Variable capacitors including tandem movers/bimorphs and associated operating methods
US6400550B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2001 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | May 18, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB81B3/0056
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A variable capacitor is provided having first and second capacitor plates, a tandem mover and an actuator. The first and second capacitor plates are positioned such that the first and second capacitor plates face one another in a spaced apart relationship. The tandem mover is configured to move the first and second capacitor plates in tandem in response to changes in ambient temperature to maintain a consistent spaced apart relationship between the capacitor plates. The actuator is then configured to vary the spaced apart relationship between the first and second capacitor plates in response to an external input. The capacitance of the variable capacitor can therefore be varied by increasing and decreasing the spaced apart relationship between the first and second capacitor plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.