Hello,
Without getting into whether delivering the same power via a certain waveform for a certain time on-battery is better for certain equipment, I'm just really curious about how Cyberpower PFC units produce a sinewave at half the street-price of other vendors' (Eaton, APC, Tripp-Lite, etc.) models.
I get that the CP-PFCs are designed to work well with Active-PFC PSUs, and guess that "adaptive sinewave" and "pure sinewave" are likely marketing terms to reinforce this distinction from common stepped or square waveforms, rather than electrical descriptions.
And since there's no dynamo inside, (as a non-EE) I presume any UPS-produced sine wave is made up from discrete pulses at an extremely high frequency. (Sort of like a CD with originally analog music that both has been sampled and is played back at such a high frequency that for most...