EP 0965252 B1 20020529 - ELECTRONIC BALLAST
Title (en)
ELECTRONIC BALLAST
Title (de)
ELEKTRONISCHES VORSCHALTGERÄT
Title (fr)
BALLAST ELECTRONIQUE
Publication
Application
Priority
- DE 19708784 A 19970304
- DE 19757295 A 19971222
- EP 9800879 W 19980216
Abstract (en)
[origin: WO9839951A1] The invention relates to an electronic ballast (EVG) operating at least one lamp (10), wherein a light sensor (20) for monitoring the brightness of a specific physical area (28) can be connected to said ballast. A control device (12) controls or adjusts the brightness of the lamp (10) according to the actual brightness value provided by the light sensor (20) and automatically recognizes whether the light sensor (20) is connected to the connection device (18a, 18b) when the electronic ballast is operated. If no light sensor (20) is connected, the brightness of the lamp (10) is controlled or adjusted according to externally supplied control data (Iextern).
IPC 1-7
IPC 8 full level
H05B 39/04 (2006.01); H05B 41/36 (2006.01); H05B 41/392 (2006.01)
CPC (source: EP)
H05B 39/042 (2013.01); H05B 41/36 (2013.01); H05B 41/3922 (2013.01)
Designated contracting state (EPC)
AT CH DE ES FI FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9839951 A1 19980911; AT E218268 T1 20020615; AU 6720398 A 19980922; AU 722238 B2 20000727; BR 9808163 A 20000516; BR 9808163 B1 20110208; DE 29724657 U1 20020905; EP 0965252 A1 19991222; EP 0965252 B1 20020529
DOCDB simple family (application)
EP 9800879 W 19980216; AT 98912314 T 19980216; AU 6720398 A 19980216; BR 9808163 A 19980216; DE 29724657 U 19971222; EP 98912314 A 19980216