On 2008-04-11, wrote:
These are true sine wave inverters, are quite efficient, regulated, and
phase synchronized to the grid so switchover is transparent.

You can also get small UPSs with decent inverters, and they aren't
overly expensive.

But all this misses the point, the point was Jay believed it was
impossible to get 110vac with current technology, which is demonstrably
untrue (and has been untrue for decades).

Inverters and DC-DC converters don't need to be inefficient either, I've
not built my own inverters yet, but I've built a switch mode DC-DC
converter out of dirt cheap parts (CMOS 555, a handful of discrete
components including a chunky power FET, and a home made inductor) which
pushed 90% efficiency.

--
From the sunny Isle of Man.
Yes, the Reply-To email address is valid.