Abstract: The invention provides a lighting system and a lighting control component for such a system. The components are battery-operated, and include a remote control signal receiver for receiving commands and configurations during commissioning. A disabling system is provided for enabling and disabling the remote control signal receiver, such that the remote control signal receiver is enabled when a commissioning process of the lighting system is expected and disabled when a commissioning process of the lighting system is not expected. This reduces the power consumption of the component after the commissioning is complete but provides ease of use during commissioning.

Abstract: A timing circuit (24), in particular a real time clock circuit, in a lighting device (10) that is periodically (17) powered from a main power supply (15) in accordance with a power supply cycle having a power-on time and a power-off time, is automatically synchronized in case the power condition of an auxiliary power supply (23) is insufficient to assume correct operation of the timing circuit (24). At each power-on of the power supply cycle, a power condition of the auxiliary power supply (23) is monitored. If the determined power condition exceeds a set power threshold, it is assumed that the momentary timing value of the timing circuit (24) is correct and this value is stored in a non-volatile memory (29), If the determined power condition gives rise to assuming malfunctioning of the timing circuit (24), for example due to absence of power for a longer time, the timing circuit (24) is synchronised to the stored timing value.

Abstract: The invention describes an LED lighting arrangement (1) comprising an LED load (10) comprising a number of LEDs (100); input terminals (14hi, 14lo) for connection to a power supply (2) realised to provide an input voltage (UPS) at a primary input voltage level (VPS); a voltage boost module (11) realised to boost the input voltage (UPS) to a level above the primary input voltage level (VPS) on the basis of a dim level input signal (30); and a dimming module (12) realised to decrease the LED current (ILED) through the LED load (10) when the boosted voltage (Uboost) exceeds the primary input voltage level (VPS). The invention further describes a method of driving an LED lighting arrangement (1).

Abstract: A system (1) is disclosed, which comprises a transmitting device (2) and a receiving device (3). The transmitting device (2) comprises a light source (4) configured to vary the intensity of the emitted light so as to include information in light (5) emitted by the light source (4). The receiving device (3) comprises a lighting device (7) configured to emit light at least during some periods of time. At least one light sensor (6) of the receiving device (3) is configured to sense light emitted by the light source (4) and convert it into at least one received signal. The receiving device (3) is configured such that the at least one light sensor (6) at least during some periods of time does not receive any light emitted by the lighting device (7). The at least one received signal can be processed so as to determine the information included in the light (5) emitted by the light source (4).

Abstract: A timing circuit (24), in particular a real time clock circuit, in a lighting device (10) that is periodically (17) powered from a main power supply (15) in accordance with a power supply cycle having a power-on time and a power-off time, is automatically synchronized in case the power condition of an auxiliary power supply (23) is insufficient to assume correct operation of the timing circuit (24). At each power-on of the power supply cycle, a power condition of the auxiliary power supply (23) is monitored. If the determined power condition exceeds a set power threshold, it is assumed that the momentary timing value of the timing circuit (24) is correct and this value is stored in a non-volatile memory (29), If the determined power condition gives rise to assuming malfunctioning of the timing circuit (24), for example due to absence of power for a longer time, the timing circuit (24) is synchronised to the stored timing value.

Abstract: A lighting control module comprises an interface for receiving a dimming setting and a memory for storing the dimming setting. Based on the dimming setting, an output circuit generates a dimming control signal for application to a conventional dimming interface of a lighting driver circuit. For this purpose, power is received from the dimming interface. This provides a simple to use way to implement a controllable brightness, which makes use of a dimming driver but used for a luminaire which does not need to be within a networked dimmable system architecture.

Abstract: The present invention proposes to use a power negotiation connection (e.g. the VBUS channel) of a power delivery interface for transmitting or receiving control commands or, respectively, status information to/from a lighting device. The power negotiation connection can be used as a communication channel that is fully independent of the data connection. It uses, for example, different protocols and different wires than the data connection. Control commands, such as dim level or color, can be encoded in a vendor defined message of a related power negotiation protocol.

Abstract: The invention provides a lighting system and a lighting control component for such a system. The components are battery-operated, and include a remote control signal receiver for receiving commands and configurations during commissioning. A disabling system is provided for enabling and disabling the remote control signal receiver, such that the remote control signal receiver is enabled when a commissioning process of the lighting system is expected and disabled when a commissioning process of the lighting system is not expected. This reduces the power consumption of the component after the commissioning is complete but provides ease of use during commissioning.

Abstract: The invention describes an LED lighting module (1) comprising input terminals (13hi, 13lo) for connecting to an input voltage (Uin); an LED load (10) realized to operate at an upper threshold voltage level (Vdim); and a regulation circuit (11, 12) realized to decrease LED current (ILED) through the LED load (10) when the input voltage (Uin) is greater than the upper threshold voltage level (Vdim). The invention further describes an LED lighting arrangement (4) and a method of driving an LED load (10).

Abstract: The invention describes an LED lighting arrangement (1) comprising an LED load (10) comprising a number of LEDs (100); input terminals (14hi, 141o) for connection to a power supply (2) realised to provide an input voltage (UPS) at a primary input voltage level (VPS); a voltage boost module (11) realised to boost the input voltage (UPS) to a level above the primary input voltage level (VPS) on the basis of a dim level input signal (30); and a dimming module (12) realised to decrease the LED current (ILED) through the LED load (10) when the boosted voltage (Uboost) exceeds the primary input voltage level (VPS). The invention further describes a method of driving an LED lighting arrangement (1).

