INDUCTIVE COMPONENT FOR USE IN AN INTEGRATED CIRCUIT, A TRANSFORMER AND AN INDUCTOR FORMED AS PART OF AN INTEGRATED CIRCUIT

摘要

Inductive components, such as transformers, can be improved by the inclusion of a magnetic core. However the benefit of having a core is lost if the core enters magnetic saturation. One way to avoid saturation is to provide a bigger core, but this is costly in the context of integrated electronic circuits. The inventor realized that the flux magnetic flux density varies with position in a magnetic core within an integrated circuit, causing parts of the magnetic core to saturate earlier than other parts. This reduces the ultimate performance of the magnetic core. This disclosure provides structures that delay the onset of early saturation, enabling a transformer to handle more power.

主权项

1. An inductive component for use in an integrated circuit, comprising:
a magnetic core; a plurality of conductors arranged on a first side of the magnetic core; a plurality of conductors arranged on a second side of the magnetic core; a plurality of conductive connections connecting selected one of the first plurality of conductors to selected ones of the second plurality of conductors of the second plurality so as to form a first coil, and a compensation structure for compensating for core saturation non-uniformity.