Introduction: Simple 12 Volt to 240 Volt Mini Inverter Using MOSFET & 2N2222 Transistor

In this tutorial i will show you how to make a Simple 12 volt to 240 volt mini Inverter using MOSFET & 2N2222 Transistor

To build your own 12 volt to 240 volt mini Inverter using MOSFET & 2N2222 Transistor you can watch the video embedded in this step or continue reading.

Step 1: Parts List

Picture of Parts List

***Parts List***

  • 2 * IRF540 MOSFET
  • 2 * 470 Ohm
  • 2 * 2N2222
  • 2 * 4.7uF/50v
  • 2 * 3.3k Ohm
  • 2 * Heat Sink
  • 1 * 2 & 3 Pin Terminal Block
  • 1 * 1.2k Ohm
  • 1 * RED Led
  • 1 * Bulb Holder
  • 1 * 240v to 12-0-12V 5amp Transformer


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Step 2: Circuit Diagram

Picture of Circuit Diagram

Construct the circuit according to the circuit diagram.

Calculation :

Let's see the calculation

The frequency is given as

f = 1/T


f = 1/1.38*R*C

where : from our circuit diagram R3=R4=R & C1=C2=C

In my country the standard frequency is 50Hz

So considering that our f = 50Hz

since i have two spare electrolytic 4.7uF/50v, i have chosen C1 & C2 to be 4.7uF

Now we are left with R3 & R4 calculation

Substituting all the values that we know, we get

R = 1 / 1.38 * 50 * 4.7u

Hence R = 3083 = 3k

Considering the nearest available resistor value i have chosen 3.3k ohm

So our values are

R3=R4=3.3k Ohm


f = 50Hz

You can watch the construction & testing of the circuit in the video embedded in the first step or you can also watch it by clicking here

Thank you for reading !!!


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About This Instructable




Bio: I like making new things from trash. For more cool content please subscribe to my YouTube channel @
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