EP 0123963 A3 19850529 - CIRCUIT ARRANGEMENT FOR CONTROLLING THE INTENSITY OF THE LIGHT OF FLUORESCENT LAMPS
Title (en)
CIRCUIT ARRANGEMENT FOR CONTROLLING THE INTENSITY OF THE LIGHT OF FLUORESCENT LAMPS
Publication
Application
Priority
DE 3315793 A 19830430
Abstract (en)
[origin: EP0123963A2] In order also to be able to control the brightness of fluorescent lamps with an increased ignition voltage (e.g. lamps with a 26 mm diameter) using a conventional dimmer circuit, the additional arrangement of an ignition unit (6) is proposed which supplies ignition pulses which are synchronised to the rise of the chopped alternating voltage. The ignition device (6) is connected on the input side to the outputs of a dimmer (1) and on the output side to the electrodes (9) of a fluorescent lamp (7). <IMAGE>
IPC 1-7
IPC 8 full level
H05B 41/392 (2006.01)
CPC (source: EP)
H05B 41/3924 (2013.01)
Citation (search report)
- US 4286196 A 19810825 - AUER WILLIAM F
- US 3875458 A 19750401 - KAPPENHAGEN GEORGE A
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0123963 A2 19841107; EP 0123963 A3 19850529; DE 3315793 A1 19841031; DE 3315793 C2 19920130; FI 841690 A0 19840427; FI 841690 A 19841031; NO 841699 L 19841031
DOCDB simple family (application)
EP 84103836 A 19840406; DE 3315793 A 19830430; FI 841690 A 19840427; NO 841699 A 19840427