Patent · US Expired

Circuit arrangement having LC parallel tuned drive circuitry

US5925984A · kind A · utility

21Cited by

5References

21Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Klaus Fischer · Augsburg, DE
Harald Schmitt · Hersbruck, DE
Ludwig Reiser · Gersthofen, DE
Peter Haeussinger · Munich, DE
Walter Hirschmann · Munich, DE

Key dates

Filing date	Dec 12, 1996
Grant date	Jul 20, 1999
Priority date	—
Expiry date	Dec 12, 2016

Classification

Technology area (CPC H)Electricity
CPC primaryH05B41/2827
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a circuit arrangement for operating a lamp (EL), particular a low-pressure discharge lamp, with a load circuit which has at least one inductor (L2) and at least one capacitor (C7, C8, C9), and with an invertor which may be configured as a half-bridge arrangement with two switching elements (T1, T2), and with a drive circuit (AS) for driving the switching elements (T1, T2). The invention provides that the drive circuit (AS) has at least one LC parallel tuned circuit (L3C3, L4C4). The circuit arrangement according to the invention can be produced without separate cost-intensive wound parts.

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