Interesting. At one point I was strongly interested in making a ups that would use a minimal number of supercaps instead of a battery and just shut down a server within a minute or two. Thinking aloud, there’s also some opportunities in making the alert connection wireless (perhaps a PoE passthrough that talked IPMI and wirelessly back to the ups) or at least doing turn off via Bluetooth.
Laziness (and seeing a decent deal for a regular pure sine ups) eventually got me. The big hurdle I had in thinking in terms of avoiding a sla battery is that they’re cheap compared to supercaps. There were some small companies that designed supercap UPSes years ago and my guess is they were jumping on patent filings and thinking prices would eventually fall.
Be a good place to put in filters and/or masking for side channels at power line.
Interesting. At one point I was strongly interested in making a ups that would use a minimal number of supercaps instead of a battery and just shut down a server within a minute or two. Thinking aloud, there’s also some opportunities in making the alert connection wireless (perhaps a PoE passthrough that talked IPMI and wirelessly back to the ups) or at least doing turn off via Bluetooth.
Laziness (and seeing a decent deal for a regular pure sine ups) eventually got me. The big hurdle I had in thinking in terms of avoiding a sla battery is that they’re cheap compared to supercaps. There were some small companies that designed supercap UPSes years ago and my guess is they were jumping on patent filings and thinking prices would eventually fall.
It will be interesting to see how this project develops - I would be interested in an open UPS unit.