Apparatus for a crater-style capacitor for high-voltage
US6081415A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1998 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Oct 28, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49165
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to an apparatus for a crater-style sampling capacitor. The apparatus includes a dielectric having a smooth crater shaped input electrode on a first surface and output and guard electrodes on a second surface. A sampling capacitor is defined by the input and output electrodes, and a guard capacitor is defined by the input and guard electrodes. The edge of input electrode is positioned below the first surface to increase surface flash over voltage, further, the input electrode is curved to eliminate corona discharge at edges of the input electrode and to reduce self-heating to negligible levels. The apparatus is suitable for high-voltage radio-frequency applications, such as a mass spectrometer, or other high-voltage applications that require an accurate sampling capacitor for amplitude control and accurate sampling of radio-frequency waveforms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.