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US 2021/0376822 A1Published application
Galvanically Isolated Driver Package for Switch Drive Circuit with Power Transfer
AssigneeHeyday Integrated Circuits SAS
InventorsAndrew Thompson, Joe Duigan, Karl Rinne
Life of this patent
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Abstract
The present application provides a packaged gate drive circuit having a transformer. The transformer which is used to transfer both signals and power from a primary side to a secondary side. The windings of the transformer are formed using a combination of tracks and wirebond wires. The transformer is positioned in a well formed using a first insulating material and covered with a second insulating material.
Claims20
An isolated gate drive comprising:
- a transformer having a core, a primary winding and a secondary winding;
- a substrate having a first major surface and a second major surface opposing the first major surface;
- a first insulating material provided on said substrate, the first insulating material in combination with the first major surface of the substrate defining a well wherein the core is positioned within the well and one or both of the primary and secondary windings are partially formed by one or more wirebond wires bonded to landing zones on the first major surface.
A method for manufacturing an isolated gate drive comprising a transformer comprising:
- providing a substrate with landing zones on a first major surface in a well region;
- providing insulation material on the first major surface of the substrate about the well region to define a well with the first major surface;
- attaching a core of the transformer to the substrate in the well;
- attaching wirebond wires to the landing zones on the first major surface of the substrate to partially define windings around the transformer, applying a second insulation material to cover the core and wirebond wires.
1 more element
Dependencies are inferred from the claim text.