[Milsurplus] Inverter idea

[Marty Reynolds]

.
>
> Has anyone tried to see if these inverters can be
> altered to make 400 cycles instead of 60?
>
> Jack

OK, I just looked into a 175W GE.  3 16-pin dip ICs, one
20 pin.  Lotsa glue pieces.

This was 2nd visit, 1st being a year back.  Again I felt
like the nude in the sculpture looking @ the skull saying
"Alas poor Yorrick."

These modern inverters are some kinda neat.  They're PWM
to deliver 115VAC rms independent of load.  Waveform is
series of steps that approximate a sine.  Each step made
of lots little PWM interior spikes.  And they're always
delivering ~300V p-p.

If you find the answer Jack, call - don't write!

Makes you wonder how they come to market so cheap

Time flies like an arrow

Fruit flies like a bananna

   Groucho