In board filter inductor for switching power supply on a printed circuit board
US6677847B1 · kind B1 · utility
4Cited by
2References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 2002 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Aug 15, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49071
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inductor is formed by two traces on a multilayer PC board passing through a ferromagnetic “E” shaped core. The first trace is the positive output bus of the DC power supply, and the second trace is the negative output bus of the DC power supply. Sense lines used to sense voltage levels in the load are put through the same opening in the ferromagnetic “E” core as an output bus trace. The sense lines are traces in a level of the multilevel PC board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.