EP 2382847 B1 20181017 - METHOD AND ELECTRONIC POWER SUPPLY FOR OPERATING A GAS DISCHARGE LAMP AND A PROJECTOR
Title (en)
METHOD AND ELECTRONIC POWER SUPPLY FOR OPERATING A GAS DISCHARGE LAMP AND A PROJECTOR
Title (de)
VERFAHREN UND ELEKTRONISCHES BETRIEBSGERÄT ZUM BETREIBEN EINER GASENTLADUNGSLAMPE SOWIE PROJEKTOR
Title (fr)
METHODE ET ALIMENTATION ELECTRONIQUE POUR UN LAMPE A DESCHARGE ET PROJECTEUR
Publication
Application
Priority
- EP 2010050311 W 20100113
- DE 102009006338 A 20090127
Abstract (en)
[origin: WO2010086222A1] The invention relates to a method for operating a gas discharge lamp having a gas discharge lamp burner and a first and a second electrode, wherein the electrodes have a nominal electrode spacing in the gas discharge lamp burner before the first operation thereof which is correlated with the lamp voltage, comprising the following steps: a) inspecting whether an off time (OT) corresponding to the duration between two direct voltage phases has expired, b) if the off time (OT) has expired, creating direct voltage phases or creating pseudo commutations for a predetermined period of time (VT) dependent on the lamp voltage, in such a way that a period of time of omitting commutations is predetermined for every lamp voltage. The invention likewise relates to an electronic operating device that performs the method according to the invention. The invention further relates to a projector having an electronic operating device, wherein the projector is designed to project an image during performance of the method without the performance of the method being viewable in the image.
IPC 8 full level
H05B 41/292 (2006.01)
CPC (source: EP US)
H05B 41/2928 (2013.01 - EP US)
Citation (examination)
- EP 1309228 A2 20030507 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- WO 2009007914 A1 20090115 - PHILIPS INTELLECTUAL PROPERTY [DE], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2010086222 A1 20100805; CA 2750669 A1 20100805; CN 102301828 A 20111228; CN 102301828 B 20150318; DE 102009006338 A1 20100930; DE 102009006338 B4 20180628; EP 2382847 A1 20111102; EP 2382847 B1 20181017; JP 2012516010 A 20120712; US 2011317133 A1 20111229; US 8602566 B2 20131210
DOCDB simple family (application)
EP 2010050311 W 20100113; CA 2750669 A 20100113; CN 201080005738 A 20100113; DE 102009006338 A 20090127; EP 10704109 A 20100113; JP 2011546747 A 20100113; US 201013146412 A 20100113