EP 1051060 A1 20001108 - Electronic starting device for fluorescent discharge lamps and the like,having improved characteristics
Title (en)
Electronic starting device for fluorescent discharge lamps and the like,having improved characteristics
Title (de)
Elektronische Schaltung zum Zünden von Leuchtstofflampen und Ähnlichen,mit verbesserten Eigenschaften
Title (fr)
Circuit électronique de démarrage pour lampes fluorescentes et similaires, ayant des caractéristiques améliorées
Publication
Application
Priority
EP 99830279 A 19990507
Abstract (en)
An electronic starting device (1) for fluorescent discharge lamps, highpressure lamps and the like which is meant to be connected downstream of at least one discharge lamp (2) which is connected to the AC supply mains by means of a ballast (3), the particularity of which is the fact that it comprises a rectifier bridge (5) which is connected to first pins of the at least one lamp, a Zener diode (6) and a first resistor (7) which are series-connected to the rectifier bridge, and a circuit portion which is constituted by a first capacitor (8) and a second capacitor (11) to which a second resistor (9) and a third resistor (12) are respectively parallel-connected, a diac (13) which is series-connected to the second capacitor (11), and a third capacitor (14) to which a fourth resistor (15) is parallel-connected, switching means (10) being provided which are connected to the circuit portion and to the rectifier bridge, the switching means being connected to the diac (13) by means of a first terminal, to the first capacitor (8) by means of a second terminal and to the rectifier bridge (5) by means of a third terminal, the third capacitor (14) and the fourth resistor (15) being connected between the first terminal and the second terminal. <IMAGE>
IPC 1-7
IPC 8 full level
H05B 41/04 (2006.01)
CPC (source: EP)
H05B 41/046 (2013.01)
Citation (search report)
- [A] EP 0061796 A1 19821006 - PHILIPS NV [NL]
- [A] EP 0759685 A2 19970226 - LEE CHUNG WOO [KR]
- [A] DE 2122411 A1 19721130 - BBC BROWN BOVERI & CIE
- [A] FR 2138995 A1 19730105 - VOEGELI ERNST
- [A] GB 2201307 A 19880824 - MARTIN DAVID JOHN
- [A] EP 0249485 A1 19871216 - TEXAS INSTRUMENTS INC [US], et al
Designated contracting state (EPC)
AT BE CH DE ES FI FR GB GR IT LI
DOCDB simple family (publication)
DOCDB simple family (application)
EP 99830279 A 19990507