EP 0989785 A3 20000412 - Circuit improvement for low pressure discharge lamp
Title (en)
Circuit improvement for low pressure discharge lamp
Title (de)
Verbesserte Anlaufschaltung für Niederdruck-Entladungslampe
Title (fr)
Circuit amélioré pour lampe à décharge basse pression
Publication
Application
Priority
DE 19838830 A 19980826
Abstract (en)
[origin: US6163114A] In an operating circuit for a low-pressure discharge lamp, the lamp current is controlled depending on the lamp temperature or the luminous flux.
IPC 1-7
H05B 41/00; G05F 1/00; H01J 61/52; H05B 37/02; H05B 41/285; H05B 41/38
IPC 8 full level
H05B 41/18 (2006.01); G05F 1/00 (2006.01); H01J 61/52 (2006.01); H05B 37/02 (2006.01); H05B 41/00 (2006.01); H05B 41/285 (2006.01); H05B 41/36 (2006.01); H05B 41/38 (2006.01); H05B 41/39 (2006.01)
CPC (source: EP KR US)
H05B 41/36 (2013.01 - KR); H05B 41/386 (2013.01 - EP US); H05B 41/39 (2013.01 - EP US); Y10S 315/05 (2013.01 - EP US); Y10S 315/07 (2013.01 - EP US)
Citation (search report)
- [X] US 5404083 A 19950404 - NILSSEN OLE K [US]
- [X] US 5710489 A 19980120 - NILSSEN OLE K [US]
- [X] EP 0483082 A2 19920429 - MARELLI AUTRONICA [IT]
- [X] PATENT ABSTRACTS OF JAPAN vol. 1995, no. 01 28 February 1995 (1995-02-28)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6163114 A 20001219; AT E215297 T1 20020415; CA 2281439 A1 20000226; CA 2281439 C 20090519; CN 1246029 A 20000301; DE 19838830 A1 20000302; DE 59901049 D1 20020502; EP 0989785 A2 20000329; EP 0989785 A3 20000412; EP 0989785 B1 20020327; JP 2000068081 A 20000303; KR 100404524 B1 20031105; KR 20000017548 A 20000325; TW 454427 B 20010911
DOCDB simple family (application)
US 36290799 A 19990729; AT 99112640 T 19990702; CA 2281439 A 19990825; CN 99118152 A 19990826; DE 19838830 A 19980826; DE 59901049 T 19990702; EP 99112640 A 19990702; JP 23572299 A 19990823; KR 19990035551 A 19990826; TW 88114176 A 19990819