Patent · US Expired

Apparatus and circuit for operating a discharge lamp of a motor vehicle at two power levels

US6411040B1 · kind B1 · utility

6Cited by

3References

21Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Bernhard Ertl · Puchheim, DE
Guenther Hirschmann · Munich, DE
Thomas Reiners · Giengen an der Brenz, DE

Key dates

Filing date	Mar 18, 1998
Grant date	Jun 25, 2002
Priority date	—
Expiry date	Mar 18, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH05B41/42
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An apparatus for operating a discharge lamp from an on-board voltage source of a motor vehicle. The discharge lamp is operated at a first electrical power to produce a taillight and is operated with a second, higher power to produce a signal light.

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