Tridonic Patente

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The present invention relates to a converter device for providing a supply voltage and/or current to a lighting means. The converter device (1) comprises a first input terminal (SW), a second input terminal (CF), a combining circuit (13) and a control circuit (14). The first input terminal (SW) is configured to receive a first control signal, which is a switched AC signal, and the second input terminal (CF) is configured to receive a second control signal, which is a switched DC signal or a switched AC signal. The combining circuit (13) comprises a rectifying circuit (D71, D73, D74, D75) configured to generate a combined signal form the first control signal and the second control signal, wherein the combining circuit (13) controls the rectifying circuit (D71, D73, D74, D75) based on the second control signal to selectively fully rectify the first control signal or half rectify the first control signal. The control circuit (14) controls the converter device (1) based on the combined signal.

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The invention relates to a system comprising a LED driver and a LED load, comprising: output terminals for supplying the LED load; DC voltage output terminals for supplying a DC voltage preferably to supply a logic unit e.g. microcontroller or sensor; a DC voltage generation circuit connected to the DC voltage output terminals.

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Disclosed is a dimmable LED driver (1) for supplying an LED load (3) with a regulated DC voltage. The LED driver (1) comprises high-side, HS, low-side, LS, and parallel pin, PP, output terminals (11, LED+; 12, LED-; 13, PP); and a pulse-width modulation, PWM, circuit (14) for PWM dimming of its through current. The HS and LS output terminals (11, LED+; 12, LED-) are connectable to the LED load (3); the PWM circuit (14) is connected between the LS output terminal (12, LED-) and an ungrounded LS potential of the dimmable LED driver (1); and the PP output terminal (13, PP) is connected to the ungrounded LS potential of the dimmable LED driver (1) and further connectable to one or more further LED drivers (1, 1').. This enables dimming of parallel-connected constant voltage LED drivers with little wiring effort, no mutual communication or synchronization and no elaborate calibration.

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The present invention provides a system comprising a luminaire and a camera module. The luminaire and the camera module each comprise an interface for mechanically and electrically connecting the camera module and the luminaire with each other. The luminaire is configured to electrically supply the camera module with electrical energy via the interface of the luminaire and the interface of the camera module, when the interface of the camera module is electrically and mechanically connected to the interface of the luminaire. The camera module comprises a control circuit and at least one image sensor. The image sensor is configured to detect an image of an area within the detection field of the camera module and provide the image in the form of image data to the control circuit. The control circuit is configured to determine information on the area by extracting the information from the image data.

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Disclosed is an LED converter (1). The converter (1) comprises a boost converter topology, including a tapped inductance (101, L<mag>, N<1>, N<2>), a first capacitance (102, C<sw>) and a first rectifying component (103, D<0>), arranged in series between an input potential (V<in>) and an output potential (V<out>) of the converter (1). The converter (1) further comprises a resonant inductance (104, L<R>) and a switch (105, S), arranged in series between a tap of the tapped inductance (101, L<mag>, N<1>, N<2>) and a ground potential of the converter (1). The converter (1) further comprises a resonant capacitance (106, C<R>, C<oss>), arranged in parallel to the switch (105, S), and a second rectifying component (107, D<sw>), arranged in series between the tap of the tapped inductance (101, L<mag>, N<1>, N<2>) and a common potential of the first capacitance (102, C<sw>) and the first rectifying component (103, D<0>). The converter (1) further comprises a control circuit (110). The control circuit (110) is configured to regulate an input current (I<in>) of the converter (1) in accordance with an input voltage (V<in>) of the converter (1), a duty cycle signal (D) for the switch (105, S) and winding turns (N<1>, N<2>) of the tapped inductance (101, L<mag>, N<1>, N<2>). The control circuit (110) is further configured to generate the duty cycle signal (D) for the switch (105, S) in accordance with a control error (e = I<in,ref> - I<in,meas>) of the input current (I<in>) of the converter (1) and a valley switching in a boundary conduction mode, BCM, operation. This yields a boost in efficiency at high switching frequencies.

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The present invention relates to a method for connecting networkable devices (9..14) of a lighting system comprising receiving (101..107), by a first networkable device (9..14), a first network ID; generating (109), by the first networkable device (9..14), connection information from the first network ID using an algorithm; and establishing (109), by the first networkable device (9..14), a connection to a second networkable device (9..14) based on the connection information.

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An emergency lighting system comprises an indoor emergency lighting system (2), an outdoor lighting system (30), and an energy storage (22, 25). The indoor emergency lighting system (2) comprises at least one emergency luminaire (3, 4, 5), an emergency situation determination unit (7) and a controlling device (6). The controlling device (6) controls operation of the at least one emergency luminaire (3, 4, 5), wherein the controlling device (6) is configured to output an emergency situation information signal in response to a determined emergency situation. The outdoor lighting system (30) comprises at least one outdoor luminaire (8 to 13) which is communicatively coupled to the controlling device (6) of the indoor emergency lighting system (2). The energy storage (22, 25) is configured to selectively supply power via power supply wiring to the at least one luminaire (8 to 13) of the outdoor lighting system (30) in response to the emergency situation information signal output by the controlling device (6).

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