Micro-electro-mechanical system (MEMS) and apparatus for generating power responsive to mechanical vibration
US7501726B1 · kind B1 · utility
16Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2004 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Nov 12, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A micro-electro-mechanical system (MEMS) power generator employing a plurality of magnetic masses disposed to oscillate on spring elements in a manner that produces an unusually steep flux gradient at one or more conductive coils, thereby harvesting a substantial portion of the available mechanical energy. The energy from ambient mechanical vibration is harvested to produce electrical power sufficient to power individual electronic elements for a variety of low-cost and high-performance distributed sensor systems for medical, automotive, manufacturing, robotics, and household applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.