Does anyone know of a good method (or have any ideas) of how I could reduce line voltage down to low (DC) levels in order to measure the line voltage with an AD converter.
Using a transformer is obviously the easiest way and probably provides the least potential problems with safety agencies. But transformers are not (I don't think) terribly accurate and they are rather bulky even in this sort of application. What are the safety implications, for example, of just rectifying and filtering the voltage and running it through a voltage divider? Thanks, Max Kelson mkel...@es.com
