Method of fabricating a high-frequency transformer
US5134770A · kind A · utility
12Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1990 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Jun 4, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49073
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high-frequency transformer is constructed from a flexible circuit comprising a primary conductive film winding and one or more secondary conductive film windings disposed on a single dielectric membrane. The flexible circuit is folded to form a stack of primary winding layers interleaved with secondary winding layers and then inserted into a mangetic cup core. The flexible circuit is preferably patterned photolithographically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.