Tridonic

The invention relates to an operating device (10) for a luminaire (20). The operating device (10) comprises a printed circuit board, PCB (11), and an operating circuit which is at least partially arranged on the PCB (11). The operating circuit (12) comprises at least one capacitor (21) mounted on the PCB (11), wherein the capacitor (21) is subjected to a fluctuating voltage signal during an operation of the operating device (10). The PCB (11) comprises one or more slots (31) which are arranged on at least two sides of the capacitor (21).

The invention is related to a method for controlling an operating device of a load, wherein the operating device comprises a converter, comprising the steps of:determining (S11), by a controller, an operating mode to be a normal mode or a standby mode of the operating device; and in case the determined operating mode is the normal mode, controlling (S21), by the controller, the first output of the converter to output a target voltage; and in case the determined operating mode is the standby mode, controlling (S22), by the controller, the second output of the converter to output the target voltage; wherein the first output of the converter provides a voltage to the load and the second output of the converter provides a voltage for operating the controller.

The invention is related to a system for converting an input voltage into an output voltage by using multiple converter stages, comprising a first converter 1 that is configured to convert the input voltage to an intermediate voltage; and a second converter 2 that is configured to convert the intermediate voltage into the output voltage and to communicate information to a first converter 1; wherein the first converter 1 is configured to set at least one operational parameter of the first converter 1 to a target value based on the received information, such that the first converter 1 converts the input voltage into the intermediate voltage based on the at least one operational parameter.

The invention relates to a transformer arrangement (10). The transformer arrangement (10) comprises four inner core legs (11) which are arranged in a square configuration; four outer core legs (12) wherein each outer core leg (12) is arranged adjacent to a side face of the square configuration of the inner core legs (11); at least one primary winding (13) which is arranged around the square configuration of the inner core legs (11); and a plurality of secondary windings (14, 15), wherein each secondary winding (14, 15) is arranged around a respective one of the inner core legs (11) or the outer core legs (12).

The present invention provides a fixed output driver. The fixed output driver comprises: a power supply circuit configured to output a constant output characteristic based on a predefined value; an NFC communication module configured to receive one or more control parameters from an external NFC-enabled device; and a control circuit configured to adjust the output characteristic of the driver within a predefined range relative to the predefined value based on the received control parameters, without modifying the predefined value.

The present invention provides a control system (10) for controlling light emission of a luminaire (20) towards a surface (30). The control system (10) comprises a sensor (1) configured to detect light and having a sensitivity in the melanopic region, and a control unit (2). The sensor (1) is configured to be arranged such that the sensor (1) detects light (50) reflected from the surface (30) being illuminated by the luminaire when the luminaire emits light (40). The control unit (2) is configured to determine a melanopic equivalent daylight illuminance, MEDI, of the light emission (40) of the luminaire (20) using a detection result of the sensor (1). The control unit (2) is configured to control the light emission (40) of the luminaire (20) according to the determined MEDI.

Luminaire comprising lighting means configured to provide a light emission of the luminaire by emitting light, a driver, and a control unit configured to control the light emission of the luminaire by controlling an electrical supply of the lighting means from the driver. The control unit is configured to obtain a remaining lifetime of one or more electrical components of the luminaire, and control an indication of the remaining lifetime of an electrical component of the one or more electrical components via the light emission of the luminaire to outside the luminaire by determining one or more parameters, optionally a light intensity, a flashing, and/or a frequency of the flashing, of the light emission of the luminaire dependent on the remaining lifetime of the electrical component, generating one or more control signals according to the one or more parameters, and providing the one or more control signals to the driver.

The present invention provides a building management system (1) configured to receive wireless signals (5), optionally radio signals, transmitted by an electrical device (3) usable by a person (4), the wireless signals (5) comprising an identifier (ID) identifying the electrical device (3); recognize the electrical device (3) on the basis of the identifier (ID) in the received wireless signals (5); determine a distance (d) between a location of a building infrastructure device (2) of the building management system (i) and a location of the recognized electrical device (3) using the received wireless signals (5); determine on the basis of the determined distance (d) whether a condition for controlling the building infrastructure device (2) according to statistical control data associated with the recognized electrical device (3) is fulfilled; and control the building infrastructure device (2) according to the statistical control data in case that the condition is fulfilled.

The present invention provides a flyback power converter, the flyback power converter comprises: a transformer having a primary winding connected to an input supply and a secondary winding for supplying power to a load, a first switch arranged in series with the primary winding and configured to conduct current through the primary winding during an on-time and interrupt current flow during an off-time, an output circuit coupled to the secondary winding for powering the load; and an auxiliary circuit configured to be active during an off-time of the first switch. In a first phase of the off-time of the first switch, the auxiliary circuit is configured to absorb energy from the transformer; and in a second phase of the off-time of the first switch, the auxiliary circuit is configured to deliver at least part of the absorbed energy to the output circuit.

The present invention provides a surge protection circuit for a Flyback converter, the Flyback converter having a control integrated circuit, IC, with a current-sense pin, and a switching transistor. The surge protection circuit comprises: a surge event detection component configured to detect a surge event based on a mains input voltage to the Flyback converter, and generate an output signal upon detecting the surge event; and a signal path from the surge event detection component to the current-sense pin of the control IC, wherein the output signal is adapted to emulate an overcurrent condition at the current-sense pin, thereby triggering the control IC to halt switching of the switching transistor during the surge event.