Low power loss Mn-Zn ferrites
US5143638A · kind A · utility
3Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1991 |
| Grant date | Sep 1, 1992 |
| Priority date | — |
| Expiry date | Feb 28, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/2658
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A low power loss Mn-Zn ferrite consists essentially of Fe.sub.2 O.sub.3, MnO and ZnO at a given mole ratio and contains given amounts of SiO.sub.2, CaO, niobium oxide and titanium oxide or antimony oxide as trace additives. This ferrite is suitable as a transformer material for switched mode power supply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.