Bulk-Absorption Charging Voltage
2 Concord 8D (258 AH each) Freedom 25 Inverter-Charger (130 amp) Trimetric 2025 Gauge I'm dry camping and charging my batteries. They were 30% discharged. My Concords call for 14.2-14.4v absorpti...
Forum Discussion
Salvo wrote:
It's a modified sine. It's not an inverter gen. Wayne discovered this.
Sal ... with all due respect ... prove it.
I no longer have my "Electrical Machinery" textbooks but as I recall, a spinning shaft generator "must" output a sine wave. Common sense-wise and intuitively this seems right, too.
Nevertheless, I'm open to an education on this regarding how Onan has managed to change (if they have) a rotating shaft's smooth going-up/going-down voltage waveform (sine wave) into a discontinuous voltage waveform (modified sine wave). Again ... a noisy sine wave from an Onan I can buy ... but I don't understand how Onan can put out a waveform that is discontinuous.
By the way, note the link earlier that was given above showing oscilloscope screen shots of so-called perfect sine waves coming from some types of equipment. They consist of many, many very small steps (256 or more), attesting to the fact that they're of a digitally derived origin. A rotating shaft derived sine wave is continuous (but maybe containing noise), with no steps.
P.S. I apologize for going/staying off-topic on this but I can't imagine that Onan has been putting out junk waveforms ... either since day-one, or since Cummins took over ... especially at the prices those things cost. I have another rotating shaft generator that will not run some of our RV's appliances ... that the Onan will. That's a another head-scratcher (maybe grounding related).
:)
