Tridonic Gmbh Co. Kg

Jakob Maldoner

Frank Lochmann

Emanuel Wild

Patrick Marte

Harald Netzer

Markus Schertler

Oliver Wynnyczenko

Patrick Walch

Reimar Klotz

Jürgen Hrach

Alekssander Santiago

Wynnyczenko Oliver

An LED converter for supply of an LED load () is provided. The LED converter comprises a switched resonant converter () having at least one switch () controlled by a control unit of the switched resonant converter (). The control unit is configured to control a switching operation of the at least one switch () such that the switched resonant converter () supplies an adjustable constant current () to output terminals for the LED load (). The control unit is further configured to generate the adjustable constant current () by alternatingly controlling the at least one switch () with one of at least two different, and adaptable, switching frequencies () at a time for a respective time period (), and by adjusting a relative duration of the time periods (). Thereby, a resolution of an output current of the LED converter for supply of the LED load () is improved, which is of particular relevance for dimming applications.

Frequency modulation for controlling switched resonant converter

The invention relates to an adaptor for electrically connecting a lighting apparatus to an electrified track, wherein the electrified track comprises AC main phases L, Land Land a neutral wire N, wherein the adaptor has a housing designed to be inserted into a U-shaped profile of the electrified track, wherein the adaptor has contacts for contacting the AC main phases L, Land Land the neutral wire N of the electrified track, wherein the adaptor comprises an electronic control unit in the housing, wherein the control unit is configured to select a combination of one of the all connected AC main phases L, L, Lwith the neutral wire N for supplying the lighting apparatus.

Adapter for electrically connecting a lighting device to an electrical track

The present invention relates to an adapter () for connecting a light to a track having mains phases and comprising a housing (), at least one spring-loaded connector () linked to the housing (), and a cover () partially covering the housing () and having at least one opening (). The cover () is displaceable so as to be placed selectively in one of: a position in which the at least one spring-loaded connector () extends at least partially through the at least one opening (), a position in which the cover () covers the at least one spring-loaded connector ().

Adapter for electrically connecting a lighting device to an electrical track, lighting system comprising such an adapter and an electrical track

An isolated primary side switched converter () has a galvanic isolation stage () separating a primary side () and a secondary side (). The secondary side winding () is connected to a rectification circuit and has a center tap. A first terminal (T), a second terminal (T) and a third terminal (T) are provided for connecting one or more LED loads (LED, LED) to the secondary side () of the converter (). The rectification circuit () is configured to set the first terminal (T) at a positive electrical polarity and to set the second terminal (T) at a negative polarity. The third terminal (T) is electrically connected to the center tap. One or two LED loads can be connected between Tand T(low voltage) and Tand T(low voltage), or in one embodiment a single LED load can also be connected between Tand T(high voltage).

Isolated primary side switched converter for LED loads

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Stegg, Austria

Jakob Maldoner