Les champs obligatoires sont indiqués avec Inscrivez-vous à notre lettre d'information et restez informé Download PDF Info Publication number EP2702674B1 ... Excitateur électronique destiné à une source de lumière qui comprend un circuit de correction de facteur de puissance selon la revendication 3 ou 4. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby sourceCircuit arrangements for emergency or stand-by power supply, e.g. Mais peu de personnes en connaissent la signification.

UPS systemsCircuit arrangements for emergency or stand-by power supply, e.g.

Il se situe toujours entre 0 et, idéalement, 1. by high-voltage dc using static converters with semiconductor devicesCircuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dcCircuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. for emergency lightingCircuit arrangements for emergency or stand-by power supply, e.g. Il se situe toujours entre 0 et, idéalement, 1. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stageCircuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. Plus la valeur est proche de 1, meilleure est la source lumineuse et plus elle est efficace. Procédé de correction de facteur de puissance dans lequel une tension d'entrée (VProcédé selon la revendication 1, qui comprend en outre, lorsque le contrôleur (24) identifie que la tension d'entrée (VCircuit de correction de facteur de puissance, qui comprendCircuit selon la revendication 3, dans lequel le contrôleur (24) est capable d'identifier que la tension d'entrée (VExcitateur électronique destiné à une source de lumière qui comprend un circuit de correction de facteur de puissance selon la revendication 3 ou 4.GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWERAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOFCircuits or arrangements for compensating for or adjusting power factor in converters or invertersArrangements for improving power factor of AC inputArrangements for improving power factor of AC input using a non-isolated boost converterGENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWERAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOFCircuits or arrangements for compensating for electromagnetic interference in converters or invertersGENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWERCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGYCircuit arrangements for emergency or stand-by power supply, e.g. by high-voltage dc using static converters with semiconductor devices by means of a single-switch converter or a parallel push-pull converter in the final stage using control circuits for the switching elementELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FORCircuit arrangements for operating light emitting diodes [LED]GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWERAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOFDetails of control, feedback and regulation circuitsGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTSTECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGECLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g.
Creusons donc un peu dans les connaissances physiques de base et découvrons ce que le facteur de puissance indique sur la qualité d’un produit LED.


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