25 Sep
2009
25 Sep
'09
2:11 p.m.
Christian Corti wrote:
The simplest solution: Buy a UPS and tell it to output
230V/50Hz...
All common inexpensive UPSes will not output a substantially different
voltage or frequency than the input, because they are really SPSes
(Standby Power Supply), and the load only runs on the inverter when the
mains power fails. A true UPS (also known as an "online UPS") that runs
the load on the inverter is much more expensive. Most of the price
difference is probably due to the much lower production volume of the
UPS, but it is the case that the AC-DC front end of an SPS will be less
expensive to manufacture since it only has to supply enough current to
charge the battery, not to simultaneously charge the battery and power
the load.
Eric