Make your own home inverter

So, let's make our own inverter at home. This circuit design does not have any functional limit and comes with an efficiency of more than 75%. And in addition, it is capable of compensating almost all of our power needs and that too at very most of your power requirement at a very reasonable cost.

To clearly understand how to build an inverter, let's go through the following simple construction details: As per the circuit schematic first complete the assembly of the oscillator section consisting of the smaller parts and the IC. It is best done by interconnecting the component leads itself and soldering the joints.

The circuit of this DIY power inverter is shown in the following figure. After the 12V DC power is connected, the multi-vibrator that is composed of V1, V2, R1-R4, C1 and C2 starts oscillation, and the collector of V1 and V2 takes turns to output about 50Hz of square wave with positive polarity.

The project is based on the low cost EGS002 SPWM driver board module. The DIY inverter board can handle up to 1kW (depending the transformer size). Around $30 was spent to build this project from locally sourced parts. Watch My Full YouTube Tutorial: Features Of This Project: Key Points:

The aim of the inverter circuit is to convert 12VDC to 220VAC, Now to achieve this, we have to first convert 12VDC to 12VAC first followed by 12VAC to 220VAC using a step up transformer. In short, we can classify the designing of inverter circuit into three stages: 1) Driver stage 2) Power stage 3) Transformer

An inverter which uses minimum number of components for converting a 12 V DC to 230 V AC is called a simple inverter. A 12 V lead acid battery is the most standard form of battery which is used for operating such inverters. Let's begin with the most simplest in the list which utilizes a couple of 2N3055 transistors and some resistors.