Measuring current with IMC Hall effect technology: this Hall effect current sensor features an integrated magnetic concentrator (IMC) that allows it to measure current directly, without a ferrite core.(Sensor Technology and Design) From: Sensors Magazine | Date: November 1, 2003| Author: | COPYRIGHT 2003 Advanstar Communications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information) Copyright information

Hall effect sensors have been used to measure electric current for many years. Because of their relatively low sensitivity, conventional Hall sensors need magnetic circuits that serve to increase their cost, size, and weight. The Hall effect current sensor presented in this article features an integrated magnetic concentrator (IMC) that boosts its sensitivity enough to measure current directly, without a ferrite core.

Configuration and Operation

The IMC Hall effect sensor is fabricated by means of standard CMOS technology, with an additional ferromagnetic layer ...

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