Magnetic Induction Device
AssigneeAms Advanced Magnetic Solutions, Limited
InventorsZeev Shpiro, Alex Axelrod
Life of this patent
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Abstract
A magnetic induction device (MID) is described. The MID comprises at least one primary electrical winding, at least one secondary electrical winding, and an electrically-conductive cover (BCC) which is electrically connected to a local ground and at least partially surrounds, without forming a closed conductive loop, a core via which the at least one primary electrical winding and the at least one secondary electrical winding are magnetically coupled. Related apparatus and methods are also described.
Claims32
1-12. (canceled)
14-16. (canceled)
18-27. (canceled)
A magnetic induction device (MID) comprising:
- at least one primary electrical winding;
- at least one secondary electrical winding;
- and
- an electrically-conductive cover (ECC) at least partially surrounding, without forming a closed conductive loop, a core via which the at least one primary electrical winding and the at least one secondary electrical winding are magnetically coupled,
- wherein the ECC is electrically connected to a local ground by an electrical connection having a low impedance in a broad frequency range, the electrical connection enabling diversion of common-mode (CM) currents from the magnetic induction device to the local ground.
A magnetic induction device comprising:
- a primary electrical winding comprising a first ribbon cable in which each wire is electrically connected, at at least two locations, to each adjacent wire in the first ribbon cable so as to electrically connect in parallel all wires in the first ribbon cable;
- and
- a secondary electrical winding comprising a second ribbon cable in which each wire is electrically connected, at at least two locations, to each adjacent wire in the second ribbon cable so as to electrically connect in parallel all wires in the second ribbon cable.
An inductor comprising:
- an electrically-conductive cover (ECC) which is electrically connected to a local ground and at least partially surrounds a core without forming a closed conductive loop;
- and
- an electrical winding wound on the ECC.
A method of enhancing common-mode (CM) rejection in a magnetic induction device, the method comprising:
- providing at least one primary electrical winding, and at least one secondary electrical winding;
- at least partially surrounding a core via which the at least one primary electrical winding and the at least one secondary electrical winding are magnetically coupled, by an electrically-conductive cover (ECC) without forming a closed conductive loop;
- and
- electrically connecting the ECC to a local ground by an electrical connection having a low impedance in a broad frequency range, the electrical connection enabling diversion of CM currents from the magnetic induction device to the local ground.
A method of reducing leakage inductance in a magnetic induction device, the method comprising:
- providing a ribbon cable;
- electrically connecting each wire in the ribbon cable, at at least two locations, to each adjacent wire in the ribbon cable so as to electrically connect in parallel all wires in the ribbon cable;
- and
- wrapping the ribbon cable around a core of a magnetic induction device so as to produce an electrical winding of the magnetic induction device.
A method for reducing crosstalk between an inductor and nearby electronic components, the method comprising:
- at least partially surrounding a core by an electrically-conductive cover (ECC) without forming a closed conductive loop;
- winding an electrical winding on the ECC;
- and
- electrically connecting the ECC to a local ground by an electrical connection having a low impedance in a broad frequency range, the electrical connection enabling diversion of CM currents from the inductor to the local ground.
A magnetic induction device (MID) comprising:
- primary means for winding;
- secondary means for winding;
- and
- means for at least partially surrounding, without forming a closed conductive loop, a core via which the primary means for winding and the secondary means for winding are magnetically coupled,
- wherein the means for at least partially surrounding is electrically connected to a local ground by an electrical connection having a low impedance in a broad frequency range, the electrical connection enabling diversion of common-mode (CM) currents from the magnetic induction device to the local ground.
A magnetic induction device comprising:
- primary means for winding comprising a first ribbon cable in which each wire is electrically connected, at at least two locations, to each adjacent wire in is the first ribbon cable so as to electrically connect in parallel all wires in the first ribbon cable;
- and
- secondary means for winding comprising a second ribbon cable in which each wire is electrically connected, at at least two locations, to each adjacent wire in the second ribbon cable so as to electrically connect in parallel all wires in the second ribbon cable.
An inductor comprising:
- means for at least partially surrounding a core without forming a closed conductive loop, the means for at least partially surrounding being electrically connected to a local ground;
- and
- means for winding wound on the means for at least partially surrounding.
Dependencies are inferred from the claim text.