Ralph Mowery wrote:
=================
>
> >
> I have often wondered why there are inverters out that convert 12 volts
> to much over 1000 watts. Even that is high, but it may take that to
> start the small motors or the input rush of other electronics.
>
** These supplies use " modified sine wave" aka variable pulse width rectangular waves.
The peak voltages are the same as the usual AC supply.
A lot of overload current could be avoided by having a "soft start" system.
The unit would need a "start" button that brings up the duty cycle of the output wave from zero over a few seconds.
..... Phil