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TRIDONIC GMBH & CO. KG.

TRIDONIC GMBH & CO. KG. Patent applications
Patent application numberTitlePublished
20120133285METHOD AND CIRCUIT FOR POWER FACTOR CORRECTION - A method and circuit for correcting a power factor in an alternating current/direct current power transformer. The circuit has an inductance fed by a rectified AC voltage, and a switch by which the inductance can be charged and discharged by closing and opening the switch, and further has a diode by which the discharge current of the inductance is fed to the output of the circuit. During the discharge phase, a voltage V05-31-2012
20110241569Adaptive Pfc For A Lighting Means Load Circuit, In Particular For A Load Circuit With An Led - The invention relates to a method for operation of an actively clocked PFC circuit with a directly or indirectly connected load circuit at the output of the PFC circuit, wherein the load circuit has a lighting means, in particular one or more LEDs, wherein the PFC circuit is supplied at least with a measurement signal which reflects the power consumption of the load circuit or with an external control signal which indicates the power consumption, and a control circuit adjusts the mode of operation of the PFC circuit continuously or preferably in two or more steps, depending on the control signal or measurement signal.10-06-2011
20110169494Method for the Operation of Illuminants - The invention relates to the operation of illuminants, in particular OLEDs. The invention relates to a method and a measuring instrument for determining the electrical properties of an OLED, the equivalent circuit diagram of which is composed of the parallel connection of an equivalent diode D07-14-2011