Sensors
First Claim
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1. A current sensor, comprising:
- one or more coil stacks; and
one or more soft magnetic elements each comprising soft magnetic material,wherein the one or more coil stacks and the one or more soft magnetic elements are connected together to form a closed loop that encompasses a sensing volume;
wherein at least one of the one or more coil stacks comprises a first coil stack comprising plural coils lying on a longitudinal axis of the first coil stack, wherein;
each coil comprises one or more turns printed on at least one planar surface of a respective substrate, andthe planes of the coils are parallel to one another and are perpendicular to the longitudinal axis of the first coil stack;
wherein a first one of the one or more soft magnetic elements has a first planar face of the first coil stack and arranged perpendicularly to and intersected by the longitudinal axis of the first coil stack; and
wherein said first one of the one or more soft magnetic elements or another one of the soft magnetic elements has a second planar face located at a second end of the first coil stack and arranged perpendicularly to and intersected by the longitudinal axis of the first coil stack.
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Abstract
A current sensor comprises a first component comprising plural coils. Each coil comprises one or more turns printed on at least one planar surface of a respective substrate, and the planes of the coils are parallel to one another and are perpendicular to a longitudinal axis of the first component. A second component comprises soft magnetic material and has first and second planar faces that are at opposite ends of the first component and are arranged perpendicularly to and are intersected by the longitudinal axis of the first component.
16 Citations
20 Claims
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1. A current sensor, comprising:
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one or more coil stacks; and one or more soft magnetic elements each comprising soft magnetic material, wherein the one or more coil stacks and the one or more soft magnetic elements are connected together to form a closed loop that encompasses a sensing volume; wherein at least one of the one or more coil stacks comprises a first coil stack comprising plural coils lying on a longitudinal axis of the first coil stack, wherein; each coil comprises one or more turns printed on at least one planar surface of a respective substrate, and the planes of the coils are parallel to one another and are perpendicular to the longitudinal axis of the first coil stack; wherein a first one of the one or more soft magnetic elements has a first planar face of the first coil stack and arranged perpendicularly to and intersected by the longitudinal axis of the first coil stack; and wherein said first one of the one or more soft magnetic elements or another one of the soft magnetic elements has a second planar face located at a second end of the first coil stack and arranged perpendicularly to and intersected by the longitudinal axis of the first coil stack. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A current sensor, comprising:
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first and second coil stacks; and first and second soft magnetic elements each comprising soft magnetic material, wherein the first and second coil stacks and the first and second soft magnetic elements are connected together to form a closed loop that encompasses a sensing volume; wherein each of the first and second coil stacks comprises plural coils lying on a longitudinal axis of the respective coil stack, wherein; each coil comprises one or more turns printed on at least one planar surface of a respective substrate, and the planes of the coils are parallel to one another and are perpendicular to the longitudinal axis of the respective coil stack; wherein the first soft magnetic element has; a first planar face located at a first end of the first coil stack and arranged perpendicularly to and intersected by the longitudinal axis of the first coil stack, and a third planar face arranged perpendicularly to and intersected by the longitudinal axis of the second coil stack, and wherein the second magnetic element has; a second planar face located at a second end of the first coil stack and arranged perpendicularly to and intersected by the longitudinal axis of the first coil stack, and a fourth planar face arranged perpendicularly to and intersected by the longitudinal axis of the second coil stack.
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Specification