Patent · US Expired

Driver circuit for an HID lamp and method for operating an HID lamp

US7586266B2 · kind B2 · utility

2Cited by

8References

8Claims

0Family size

Assignee

OSRAM Gesellschaft mit beschraenkter Haftung · DE

Inventors

Christian Breuer · Newburyport, US
Andreas Huber · Holzgerlingen, DE
Simon Lankes · Falkensee, DE
Alwin Veser · Hallbergmoos, DE

Key dates

Filing date	Jul 11, 2005
Grant date	Sep 8, 2009
Priority date	—
Expiry date	Jan 3, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S315/05
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The present invention relates to a driver circuit for an HID lamp having a circuit arrangement for applying a radiofrequency signal for the purpose of starting the lamp and for applying a low-frequency signal for the purpose of operating the lamp after starting, the driver circuit being designed to drive the HID lamp, immediately after starting, using a radiofrequency signal for a period of time, the period of time being variable and depending on at least one operating parameter for the lamp which is set after starting. It also relates to a corresponding method for operating an HID lamp.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.