Method for making magnetic components with M-phase coupling, and related inductor structures

摘要

An M phase coupled inductor includes a magnetic core including a first end magnetic element, a second end magnetic element, and M legs disposed between and connecting the first and second end magnetic elements. M is an integer greater than one. The coupled inductor further includes M windings, where each winding has a substantially rectangular cross section. Each one of the M windings is at least partially wound about a respective leg.

主权项

1. A coupled inductor, comprising:
a ladder magnetic core having length and width, the ladder magnetic core including first and second rails and N rungs, N being an integer greater than one, the first and second rails extending the lengthwise direction and the N rungs joining the first and second rails in the widthwise direction, a separation distance between adjacent rungs in the lengthwise direction being greater than a separation distance between the first and second rails in the widthwise direction; and N windings, each of the N windings wound at least partially around a respective one of the N rungs; the N windings non-overlapping along the length and the width of the ladder magnetic core, as seen when looking cross-sectionally in the widthwise direction.