Smoothing out a modified sine wave AC signal

[icnivad]

Decided to post this in it's own thread, rather than in the electrical help one. Has anyone experimented with smoothing out a modified sine wave signal? In theory shouldn't the right size capacitor do just that?

[cschlessman]

Problem with a modified sine wave inverter is its a stepped voltage. To date I have never heard of anyone smoothing one out for less money then an equivelent sine wave inverter.
Chcuk

[Bullwhacker007]

The other poster is correct.
You also would have to tear apart the oscillator and up the freq. and other mods the"smooth" the MSW converter - then after all that you would now have a sine wave inverter.

Better to buy one it the first place or where you can run things off of 12 volts.

Computers laptop no problem; desktop you would have to change out the AC power supply and install a DC to DC power supply - you can find them on eBay.

TV LCD etc. There are ones made to run on 12v but are expensive.
I am getting up enough courage to open my LCD TV after the warranty expires and after the power supply check the voltage and current; if workable make a 12v supply using DC power supply.