Inductor assemblies and methods for forming the same
US11798731B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2021 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Jan 7, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2027/2857
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dual coil inductor assembly includes an inner coil assembly including an inner coil and first and second terminals, and an outer coil assembly including an outer coil and third and fourth terminals. The inner coil includes an inner metal foil, and an inner electrical insulator sheet spirally co-wound with the inner metal foil. The outer coil includes an outer metal foil, and an outer electrical insulator sheet spirally co-wound with the outer metal foil. The inner coil is disposed within an outer coil air core of the outer coil so that the outer coil circumferentially surrounds the inner coil. The first and second terminals are electrically connected to the inner metal foil at respective first and second locations spaced apart along the inner metal foil. The third and fourth terminals are electrically connected to the outer metal foil at respective third and fourth locations spaced apart along the outer metal foil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.