EP 0082253 A3 19840111 - CIRCUIT ARRANGEMENT FOR A DISCHARGE LAMP
Title (en)
CIRCUIT ARRANGEMENT FOR A DISCHARGE LAMP
Publication
Application
Priority
DE 3149993 A 19811217
Abstract (en)
[origin: EP0082253A2] 1. Circuit arrangement for a discharge lamp which, in power-system operation, can be operated via a ballast from an alternating-voltage supply system and, in emergency power operation, can be supplied from a battery via an inverter, characterized in that a coil with a ferrite core (2) is arranged in series with the ballast (5), which coil is designed by means of its winding in such a manner that it operates in its saturation region during operation with low-frequency power-system current and in the linear region of its magnetization curve during operation with higher-frequency emergency power.
IPC 1-7
IPC 8 full level
H05B 41/16 (2006.01)
CPC (source: EP)
H05B 41/16 (2013.01)
Citation (search report)
- US 3599037 A 19710810 - GRACE ROBERT E
- [AD] C.H. STURM "Vorschaltgerate und Schaltungen fur Niederspannungs--Entladungslampen", 5th Edition, 1974, VERLAG W. GIRARDET, Essen, Brown, Boverie & CIE. AG. Mannheim Seiten 160,164,338,554
Designated contracting state (EPC)
CH FR GB IT LI NL
DOCDB simple family (publication)
EP 0082253 A2 19830629; EP 0082253 A3 19840111; EP 0082253 B1 19860806; DE 3149993 A1 19830630; DE 3149993 C2 19881013; NO 158910 B 19880801; NO 158910 C 19881109; NO 824241 L 19830620
DOCDB simple family (application)
EP 82108720 A 19820921; DE 3149993 A 19811217; NO 824241 A 19821216