Patent ID: 7714588
Filing Date: 2010-05-11
Classification: G01R,H01F

Abstract:
1. A current sensor for measuring an electrical current on an electrical circuit having an electrical conductor, said current sensor comprising: a ring-shaped magnetic structure for receiving said electrical conductor, wherein an interior diameter of said ring-shaped magnetic structure is substantially equal to a diameter of said electrical conductor; a magnetic flux sensor for sensing a magnetic flux generated in said magnetic structure by a current flowing in said electrical conductor and for providing a signal representative of said current; said ring-shaped magnetic structure comprising an opening for receiving said magnetic flux sensor; an analog to digital converter for acquiring said signal from said magnetic flux sensor and converting said signal into a digital sensor data; a processor for receiving said digital sensor data, detecting an electrical disturbance on said current and providing electrical disturbance data; a printed circuit board having said magnetic flux sensor, said analog to digital converter and said processor supported on a surface thereof with electrical connections soldered thereto such that said printed circuit board electrically interconnects said magnetic flux sensor, said analog to digital converter and said processor; and a casing encapsulating therein said ring-shaped magnetic structure and said printed circuit board with said magnetic flux sensor said analog to digital converter and said processor, said casing having an input hole throughout for passing said electrical conductor therethrough and through said ring-shaped magnetic structure such that said current sensor is positionable an here along said electrical conductor.