Tridonic Gmbh Co. Kg

Tridonic Jennersdorf Gmbh

Tridonicatco Gmbh & Co Kg

Tridonic Ag

Günter Marent

Horst Knoedgen

Peter Pachler

Stefan Zudrell-Koch

Michael Zimmermann

Eduardo Pereira

Frank Lochmann

Florian Moosmann

Reinhold Juen

Frank Horn

Steffen Riemer

Thomas Ondrisek

Alexander Barth

Andre Mitterbacher

Christoph Vonach

Markus Mayrhofer

Jamie Kelly

Christian Nesensohn

Mathias Dunser

Werner Ludorf

John Schönberger

Hans Auer

Klaus Mündle

Mathias Duenser

Norbet Kleber

Joan Ortega

Matthias Dunser

Jurgen Fink

Norbert Kleber

Martin Mohr

Marco Seibt

Mathias DÜNSER

Jürgen Fink

Martin Huber

Nebosja Jelaca

The aim of the invention is to determine an operating point () of an AC/DC converter and optionally of a DC/DC converter, fed by the AC/DC converter, for feeding an operating DC voltage into a luminaire bus system in such a way that a power loss () of the luminaire bus system is reduced. This aim is achieved according to the invention in that a plurality of calibration DC voltages () are sequentially fed into the luminaire bus system, and a corresponding power consumption of the luminaire bus system is determined for each calibration DC voltage (). The operating point can then be determined based on the power consumptions.

Luminaire bus system

A PFC module is disclosed and contains an actively clocked PFC circuit () comprising at least one controlled switch (S), and an integrated circuit () as a control unit which controls during a half-wave of the input voltage(V)of the actively clocked PFC circuit () the at least one switch(S) of the actively clocked PFC circuit () with a fixed operating frequency in discontinuous current mode(DCM) The integrated circuit () sets the switch-on time (t) of the at least, one switch (S)dependent on the amplitude of the input voltage (V) of the actively clocked. PFC circuit (), and keeps constant the switch-on time (t) for at least two consecutive switching cycles within the half-wave of the input voltage (V), Also disclosed are a system containing the PFC module and a method for operating the PFC module.

Power factor correction (PFC) module operating in discontinuous current mode (DCM), system containing the PFC module and methods of operating therefor

The invention relates to an LED module (), comprising: connections () for an LED series (); a circuit (), which is designed to constitute a load, preferably an active-power load, when a first supply voltage () not equal to zero is applied to the LED module (), which active-power load is dimensioned in such a way that, when an LED series () is connected, said LED series is not conductive, and which is designed to constitute no load when a second supply voltage () not equal to zero is applied to the LED module (), for which second supply voltage, when an LED series () is connected, said LED series is conductive and light is emitted, wherein the type of load change is selected in dependence on the value of the first supply voltage and/or a modulation of the first supply voltage.

LED module

In one aspect, the invention provides a module for operating at least one lighting means, preferably at least one LED, said module having at least one electrically insulating barrier that separates a primary side, which can be supplied from a mains voltage, from a secondary side of the module, from which secondary side preferably the at least one LED can be supplied. On the secondary side are arranged a control circuit and a passive circuit which is connected to a single input of the control circuit and has at least two resistors, at least one of which is connected in series to a capacitor, the input being selectively connectable via a switch of the control circuit, and the control circuit being designed to detect at least two measurement signals at the input after switching of the switch depending on the degree of loading of the capacitor.

Module for lighting means with combined secondary-side measurement signal detection

An LED converter () comprises a converter circuit () with potential separation (). The converter circuit () has at least one controllable switching means (). A control device () for switching the at least one controllable switching means () in a clocked manner is configured to modulate a switching frequency of the at least one controllable switching means () in order to transmit information across a potential barrier ().

LED converter and method for controlling a converter circuit of an LED converter

The invention relates to a device for operating LEDs, comprising a driver module and an LED module (), which is controlled by the driver module () and has at least one LED. The LED module () is fed a current by the driver module () via a first connection (), and a second connection () is present, preferably as a ground connection (GND). The device is characterized in that the LED module () is connected to the driver module () by means of a third connection (), which is designed as a data channel, a voltage fed by the driver module () being applied to the data channel.

Device for operating LEDs

The invention relates to an LED module (), comprising: connections () for an LED array (); a circuit () which is configured to constitute a load, preferably an effective power load, if during a starting phase a constant current or a constant voltage is applied to the LED module (), and which is configured not to constitute a load when the starting phase has finished, wherein the circuit () is designed to constitute a variable-current load which effects a change in the power consumption of the LED module () according to at least one predetermined protocol effected.

Detection of an LED module

The invention relates to a method for operating LEDs (), comprising a driver module () and an LED module () having at least one LED (), which LED module () is controlled by the driver module (), wherein the driver module () has a first connection (), which is designed to feed the LED module () with a current, and has a second connection () is present as earth connection (GND), wherein the LED module () is fed with a current by the driver module () via a first connection () and a second connection () is present as earth connection (GND), characterized in that the driver module () temporarily lowers the voltage at the first connection () and monitors the voltage at the first connection () and is designed to evaluate a change in the voltage at said connection as a transfer of information from the LED module ().

Device for LED operation

In an electronic ballast the output d.c. voltage (U) of a PFC intermediate circuit () is to be regulated. The intermediate circuit () has a clocked switch (S) which is controlled by a regulation circuit (). The regulation circuit () includes two counters (Z, Z). The counter (Z) has a greater number of count stages than the counter (Z). The counter (Z) is counted upwards or downwards in dependence upon the regulation difference. The counter (Z) is repeatedly counted only in one direction and for example reset by a reset signal. By comparing the counts of corresponding count stages of the two counters (Z) and (Z) in a comparator, the switch on time (t) for the clock switch (S) is determined.

Electronic ballast and operating method for a gas discharge lamp

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Bartholomäberg, Austria

Günter Marent