Method of fabricating a magnetic flux concentrating core
First Claim
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1. A method of fabricating a magnetic flux concentrating core, the method comprising the steps of:
- winding a strip of magnetic laminate material in a tape-wound configuration having a plurality of layers;
securing the layers together at a first point while leaving the layers unsecured at a second point spaced from the first point; and
removing magnetic laminate material at the first point to form a gap wherein the layers can be separated to permit flexing at the second point.
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Abstract
A current sensor operable over a selected operating frequency range includes a flux concentrating core. The core is fabricated by forming a series of tape-wound laminations into a desired closed shape, securing the laminations together at a point and removing material at the point to create a gap.
68 Citations
9 Claims
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1. A method of fabricating a magnetic flux concentrating core, the method comprising the steps of:
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winding a strip of magnetic laminate material in a tape-wound configuration having a plurality of layers; securing the layers together at a first point while leaving the layers unsecured at a second point spaced from the first point; and removing magnetic laminate material at the first point to form a gap wherein the layers can be separated to permit flexing at the second point. - View Dependent Claims (3)
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2. A method of fabricating a magnetic flux concentrating core, the method comprising the steps of:
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winding a strip of magnetic laminate material in a tape-wound configuration having a plurality of layers; securing the layers together at a point wherein the step of securing comprises the steps of wrapping an epoxy-impregnated fiber around the layers and curing the epoxy-impregnated fiber; and removing magnetic laminate material at the point to form a gap.
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4. A method of fabricating a magnetic flux concentrating core, the method comprising the steps of:
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winding a strip of magnetic laminate material in a tape-wound configuration having a plurality of layers; securing the layers together at a point; and removing magnetic laminate material at the point to form a gap, wherein the gap is defined by core ends separated by a gap width and further in combination with the steps of flexing the core to increase the gap width and inserting the core ends into a bobbin.
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5. A method of fabricating a magnetic flux concentrating core, the method comprising the steps of:
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winding a strip of magnetic laminate material to form a plurality of layers; securing the layers together at a first area adjacent a point while leaving the layers unsecured at a second area spaced from the point; and removing magnetic laminate material at the point to form a gap, wherein the layers can be separated at the second area to permit flexing at the second area.
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6. A method of fabricating a magnetic flux concentrating core, the method comprising the steps of:
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winding a strip of magnetic laminate material to form a plurality of layers; securing the layers together at an area adjacent a point, wherein the step of securing comprises the steps of wrapping an epoxy-impregnated fiber around the layers and curing the epoxy-impregnated fiber; and removing magnetic laminate material at the point to form a gap. - View Dependent Claims (7, 8, 9)
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Specification