Marechiare ha scritto:
> It is not unusual that the trade-off for a transformer is that the
> secondary voltage drops 20% or even more under the full load. If this
> is the case, it may cause some difficulty to "measure 220V mains
> voltage with some coarse accuracy, say 1-2%" using the available
> secondary output.


No, this transformer is dedicated to this aim - measuring.
(it was taken into account :) - circuitry is powered by a couple of 
Traco AC-DC and DC-DC modules)

-- 

Ciao, Dario
--
Cyberdyne
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist