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.

## True Inverter Expertise Only in this Website

I have taken a lot of pain and spent time consuming sessions studying regarding how to make customized inverter designs with maximum efficiency and with minimum effort and price.

Yes that's possible, and I will explain how to do it. Once you are able to grasp the basic working principle of the various inverter concepts, believe me it would be absolutely easy to design and optimize your own specific inverter designs in your home.

To learn the points you just have to go through the links below and understand them, and yes if you have trouble grasping any of the facts, 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.

## 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

50 Watt Small Inverter Circuit – A school Science Exhibition project

How to Make a Simplest 150 watt MOSFET Inverter Circuit

Simple 100 watt Inverter Circuit for the Newcomers

## 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**

SPWM Inverter Circuit using IC 555

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

500 W Pure Sine Wave Inverter Circuit

300 Watts PWM Controlled, Pure Sine Wave Inverter

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

Pure Sine Wave Inverter, Using IC 555

SG3525 Pure Sinewave Inverter Circuit

Sinewave 3KVA Inverter Using SG3525 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

Simple Arduino Modified Sine Wave Inverter Circuit

3KVA Modified Sine Wave Inverter Circuit

Modified Sine Wave Inverter with Waveform Images Verified

Modified Sine Wave Inverter with Regulated Output and Low Battery Protection

H-Bridge Modified Sine Wave Inverter Circuit

Digital Modified Sine Wave Inverter Circuit – 250 watts

How to Make a 150 Watt Modified Sine Wave Inverter Circuit Using only Transistors

Simple 200 Watt Modified Sine Wave Inverter Circuit, Using a Single IC 4093

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

How to Build a Simplest Modified Sine Wave Power 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

### List of Solar Inverter Circuits

5kva Ferrite Core Inverter Circuit

Compact, Ferrite Core Transformerless Inverter Circuit

PWM Sinewave 5kva Inverter Circuit

**Miscellaneous Inverter Related Circuits**

Peniel says

hello Swag, Thanks for your contribution to the word of Electronics.

Pls, I need your guide on using IGBT to replace Mosfet SG3524 Inverter circuit which have been using before.

my email is penielmobile@gmail.com.

Thanks…

Swag says

Hello Peniel, you can replace IGBT directly with a mosfet by matching the parameters appropriately

Peniel says

Thanks…

Would it not need a resistor between its gate and Emitter (source) to continually discharge its inner capacitive character…

And what IGBT Value is best for 2KW…

Swag says

It may not be required if you apply a PNP/NPN buffer to its gate as shown below

https://www.homemade-circuits.com/wp-content/uploads/2018/07/igbt-driver.png

you can easily search for an equivalent IGBT by typing 2kv IGBT i search, you may find many options. to choose from

Ainsworth Lynch says

My issue would be getting an auto transformer made also that would be expensive.

ainsworth lynch says

Good Day,

I would like to build a voltage stabilizer for audio amplifiers because in my country in some areas we have very bad power supply when heavy loads are pulled from mains supply.

Do you have any schematics?

I was thinking that an inverter could be used and a power supply could be used for the dc stage.

Swag says

Good day,

using an inverter and power supply would waste some energy and could be an overkill.

better to use an autotransfromer and sequencing relay network, as suggested in this article:

https://www.homemade-circuits.com/5-kva-to-10-kva-automatic-voltage-stabilizer-circuit-220-volts-120-volts/

Sherafudheen says

Hi Sir,

I have 12-0-12 280V transformer,

How can I reduce the out put volts to 240 in an arduino pure wave inverter project.

Swag says

Sherafudheen, you can probably do it by reducing the PWM

Tikumdas Motwani says

Dear Swatagam

Your collection of voltage inverters is really impressive. But sadly the schematic I am interested in based on SG3525 PWM can not be enlarged and I can’t read values of resistors and caps. I can’t find its replica either anywhere on net. If you have bigger version of this diagram than its more than desired to please publish it here for our benefit. If not you have my unconditional gratitude anyway.

Swag says

Thanks Tikumdas,

can you please show me the schematic?

for providing the link and the image you can use the forum page

https://homemade-circuits.com/forums/forum/electronic-circuit-forum/

Swag says

I have removed the forum due to frequent site crashing issues…you can continue here for the time being….