How to Build Inverter at Home?

Introduction: How to Build Inverter at Home?

About: I'm from India and love making projects on electronics, specially with arduino. Internet is the only guidance I have and I've been into these since I was 11.

Necessary Hardware Components

12 V battery

Resistance 100W x2

Resistance 1.2kW x1

Resistive Trimmer100kW x1

Red LED x1

MOSFET Transistor (IRF540ZPBF) x2

IC (CD4047BEE4) x1

Transformer (12-0-12, 50VA) x1

Lamp (7.5W 220v AC) x1

Polyester Capacitor (0.1mf) x1

Why I built Inverter at home?

It was night time, I was reading my course subjects for the preparation of Exam and suddenly the light went off. I called the substation and came to know that the supply of electricity will continue only after 5 days because of some serious problem in the generation unit. It would hamper my study So, I decided to make Inverter by myself which can at least provide light for studying. Then I started collecting hardware components and begin making an Inverter. It took me a day to make an Inverter. However, I was happy because I could study more 4 days without a supply of electricity from the grid. Here’s a procedure how made an Inverter at home.

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Step 1: Gathering Additional Components

After collecting important hardware components, I needed to solder them in a PCB board. So, I bought the necessary devices to assemble the device:

Soldering Iron

Soldering Wire

Heat Sink

PCB board Connectors

14 pin IC Base

Connectors are used for proper plug and play connection between components. IC Base was necessary because direct soldering the IC on the PCB can damage the IC due to excessive heat.

Step 2: Mount the MOSFET Transistor Onto the Heatsink

Heatsink is necessary to extract the heat from the transistor to the environment so that the transistor won’t get damaged. Tighten the Transistor on the heat sink with nuts and bolt. After, fix it to the PCB board.

Step 3: Placing the Components on the PCB

Insert the hardware components as shown in the figure above. Make sure you placed them correctly. Two green devices are connectors.

Step 4: Soldering the Components to Fix Them on PCB Board

The solder components are shown above.

Step 5: Understanding the Pin of Transistor and IC

If you face transistor towards yourself, then 1st pin is Gate, 2nd drain and third is the source pin (G, D, S) respectively.

Similarly, for recognizing the pin for IC, you can refer the above IC figure.

Step 6: Connecting Each and Every Component According to Circuit Diagram Shown Below:

After soldering the pin of components on to the PCB, connect drain of both transistor to 12-volt pin of transformer and connect 0v to the positive of battery, 14th pin of IC as shown in the fig above.

Step 7: Final Circuit With All the Components

This is the final complete circuit of the home-made inverter.

Testing and Conclusion:

We have successfully built home-made inverter. Connect 7.5W CFL to the output of the transformer. Never ever connect an inductor load to this inverter. Also, make sure that you won’t connect the powerful device to the inverter. It’s a simple inverter for lighting purpose. Use 70AH battery which can provide lighting up to 24 hours with a full charge of a battery.

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