SWITCHING POWER SUPPLY AND ELECTRONIC DEVICE
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United States of America
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Issued Date -
Jan 30, 2025
app pub date -
Jul 28, 2023
filing date -
Jul 28, 2023
priority date (Note) -
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Abstract
A switching power supply and an electronic device includes a transformer, which includes a frame and a multi-layer winding structure arranged on the frame, different winding units are distributed at intervals along a target direction; at least one winding unit includes a first winding of the primary side of the transformer; at least one winding unit includes a second winding of the secondary side of the transformer; at least one winding unit includes a shielding winding; at least one group of shielding windings and the first winding are wound in parallel in the same layer, and/or: at least one group of shielding windings are distributed between the first winding and the second winding; the shielding winding is located on the primary side of the transformer; at least one end of the shielding winding is connected to an oscillation reduction unit for eliminating or weakening oscillation.
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