Hi,
I wonder if there exist simple current transformer solutions using hall effect devices instead of bulky wound coils. I need to measure current between 0 and 100amps flowing in 1-phase or 3-phase mains cables. The units should contain an A/D converter with output to a standard bus, like for example 1-wire etc..
Has anyone here heard about simple yet relatively accurate (+/- 3%) current sense devices / solutions with digital output..?
Thanks for comments and info
regards
Geir
something like that?
-- "I'm never wrong, once i thought i was, but was mistaken" Real Programmers Do things like this. http://webpages.charter.net/jamie_5
Sounds like what you want is a clamp test meter. They work to that sort of accuracy. They're priced from only a few dollars - but one with a data output bus will be more.
--
*Preserve wildlife - Go pickle a squirrel*
Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.
Check out F. W. Bell; they used to make Hall-based units good for up to a few hundred amps.
Isaac
Indeed some neat products. The OP request for a digital output may not be so immediately available but the following link points to an "easy to embed" solution for in-system use. The 0->5V output can easily be converted to a digital value by feeding the voltage into the A/D converter of your favorite microcontroller.
ciscodsl
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