Patent · US Expired

Circuit arrangement for operating discharge lamps

US6833678B2 · kind B2 · utility

4Cited by

6References

11Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Siegfried Mayer · Leinfelden, DE
Arwed Storm · Dachau, DE

Key dates

Filing date	Aug 25, 2003
Grant date	Dec 21, 2004
Priority date	—
Expiry date	Aug 25, 2023

Classification

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

Abstract

Circuit arrangement for operating discharge lamps (LP), having the following features: A power factor correction device (PFC) provides an intermediate circuit voltage; an inverter (INV), which draws its power from the intermediate circuit voltage, outputs power to discharge lamps (LP). According to the invention, an oscillation of the power factor correction device (PFC) only takes place when it is started, by means of a starting device (TRG), by an oscillation of the inverter (INV). This provides cost-effective control of the sequences in the circuit arrangement.

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