@@ -4,7 +4,7 @@ This case enumerates the use cases driving the design of the UPSide UPS.
First, a boundary condition. A UPS has to deliver clean AC, not just DC; this is what distinguishes it from a power supply. This implies significant conversion losses in the pipeline from mains power to battery to inverter to UPS outlet, but that can't be avoided.
The practical reason for the unavoidability is large monitors. Until every monitor has a DC input jack with a standardized connector and input jack, keeping a desktop or server system up means powering one or more monitors via AC, as well as the host machine. A 4K monitor can draw as much as 150W, so this is not trivial.
The practical reason for the unavoidability is large monitors. Until every monitor has a DC input jack with a standardized connector and voltage, keeping a desktop or server system up means powering one or more monitors via AC, as well as the host machine. A 4K monitor can draw as much as 150W, so this is not trivial.
Another boundary condition is that UPSide cannot hope to met the dwell-time needs of large data centers with a nine-nines uptime requirement. These require huge custom or semi-custom installations involving tons of battery mass, with a set of tradeoffs very different from a consumer-grade or SOHO UPS.
