4 ms·
Testing the output of some UPSs from around the office. Checking out the results and finding avenues for further exploration.
by LabsLucas 5mo ago
Testing the output of some UPSs from around the office. Checking out the results and finding avenues for further exploration.
- exmadscientist 5mo agoPlease just buy a pair of mains voltage diff probes. They're not expensive (around $500 each new, much less used) and they will eliminate the crazy connection scheme and give you true input -> output fidelity.
- Aurornis 5mo agoPlease spend $300 on a differential probe https://www.micsig.com/DPA/ https://www.micsig.com/DPA/ I hope nobody sees this article and tries to replicate the experiments as presented. You can get away with it when everything goes correctly, but a diff probe is good insurance.
- zorgmonkey 5mo agoPlease just buy a proper differential probe for stuff like this, you definitely don't need the R&SRT-ZHD mentioned in the article. Otherwise loved the article btw.
- elevation 5mo agoGreat to see LTT in this space, you're well positioned for it (access to a variety of hardware.) Would love to see a more developed experiment design. Would love to see how the waveform changes over load -- perhaps test at 0, 10, 20, 40, 80% load. Also, how does waveform vary as the battery depletes? Another metric is how capacity varies with load. If a UPS gives me 1 hour @ 100w, will it give me 10 hours @ 10w? How long will it power an idling rpi5 (<1w)? How long will it give my workstation PC?