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Generally, no.

This ratio is an interesting one, and a random reader might infer an interest in solar cells.

Irrespective of the source, .45V is so small a voltage that the inverter and/or step-up switching regulator would require huge drive and inrush currents. Doing the simple math: 220VAC requires about 600V peak-to-peak; 600 divided by about one-half volt yields a multiplication ratio of about 1200!; so, the current required at 220V (say, 2 amps) would need to be multiplied by 1200, to get about 2500 Amps RMS. Peak current for such a converter would be much higher.

The basic idea is that, ignoring efficiency, volts times amps (voltage multiplied by current) should equal the same number on the input as the output. Complications ensue with peak currents and ripple voltages, but generally that product is equivalent from in to out. Write it as V * I = Watts.

There are 12VDC -> 120V (US) and 12V -> 220VAC (Europe) inverters, but that's as low a starting DC voltage as I've ever heard of. Typical island home inverters using batteries expects at least 48V, to keep that ratio low.

So, no.

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