Life goes beyond our imagination, as with circuits also

Life goes beyond our imagination, as with circuits also

Saturday, June 28, 2014

Virus Inverter : The 3 Idiots inverter

Dude, you might have heard about Virus inverter from the popular Bollywood movie '3 Idiots'.
Aamir Khan made an inverter that works on car battery. Wow!!!
Do you guys ever thought how he made it.
Before posting this I googled about it, but I could not find anything.
So let me to describe about it.

We can think from reverse.....

  • It operates Bulb and other ac devices; its an inverter. So we need sine wave.

  • It uses car battery which is DC. So DC to AC. That is, we need an oscillator (multivibrator).

  • Oscillator is a small device used to produce sine wave from DC.

  • But the problem is that we only use small dc, say 12V. Then we get a sine wave of 12V.

  • 12V to 230V  ------>  use a transformer.

Virus inverter is done, use a phase converter at last stage if needed, only for very large load. (3-phase is better than single phase).


Example : Select RC phase shift oscillator (choose freq = 50Hz, select resistor values)
                 Supply from battery.
                 Connect to step up transformer.

PS : Car battery is used, because it has high power; can drive large current applications