High coulombic switch gas discharge device
US6049174A · kind A · utility
5Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 1997 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Aug 4, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J17/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device suitable for switching large currents includes, within a gas filled envelope, an anode, electrodes and a thermionic cathode. Initially the device holds off a voltage until a triggering pulse is applied to an electrode. This cause an electron current to be established between the thermionic cathode and the anode. When the current reaches a sufficiently large value further conduction through the device occurs via current drawn from the surface of the electrode in a cold cathode mode, bypassing the cathode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.