1 Answer

How Inverter Generators work:
Generators convert mechanical energy
to electricity thanks to a phenomenon
called electromagnetic induction. Voltage is induced by the movement of a
conductor, typically coils of wire, inside
a magnetic casing. The mechanical energy used by home generators typically
comes from an internal combustion engine that runs on gasoline.
In a conventional generator, each
engine rotation produces one sine
wave of AC power. For the electricity to
produce the standard 120-volt, 60-Hz
electricity we commonly use, the engine
must run at a constant speed of 3,600
rpm, regardless of the load. An inverter
generator is designed to produce more
AC electrical energy per engine rotation
but not in a form that can be used directly; the raw electricity must first be
transformed into DC power. An electronic inverter module then turns the
DC power back into standard 120-volt,
60-Hz AC power. The advantage to this
approach is that the engine only needs
to run at speeds to match the required
load and is therefore quieter and more fuel-efficient. — J

http://namgnewsletter.com/DY/pdf_plans/Inverter-Generators.pdf