Orthogonal-field electrically variable magnetic device
First Claim
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1. An electro-magnetic device comprising:
- a low-profile magnetically permeable substrate;
a first set of windings, magnetically coupled to the substrate having a first resultant force with respect to an alternating current input signal; and
,a second set of windings, magnetically coupled to the substrate, having a second resultant force with respect to a direct current input signal that is orthogonal in direction to the first resultant force;
wherein the orthogonal resultant forces alters the permeability of the device, extending its operating range prior to saturation.
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Abstract
An electro-magnetic device for use in applications requiring low-profile components. The device includes a magnetic substrate with a scheme of through-holes in association with a first and second winding, plated or wired, integral to the substrate and wound orthogonal to each other. The first winding comprises the AC inductor/transformer permeability. The second winding in association with an applied DC bias current causes the permeability to vary over a wide controlled operating range.
90 Citations
16 Claims
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1. An electro-magnetic device comprising:
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a low-profile magnetically permeable substrate; a first set of windings, magnetically coupled to the substrate having a first resultant force with respect to an alternating current input signal; and
,a second set of windings, magnetically coupled to the substrate, having a second resultant force with respect to a direct current input signal that is orthogonal in direction to the first resultant force; wherein the orthogonal resultant forces alters the permeability of the device, extending its operating range prior to saturation. - View Dependent Claims (2, 3, 4, 5)
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6. An electro-magnetic device comprising:
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a low-profile magnetically permeable substrate; a first set of windings, magnetically coupled to the substrate having a first resultant force with respect to an alternating current input signal; a second set of windings, magnetically coupled to the substrate, having a second resultant force with respect to a direct current input signal that is orthogonal in direction to the first resultant force; and a magnet of predetermined polarity coupled to or in close proximity to the substrate, said magnet also producing resultant forces orthogonal to the first resultant force; wherein the orthogonal resultant forces alters the permeability of the device, extending its operating range prior to saturation. - View Dependent Claims (7, 8, 9, 10, 11)
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12. An electro-magnetic device comprising:
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a low-profile magnetically permeable substrate; a first set of windings, magnetically coupled to the substrate having a first resultant force with respect to an alternating current input signal; and
,a magnet of predetermined polarity coupled to or in close proximity to the substrate, having a second resultant force with respect to a direct current input signal that is orthogonal in direction to the first resultant force; wherein the orthogonal resultant forces alters the permeability of the device, extending its operating range prior to saturation. - View Dependent Claims (13, 14, 15, 16)
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Specification