DRIVE CIRCUITS FOR ELECTRO-LUMINESCENT LAMPS

A drive circuit for delivering an AC voltage to an array of electro-luminescent lamps (8a to 8n) includes a single coil (1), the energy in which is transferred to each lamp through a corresponding switch assembly (10a to 10n) having positive and negative-going paths for conducting positive and negat...

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Bibliographische Detailangaben
Hauptverfasser:	VAN DEN BERG, ARJAN, VAN DER WERF, RONALD, SNEEP, JACOBUS, GOVERT
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADVERTISING ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS,e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USERAPPLICATIONS CRYPTOGRAPHY DISPLAY EDUCATION ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PHYSICS SEALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	A drive circuit for delivering an AC voltage to an array of electro-luminescent lamps (8a to 8n) includes a single coil (1), the energy in which is transferred to each lamp through a corresponding switch assembly (10a to 10n) having positive and negative-going paths for conducting positive and negative voltages to the corresponding lamp. The magnitudes of the voltages applied to the parallel-connected lamps are controllable so that the illumination levels of the lamps are individually adjustable.