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Image of ROHM Semiconductor Contactless Current Sensor - Slide5

Additionally, with the MI sensor, because the solution can be miniaturized to contain multiple sensors inside a single IC, ROHM uses a unique routing method to eliminate any external magnetic fields. As shown here, sensing the traces parallel to each other allows one to isolate the sensor fields emanating from only the current trace below the sensor. The main benefit of this is an easier design step and a reduction to BOM cost required for investing into an external shield for other solutions.

PTM Published on: 2020-06-23