Patent · US Expired

Operating method for a discharge lamp having at least one dielectrically impeded electrode

US6388391B2 · kind B2 · utility

1Cited by

1References

4Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Gerwin Thiel · Munich, DE
Simon Jerebic · Regensburg, DE

Key dates

Filing date	Jan 22, 2001
Grant date	May 14, 2002
Priority date	—
Expiry date	Jan 22, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02B20/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for operating a discharge lamp, which has at least one dielectrically impeded electrode (2, 3), on a flyback converter, which applies periodically recurring voltage pulses to the discharge lamp (La1). If the discharge lamp (La1) has a starting aid (10), the voltage amplitude (US) of the voltage pulses is successively raised until a dielectrically impeded discharge is formed in the discharge lamp, and until the voltage amplitude (US) has reached the nominal operating voltage. If the discharge lamp (La1) has no starting aid, a first discharge which causes a partial ionization of the discharge medium is firstly ignited in the discharge lamp (La1). Immediately after the first discharge has been brought back to extinction, a dielectrically impeded discharge is ignited anew, and the voltage amplitude (US) of the voltage pulses is increased until the nominal operating voltage of the discharge lamp (La1) is reached.

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