Auxiliary quartz lamp lighting system for high intensity discharge lamp ballasts
US7397194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2006 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Nov 15, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention comprises an auxiliary lamp controller and related circuits to operate an auxiliary lamp and circuit to light auxiliary lamps at 120 VAC and 50-60 Hz current connected to an electronic HID ballast operating at a frequency of 50-60 Hz to over 400 kHz and voltages of 120-277 VAC or connected to a magnetic HID ballast operating at 120-277 VAC and 50-60 Hz, as provided by a multitap transformer and related circuitry wherein the auxiliary lamp is illuminated during HID lamp phases of being extinguished from loss of power or other reasons, and during cool-down, start-up and warm-up phases of the HID lamp, and the auxiliary lamp is extinguished upon the HID lamp reaching full illumination phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.