Damned aching root canal remnants...laughing damned near killed me.
My question is this...on the DC high voltage line through Ely Nevada, the inverter techs (much more advanced that I), kept a continuing uproar going about the inverter lapsing into what can be described as a sawtooth waveform with voltage peaks out of range of the over voltage safety relay shunt system.
The boys to talk to on this would be at OUTBACK if they are still in business.
When engineering at Trace, saw Xantac, the hwang-ho new buyer, looming on the horizon, they bailed and were dispersed throughout the industry.
An inverter overload output faulting into square wave can theoretically over-amp the input but for the protection fuses. A Timothy Leary shaped input waveform could theoretically throw the control section into an epileptic fit.
IMHO again, full load battery charge mode input waveform should be analyzed on a scope or scope meter.
Gawd, I wanna scope meter....baaaad....