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# Inverter Circuit- 12V DC to 220V AC Power Converter,Mosfet Inverter

Posted by Circuits Arena on Sunday, 5 June 2016

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12V DC to 220V AC Converter,
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Inverter Circuit- 12V DC to 220V AC Power Converter,Mosfet Inverter is the artlcle explaining 12V DC to 220V AC Power Converter Inverters are often needed at places where it is not possible to get AC supply from the Mains. An in...

### 12V DC to 220V AC Power Converter

Inverters are often needed at places where it is not possible to get AC supply from the Mains. An inverter circuit is used to convert the DC power to AC power. Inverters can be of two types True/pure sine wave inverters and quasi or modified inverters. Here, a simple voltage driven inverter circuit using power transistors as switching devices is build, which converts 12V DC signal to single phase 220V AC

A 12V DC to 220 V AC converter can also be designed using simple transistors. It can be used to power lamps up to

The inverter implemented in this circuit is a square wave inverter and works with devices that do not require pure sine wave AC.

**35W**but can be made to drive more powerful loads by adding more MOSFETS.The inverter implemented in this circuit is a square wave inverter and works with devices that do not require pure sine wave AC.

### Circuit Diagram:

Components Required12v Battery

MOSFET IRF 630 -2 2N2222 Transistors

2.2uf capacitors-2

Resistor

680 ohm-2

12k-2

MOSFET IRF 630 -2 2N2222 Transistors

2.2uf capacitors-2

Resistor

680 ohm-2

12k-2

12v-220v center tapped step up transformer. Working

The Power Converter can be divided into three parts: oscillator, amplifier and transformer. A 50Hz oscillator is required as the frequency of AC supply is 50Hz.

This can be achieved by constructing an Astable multivibrator which produces a square wave at 50Hz. In the circuit, R1, R2, R3, R4, C1, C2, T2 and T3 form the oscillator.

Each transistor produces inverting square waves. The values of R1, R2 and C1 (R4, R3 and C2 are identical) will decide the frequency. The formula for the frequency of square wave generated by the astable multivibrator is

F = 1/(1.38*R2*C1)

The inverting signals from the oscillator are amplified by the Power MOSFETS T1 and T4. These amplified signals are given to the step-up transformer with its center tap connected to 12V DC

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