EP 0824848 A1 19980225 - OUTPUT CONTROL SYSTEM FOR AN A.C. HIGH-PRESSURE GAS-DISCHARGE LAMP INTENDED IN PARTICULAR FOR MOTOR VEHICLES
Title (en)
OUTPUT CONTROL SYSTEM FOR AN A.C. HIGH-PRESSURE GAS-DISCHARGE LAMP INTENDED IN PARTICULAR FOR MOTOR VEHICLES
Title (de)
LEISTUNGSSTEUERUNG EINER MIT WECHSELSTROM BETRIEBENEN HOCHDRUCKGASENTLADUNGSLAMPE, INSBESONDERE FÜR KRAFTFAHRZEUGE
Title (fr)
SYSTEME DE REGULATION DE PUISSANCE D'UNE LAMPE A DECHARGE A HAUTE PRESSION A COURANT ALTERNATIF, NOTAMMENT POUR DES VEHICULES A MOTEUR
Publication
Application
Priority
- DE 9700421 W 19970305
- DE 19608655 A 19960306
Abstract (en)
[origin: DE19608655A1] The output control system for an a.c. high-pressure gas-discharge lamp intended in particular for a motor vehicle contains a bridge circuit in which two controlled switching transistors provided in at least one branch and in which the high-pressure gas-discharge lamp is supplied with ignition or arcing power via the bridge branch of the bridge circuit. It is proposed that the switching transistors should switch the current in the form of pulse packets each of which should contain a specific number of high-frequency pulses; switching should be carried out with minimum waste during current zero crossing; and regulation should be made to ensure that a defined output of the high-pressure gas-discharge lamp is maintained by a continuous averaging process over a predetermined interval (44, 45) of the supplied output packet.
IPC 1-7
IPC 8 full level
H05B 41/24 (2006.01); H05B 41/282 (2006.01); H05B 41/392 (2006.01)
CPC (source: EP US)
H05B 41/3927 (2013.01 - EP US); Y10S 315/02 (2013.01 - EP US); Y10S 315/07 (2013.01 - EP US)
Citation (search report)
See references of WO 9733453A1
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
DE 19608655 A1 19970911; DE 59704229 D1 20010913; EP 0824848 A1 19980225; EP 0824848 B1 20010808; ES 2161454 T3 20011201; JP H11504759 A 19990427; US 5945787 A 19990831; WO 9733453 A1 19970912
DOCDB simple family (application)
DE 19608655 A 19960306; DE 59704229 T 19970305; DE 9700421 W 19970305; EP 97916327 A 19970305; ES 97916327 T 19970305; JP 53134797 A 19970305; US 95216997 A 19971106