Method and apparatus for the stabilization of direct current arc lamps
US4602193A · kind A · utility
3Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1984 |
| Grant date | Jul 22, 1986 |
| Priority date | — |
| Expiry date | Aug 10, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for stabilizing the arc in a DC arc lamp. An AC signal is superimposed on the DC power source of the lamp to cause small regular fluctuations in the arc. The small fluctuations prevent large fluctuations while the small regular fluctuations may be averaged to obtain a constant average value. The average is taken over 5 to 10 periods of the AC signal to produce a constant average signal with a very small standard deviation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.