http://www.allegromicro.com/techpub2/techpub2.htm#B
Check the 27702 notes.
RobD
Cool site [ Parent ]
thanks for that pointer, it is a very interesting document. I need to digest it and work out if what I am doing is feasible. Part of the problem is the dynaic range of what I want to measure. Most of the time it will be perhaps 5 - 10 amp, then when the heavy loads are on it might be 100 - 12- amps , and when I switch in my arc welder 200 - 300 amps :) Don't do that often! But good info thanks.
Cheers Geoff [ Parent ]
Another chip you might want to check out is the Zetex ZXCT1009. This is a current sensor. I use it for low to medium current sensing in SMPS circuits but it should work in your app. Mouser sell them at low cost.[ Parent ]
