Transformer and switch-mode power supply
US12046409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2017 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Sep 19, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/361
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transformer and a switch-mode power supply are provided. The transformer includes: a magnetic core structure; several windings that surround a same magnetic cylinder in the magnetic core structure in a stacked manner, where the several windings include at least one primary-side winding and at least one secondary-side winding; and an electromagnetic shielding layer that is disposed between at least two adjacent windings, where the two adjacent windings are a primary-side winding and a secondary-side winding, and the electromagnetic shielding layer is made of a magnetic material. The electromagnetic shielding layer of the transformer can suppress a noise current of the winding, to reduce noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.