How to Make 1.5V DC to 220V AC Inverter




Introduction: How to Make 1.5V DC to 220V AC Inverter

HI! I am Junez Riyaz, currently doing Bachelor of Technology in the field of Electronics and Comm...

Hello guys, In this Instructable I will instruct you to make your own 1.5v DC to 220v AC inverter with less number of components.

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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. These true /pure sine wave inverters are costly ,while modified or quasi inverters are inexpensive.
These modified inverters produce a square wave and these are not used to power delicate electronic equipments . Here, a simple voltage driven inverter circuit using transistors as switching devices.

Step 1: Components Required

Transformer (6v:220v) - 1 [ Banggood ]

AA Battery Case - 1 [ Banggood ]

Switch - 1 [ Banggood ]

Perforated PCB - 1 [ Banggood ]

BC 547 transistor - 1 [ Banggood ]

BD140 Transistor with heat sink - 1 [ Banggood ]

0.1uF capacitor - 1 [ Banggood ]

30K Ohm resistor - 1 [ Banggood ]


Soldering Iron [ Banggood]

Step 2: Watch Video First !

This video gives you all the information you need to build your own 1.5v DC to 220v AC inverter. During the next steps however I will present you some additional information to make the project even simpler.

Step 3: Circuiting

Here you can find the circuit.

You can see my PCB traces and it is easy to understand while making.

Place all the components on the PCB according to schematic.

Solder all the components carefully.

After circuiting now the time to test with a 220v bulb.

Step 4: You Made It!

That's all guys you made it.

Feel free to comment.

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    19 Discussions

    how could I generate higher frequencies? specifically, I want the high voltage, but I want to use something to automatically sweep between 300hz - 800hz (I would Likely use a micro-controller if possible), with a goal of reaching 250volts. Would you know if this is possible?

    or better question, what is causing the 50hz - 60hz frequency of the stepped up 220 volts?

    How long does it take till the battery is empty?

    plz provind with the working of that systerm

    Is the transformer is ferrite core

    Where to buy transformer and is it ferrite core

    Can I use 5V/3.6A Powerbank at the input side?

    I have no done the calculations, but I don't think that you will have enough AC current to power much/for very long.

    2 replies

    Hello, the device I did, but it does not work, can you please tell me how the device works? I mean which one, the transistor opens first, the second one, and so on, just describe it so that one understands how the inverter will blink.

    Thank you

    Today's day,

    should the Transformer label be 6 V: 220 V?

    I m getting output around 80 to 90 v , i have connected 3v battery ,and when connect 3w led bulb output of transformer showing 15v , how? And how should I get 230v output

    If by "excessive" you mean at least 146 times the output current, then yes :)

    1.5v is a really low starting point for getting mains voltage.

    Often a 220v/9v transformer will be driven with up-to-12v to get 220V out, because of losses.

    So - 220v/6v transformer is probably not going to produce 220v when driven with 1.5v, the sums don't add up, so can you measure the output voltage and see what you are actually producing? It may well be enough to tickle a CFL bulb into life, but not for more critical loads.

    hi MikB any idea on how to make this work for a heavier load and or be more applicable for everyday life?

    Not to diss the original circuit -- but "I wouldn't start from here" :)

    It's like a "Joule Thief" on steroids, and with AC output. Very simple, ingenious idea, and no doubt works for some things (like a CFL), but it's a real struggle to raise 1.5v to 220v at meaningful current.

    There are many designs for inverters and UPS style circuits on the net, many have been posted on Instructables.

    Good starting points for a beefier unit: Runs on 12v or 24v. Frequency controlled at 50Hz. Output voltage regulated, even loosely, to 210-250v range.

    That takes more parts :)

    I'd still like to know what the output voltage of the above circuit really is, measured, off and on load.

    A pretty neat idea, Junez. Ok, it may not deliver a high enough voltage for a 'long' time, but what you made shows a great example of electrical energy modification. Keep 'em coming. All the best for the future.

    hello. What is the frequency of the output please?

    1 reply