Multi-turn inductors

摘要

A multi-winding inductor includes a first foil winding and a second foil winding. One end of the first foil winding extends from a first side of the core and wraps under the core to form a solder tab under the core. One end of the second foil winding extends from a second side of the core and wraps under the core to form another solder tab under the core. Respective portions of each solder tab are laterally adjacent under the magnetic core. A coupled inductor includes a magnetic core including a first and a second end magnetic element and a plurality of connecting magnetic elements disposed between and connecting the first and second end magnetic elements. A respective first and second single turn foil winding is wound at least partially around each connecting magnetic element. Each foil winding has two ends forming respective solder tabs.

主权项

1. A power supply, comprising:
a printed circuit board; and an inductor, including:
a magnetic core having a first outer side, a second outer side opposite to the first outer side, and a bottom side between the first and second outer sides, the first outer side separated from the second outer side in a widthwise direction;a first winding wound around at least a portion of the magnetic core, a first end of the first winding wrapping around the first outer side of the magnetic core to form a first solder tab on the bottom side of the magnetic core, the first solder tab having an axis of elongation parallel to a lengthwise direction, the lengthwise direction being orthogonal to the widthwise direction; and a second winding wound around at least a portion of the magnetic core, a first end of the second winding wrapping around the second outer side of the magnetic core to form a second solder tab on the bottom side of the magnetic core, the second solder tab having an axis of elongation parallel to the lengthwise direction; and a trace of the printed circuit board electrically coupling the first and second solder tabs.