Abstract: A power scavenger circuit (180) in a sensor device (100) for a lighting system (1) comprises: a controllable boost converter (110) having an input (111, 112) for receiving an input current (Iin) from an interface (2), and having an output (119a, 119b) for providing an output voltage (VB); a capacitor (130) coupled to the output of the boost converter (110); a second converter (140) having an input (141, 142) coupled to the capacitor and having an output (149a, 149b) for providing a supply voltage (VDD) for a microprocessor (150). A scavenging control device (120) has a sensing input (121) coupled to said converter input for sensing the voltage (Vout) at said converter input. The scavenging control device controls the boost converter in such manner that the sensed voltage is kept constant, so that the voltage at said interface can be considered as an output signal from the sensor device.

Abstract: The invention relates to a lighting system (1) comprising a lighting device (6) having a first USB-PD connector and a power providing unit, which is preferentially a component of a power providing device (4) and which is operable in different operational modes. A second USB-PD connector is electrically connected with the power providing unit and adapted to be connected with the first USB-PD connector for generating a USB-PD connection (5) via which power and optionally also data are receivable by the lighting device. A connection feature value being indicative of a feature of the connection is determined and the operational mode of the power providing unit is controlled depending on the determined connection feature value. This allows for a reaction on the current connection situation. For instance, if the connection feature value indicates a relatively low thermal coupling, the power providing unit may provide less power.

Abstract: The invention describes an LED lighting module (1) comprising input terminals (13hi, 13lo) for connecting to an input voltage (Uin); an LED load (10) realised to operate at an upper threshold voltage level (Vdim); and a regulation circuit (11, 12) realised to decrease LED current (ILED) through the LED load (10) when the input voltage (Uin) is greater than the upper threshold voltage level (Vdim). The invention further describes an LED lighting arrangement (4) and a method of driving an LED load (10).

Abstract: A lighting control module comprises an interface for receiving a dimming setting and a memory for storing the dimming setting. Based on the dimming setting, an output circuit generates a dimming control signal for application to a conventional dimming interface of a lighting driver circuit. For this purpose, power is received from the dimming interface. This provides a simple to use way to implement a controllable brightness, which makes use of a dimming driver but used for a luminaire which does not need to be within a networked dimmable system architecture.

Abstract: The invention relates to a lighting system (1) comprising a lighting device (6) having a first USB-PD connector and a power providing unit, which is preferentially a component of a power providing device (4) and which is operable in different operational modes. A second USB-PD connector is electrically connected with the power providing unit and adapted to be connected with the first USB-PD connector for generating a USB-PD connection (5) via which power and optionally also data are receivable by the lighting device. A connection feature value being indicative of a feature of the connection is determined and the operational mode of the power providing unit is controlled depending on the determined connection feature value. This allows for a reaction on the current connection situation. For instance, if the connection feature value indicates a relatively low thermal coupling, the power providing unit may provide less power.

Abstract: The invention relates to an interface device for supplying power to a variable number of loads, which are configured to be coupled to the interface device by means of a supply line and which are configured to communicate with the interface device, to a system comprising such interface device and one or more loads, to a corresponding method for supplying power and to a corresponding software product. A particular feature of the present invention is that the interface device functions as an intermediate between an USB power source and the loads connected to the interface device by supplying power while being flexible to both sides, i.e. to the supplying side as well as to the load side, in allowing for a flexible number of loads to be coupled to the interface device (i.e. to be supplied by the interface device with power) and in also providing a negotiation with the power supply depending on the necessary power.

Abstract: The present invention proposes to use a power negotiation connection (e.g. the VBUS channel) of a power delivery interface for transmitting or receiving control commands or, respectively, status information to/from a lighting device. The power negotiation connection can be used as a communication channel that is fully independent of the data connection. It uses, for example, different protocols and different wires than the data connection. Control commands, such as dim level or color, can be encoded in a vendor defined message of a related power negotiation protocol.

Abstract: The invention relates to an interface device for supplying power to a variable number of loads, which are configured to be coupled to the interface device by means of a supply line and which are configured to communicate with the interface device, to a system comprising such interface device and one or more loads, to a corresponding method for supplying power and to a corresponding software product. A particular feature of the present invention is that the interface device functions as an intermediate between an USB power source and the loads connected to the interface device by supplying power while being flexible to both sides, i.e. to the supplying side as well as to the load side, in allowing for a flexible number of loads to be coupled to the interface device (i.e. to be supplied by the interface device with power) and in also providing a negotiation with the power supply depending on the necessary power.

Abstract: Apparatuses for driving loads via converters comprise first circuits for interfacing phase-cut dimmers and the converters. Firing angles of the phase-cut dimmers correspond with first moments in time during periods of voltage signals presented to the phase-cut dimmers. The converters draw first current signals from second until third moments in time during the periods. Second circuits control the converters to draw second current signals from fourth until fifth moments in time during the periods, to improve an energy efficiency.

Abstract: Apparatuses (1, 2) for driving loads (3) via converters (4) comprise first circuits (1) for interfacing phase-cut dimmers (5) and the converters (4). Firing angles of the phase-cut dimmers (5) correspond with first moments in time during periods of voltage signals presented to the phase-cut dimmers (5). The converters (4) draw first current signals from second until third moments in time during the periods. Second circuits (2) control the converters (4) to draw second current signals from fourth until fifth moments in time during the periods, to improve an energy efficiency. The first current signals may be delivered by supplies (6). The second current signals may be delivered by output capacitors (32, 34, 35) of the first circuits (1). The third moments in time may be adaptable. One or more of the first and second and third moments in time may be situated before a zero-crossing of the voltage signal and one or more of the fourth and fifth moments in time may be situated after the zero-crossing.