On Sat, 3 Sep 2005, Matthew Miller wrote: > Hi everyone, > > In my thread last week Peter posted a schematic for a virtual shunt current > measurement circuit. I wanted to know more about this type of circuit, but > search on "virtual shunt" combined with someother terms turned up no good > links. Could this type of circuit have a different common name? The virtual shunt name is just a name. The circuit uses the property of any opamp circuit with negative feedback, to zero the voltage between its + and - inputs. Any basic opamp text will explain this at some length. Peter -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist