What is an Inverter and why would I want one?
An Inverter is a device that takes the power from your 12 Volt or 24
Volt DC battery and converts it to 230 Volt AC power to run your normal
household appliances on. For instance you may want to run a T.V.and
D.V.D. Player whilst at sea on your yacht.
How does an Inverter work?
An Inverter boosts your 12 Volt or 24 Volt DC power by “switching” it
to create pulses of AC electricity. The "switching" is done by various
electronic components such as mosfets. The frequency at which these
operate the “switching” process determines how closely the electical
current resembles mains AC.
What is the difference between a Pure Sinewave Inverter and a Modified Sinewave Inverter?
The end of the last answer is the key to this. A Pure Sinewave
Inverter uses a greater frequency of “switching” along with filtering to
achieve a very close approximation to mains AC electricity. The diagram
shows what a pure sinewave should look like. Inverters achieve a
similar shape in a series of small steps of on /off switches. Pure
Sinewave Inverters achieve a greater match to this form than Modified
Sinewave Inverters. Not surprisingly they are more expensive than
Modified Sinewave Inverters. Link
