Home-made Solar Power 240 Volts AC Inverter for running TV+DTH during power failure

  • Thread starter Vinay
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Vinay

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Hi friends,
In a metro city, there are no power cuts at all except for rare emergencies. But when I am at my native place in South India, often there is routine load-shedding and power outages.

To overcome this problem, I have made an inverter circuit which draws 9.4 volts from 2 Solar Panels and drives a Transformer giving 240 Volts AC power. The direct output from a single solar panel can be used to charge a mobile phone / USB-charging device directly. It has a Nokia-type pin provision too.

This works as long as there is bright sunlight falling on the panels. The output from the inverter is enough for a 40Watts tubelight, a table-fan, a small tv or a laptop. Also if we add one more panel and make few changes in the circuit, a car battery of 12V can be charged and used to drive the transformer to power devices when there is no sunlight.

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RE: Home-made Solar Power 240 Volts AC Inverter Pics

Excellent innovative work, vinay :tup
 
RE: Home-made Solar Power 240 Volts AC Inverter Pics

How much you spent for this experiment ?
 
RE: Home-made Solar Power 240 Volts AC Inverter Pics

kramkumar said:
How much you spent for this experiment ?

The Solar Panels cost me Rs2000, Circuit with general board + electronic components cost around Rs200.
9 volts Transformer I removed from old broken Radio at home. Pin-adapters etc I got free with mobile 4 years back.
The above experiment items will be fit into a plastic soap box by me soon :)
 
Thanks Vinay For Sharing Experiments Also Detail Info.
How much Load On this For Good working ? Only A Mobile Charger Or 20/30 Watt Cfl ?
I have Two Solar Panel Each Out 12 V , How to use this
 
Vikram said:
Thanks Vinay For Sharing Experiments Also Detail Info.
How much Load On this For Good working ? Only A Mobile Charger Or 20/30 Watt Cfl ?
I have 2 Two Solar Panel Each Out 12 V , How to use this

Dear Vikram Sir,
With my circuit settings and capacity, it can support 2 X 20 Watts CFL or 1 X 30 Watts CFL.
For mobile charging, 12V has to be reduced to 5 Volts by using step-down circuit.
You will have to use 12Volts-240Volts Transformer instead of the 9V which I have used. Thats it.
If you use 2 panels then you can power 4 X 20 Watts CFL and 2 X 30 Watts CFL without overloading the circuit. You can add Fuse or MCB also for additional protection.
 
In our area, there is regular load shedding at night for 1-1.5hrs, how can Solar Panel help us at night?
But nice and detailed work Vinay Ji.
 
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