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US 2025/0182955 A1Published application
Low-leakage overmolded planar transformers for welding-type power supplies
AssigneeIllinois Tool Works Inc.
InventorDennis Sigl
Life of this patent
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Abstract
Disclosed example high-frequency transformers include: a primary winding; a first secondary winding comprising a first planar conductor and a molded insulator, the first secondary winding being stacked in contact with the primary winding; and a magnetic core that is magnetically coupled to the primary winding and the first secondary winding.
Claims20
A high-frequency transformer, comprising:
- a primary winding;
- a first secondary winding comprising a first planar conductor and a molded insulator, the first secondary winding being stacked in contact with the primary winding;
- and
- a magnetic core that is magnetically coupled to the primary winding and the first secondary winding.
1 more element
A welding-type power supply, comprising power conversion circuitry configured to convert input power to welding-type output power, the power conversion circuitry comprising:
- an input circuit configured to convert the input power to a first high-frequency signal;
- a high-frequency transformer configured to convert the first high-frequency signal to a second high-frequency signal, the high-frequency transformer comprising:
- a primary winding;
- a first secondary winding comprising a first stamped conductor and a molded insulator, the first secondary winding being stacked in contact with the primary winding;
- and
- a magnetic core that is magnetically coupled to the primary winding and the first secondary winding;
- and
- an output circuit configured to convert the second high-frequency signal to the welding-type output power.
5 more elements
Dependencies are inferred from the claim text.