to build modified sinewave inverter circuits have been presented in this website for your building pleasure.

Technical Specifications:

Waveform: Modified Sinewave
Power Devices: Mosfets, IGBTs and BJT
Battery: 12V/7Ah, to 12V/100Ah,
Transformer: 12-0-12V/50Amp or 9-0-9V/50Amp,
Power: 30 watt to 300 watt

7 Modified Sine Wave Inverter with Waveform Images Verified

H-Bridge Modified Sine Wave Inverter Circuit
Solar Inverters
As the name suggests a solar inverter is a device that converts DC electricity from a solar panel into AC mains 220V or 120V for powering the connected appliances. Actually solar inverters are ordinary inverters which are integrated with solar panels for doing the same job that they were assigned to do with batteries.

Alternatively solar inverters are also used for charging batteries from the solar panel during day time and then using the charged battery for powering homes and appliances during night.

In this website you will see a good variety of solar inverter circuits which are actually regular inverters but attached with solar panels for the required outputs.

Technical Specifications:

Waveform: Squarewave or or Pure Sinewave or modified Sinewave
Power Devices: Mosfets, IGBTs and BJT
Battery: 12V/7Ah, to 12V/100Ah, 24V/100Ah, 48V/100Ah or directly from solar panel
Transformer: 12-0-12V/50Amp or 9-0-9V/50Amp, 0-12V/100Ah, 0-24V/100Ah
Power: 300 watt to 1000 watt
Solar Panel: 50 watt to 200 watt

List of Solar Inverter Circuits
Designing a Solar Inverter Circuit – Tutorial

Connecting MPPT with Solar Inverter

Solar Inverter Circuit for 1.5 Ton AC

Solar Inverter/Charger Circuit for Science Project

Making a Transformerless Solar Inverter Circuit

How to Make a Solar Inverter Circuit

3 phase Solar Submersible Pump Inverter Circuit

Solar 3 Phase Inverter Circuit

Calculating Solar Panel, Inverter, Battery Charger
Ferrite Core Inverters
Ferrite Core inverter circuits are made using ferrite core for the transformer instead of the conventional iron core transformers. The main benefit of using ferrite core instead of iron core is that the inverter become extremely compact, streamlined, lightweight, more powerful and hugely efficient.

However the downside is that ferrite inverters are equivalently more complex to build than iron core inverters, because of the fact that ferrite cores require a high frequency in the order of 20 to 100kHz to operate and produce the specified efficient outcomes.

Since the final required output from the inverter needs to be at a a comparatively lower 50Hz or 60Hz frequency,  the high frequency operation becomes incompatible for a direct use with the appliances. To counter this ferrite inverter topologies have to first convert this high frequency inverter output into DC, and then again convert this DC into a 50/60Hz output with a PWM processing.

All these procedures ultimately compels the unit to become highly complex with its design.

No worries, even though it might look complex from outside, here I have tried my best to unfold the various stages of a ferrite core inverter concept that would allow the new hobbyists to learn the intricacies of these inverters through straightforward layouts and explanations.

Technical Specifications:

Waveform: Squarewave or or Pure Sinewave or modified Sinewave
Power Devices: Mosfets, IGBTs and BJT
Battery: 12V/100Ah, 24V/100Ah, 48V/100Ah
Transformer: 12-0-12V/10Amp or 9-0-9V/60Amp, 0-12V/100Ah, 0-24V/100Ah
Power: 300 watt to 1000 watt

Miscellaneous Inverter Related Circuits

Inverter Changeover
Grid Tie Inverter
Full bridge Inverter
Multilevel Inverter