Planar transformer
AssigneeNucleus Ecopower Limited
InventorsRonald Kevin Fricker, Marthinus Christoffel Smit, Herman Allison
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Abstract
This invention relates to a planar transformer which includes a primary winding and a secondary winding defined by a first stage including at least one track on a first layer and at least one track on a second layer. These in combination provide a first output voltage. The transformer also includes a second stage which includes at least one track on the first layer and at least one track on the second layer which in combination provide a second output voltage. Furthermore, the ratio of the maximum cumulative current in the first and second stages is equal to half of the ratio of the track widths of the first and second stages. The invention extends to a method of enhancing electrical or physical characteristics of a planar transformer.
Claims9
A planar transformer which includes
- a primary winding;
- and
- a secondary winding defined by a first stage including at least one track on a first layer and at least one track on a second layer which in combination provide a first output voltage, and a second stage including at least one track on the first layer and at least one track on the second layer which in combination provide a second output voltage, wherein the ratio of maximum cumulative current in the first and second stages is equal to half of the ratio of the track widths of the first and second stages.
A method of enhancing electrical or physical characteristics of a planar transformer, the method including
- designing a primary winding which is capable of inducing a preselected minimum voltage in a secondary winding of the transformer;
- and
- designing a secondary winding so that it includes a first stage including a first track on a first layer and a second track on a second layer which in combination provide a first output voltage, and a second stage including a third track and fourth track on the first layer and a fifth track and sixth track on the second layer which in combination provide a second output voltage, wherein the ratio of maximum cumulative current in the first and second stages is equal to half of the ratio of the track widths of the first and second stages.
Dependencies are inferred from the claim text.