Precision inductive devices and methods
US7567163B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2005 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Aug 26, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2017/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A low cost, low profile, small size and high performance inductive device for use in, e.g., electronic circuits. In one exemplary embodiment, the device includes a ferrite core comprising multiple inductors and optimized for electrical and magnetic performance. Improvements in performance are obtained by, inter alia, control of the properties of the gap region(s) as well as placement of the windings relative to the gap. The magnetic path properties of the inductors at the ends of the device are also optionally controllable so as to provide precise matching of inductances. Optionally, the device is also self-leaded, thereby simplifying its installation and mating to a parent device (e.g., PCB). Methods for manufacturing and utilizing the device are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.