Patent ID: 11927607
Assignee: ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A current sensor, comprising:
a substrate comprising a first layer, a second layer, a third layer, and a fourth layer, wherein the substrate includes a path for at least one current-carrying conductor;
a first plurality of measurement conductors formed on the first layer;
a second plurality of measurement conductors formed on the second layer;
a third plurality of measurement conductors formed on the third layer;
a fourth plurality of measurement conductors formed on the fourth layer; and
a first plurality of vias formed in the substrate and arranged to connect respective ends of the first plurality of measurement conductors, the second plurality of measurement conductors, the third plurality of measurement conductors, and the fourth plurality of measurement conductors, so as to form a first current measurement coil which progresses around the path in a first circumferential direction and a second current measurement coil which progresses around the path in a second circumferential direction,
wherein each measurement conductor on the first layer is aligned with a respective measurement conductor on the second layer, the third layer, and the fourth layer, such that measurement conductors in the second layer, the third layer, and the fourth layer form a radial plane which is substantially perpendicular to a surface of the substrate.