EP 0800335 B1 20021127 - Circuit for operating electric lamps
Title (en)
Circuit for operating electric lamps
Title (de)
Schaltungsanordnung zum Betrieb elektrischer Lampen
Title (fr)
Circuit pour alimenter des lampes électriques
Publication
Application
Priority
DE 19613149 A 19960403
Abstract (en)
[origin: EP0800335A2] The circuit has a converter with two alternately switching converter transistors (Q1,Q2), first and second auxiliary transistors (T1,T2) in the control circuits for the first and second converter transistors respectively and a resonant load circuit connected to the converter output (M) and contg. at least one lamp (LP). The emitter or source resistance of the first and second converter transistor is a parallel circuit contg. at least one Ohmic resistor (R5,R7) and the control path of the first and second auxiliary transistor (T1,T2) respectively. The control inputs of both auxiliary transistors are connected to the output of a common control circuit (IC).
IPC 1-7
IPC 8 full level
H05B 41/282 (2006.01); H05B 41/292 (2006.01); H05B 41/38 (2006.01)
CPC (source: EP US)
H05B 41/2825 (2013.01 - EP US); Y10S 315/05 (2013.01 - EP US); Y10S 315/07 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0800335 A2 19971008; EP 0800335 A3 19990506; EP 0800335 B1 20021127; CA 2201537 A1 19971003; CA 2201537 C 20040914; DE 19613149 A1 19971009; DE 59708791 D1 20030109; US 5831396 A 19981103
DOCDB simple family (application)
EP 97104699 A 19970319; CA 2201537 A 19970402; DE 19613149 A 19960403; DE 59708791 T 19970319; US 82898397 A 19970331