Printed circuit board integrated resonance capability for planar transformers
AssigneeRaytheon Company
InventorSara Lorene Simbeck
Life of this patent
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Abstract
A planar transformer comprising a printed circuit board; a primary planar winding disposed within the printed circuit board; a secondary planar winding disposed within the printed circuit board; a magnetic material disposed within the printed circuit board between the primary planar winding and the secondary planar winding, the magnetic material configured to generate a secondary magnetic flux path; and a magnetic core disposed around and through the printed circuit board and magnetically coupled to the primary planar winding and the secondary planar winding, the magnetic core configured to generate a primary magnetic flux path.
Claims18
A planar transformer comprising:
- a printed circuit board having a first layer and a second layer proximate the first layer;
- a first planar winding disposed within said first layer of the printed circuit board;
- a second planar winding disposed within said second layer of the printed circuit board;
- a magnetic material disposed unitary and integral within said printed circuit board material, wherein the magnetic material comprises magnetic thermoplastic laminate material;
- and
- a magnetic core disposed over and through the printed circuit board and magnetically coupled to the first planar winding and the second planar winding.
A planar transformer comprising:
- a printed circuit board;
- a primary planar winding disposed within said printed circuit board;
- a secondary planar winding disposed within said printed circuit board;
- a magnetic material disposed within interspersed throughout material of said printed circuit board, wherein the magnetic material comprises a low loss, high resistivity ceramic filler thermoplastic matrix material, said magnetic material configured to generate a secondary magnetic flux path;
- and
- a magnetic core disposed around and through the printed circuit board and magnetically coupled to the primary planar winding and the secondary planar winding, said magnetic core configured to generate a primary magnetic flux path.
A process to increase a leakage inductance in a planar transformer comprising:
- a printed circuit board;
- disposing a primary planar winding within said printed circuit board;
- disposing a secondary planar winding within said printed circuit board proximate said primary planar winding;
- disposing a magnetic material within said printed circuit board between said primary planar winding and said secondary planar winding;
- generating a secondary magnetic flux path with said magnetic material;
- disposing a magnetic core around and through the printed circuit board;
- magnetically coupling said magnetic core to the primary planar winding and the secondary planar winding;
- generating a primary magnetic flux path with said magnetic core;
- and
- increasing the leakage inductance in the planar transformer.
Dependencies are inferred from the claim text.