Abstract: A method for driving one or more electrically powered light sources, such as LED modules, may include applying a pulse-width-modulated signal thereto having a pulse-repetition frequency and a duty-cycle, the duty-cycle being selectively variable in order to vary the intensity of light emitted by the light source or light sources. To counter the occurrence of temporal light artefacts, or TLAs, the method may include frequency modulating the pulse-width-modulated signal (VPWM) by varying the pulse-repetition frequency thereof around a certain value between a lower frequency value and a higher frequency value, thus giving rise to a signal with combined FM/PWM modulation.

Abstract: A method for driving a unidirectional current through an electrical load, such as one or more LED modules, by applying thereto a PWM-modulated signal that swings between a high value and a low value envisages choosing said high value and said low value as nonzero values having a same sign.

Abstract: An assembly and a method is provided where the LED module includes a plurality of module units interconnected between common connection lines in a sequential order with increasing distances towards a connection terminal of the LED module. The circuit assembly includes an output terminal having a first output terminal portion and a second output terminal portion, a main power supply for supplying an operation voltage potential to a first output terminal portion, a control device for generating a pulse width modulation signal, and an electronic switch coupled to the control device and configured to obtain the pulse width modulation signal and arranged to connect and disconnect a second output terminal portion to/from a reference potential in accordance with the pulse width modulation signal, such as to supply a pulse width modulated voltage to the output terminal. A pulse shaping unit is coupled to the control device.

Abstract: A method for driving one or more electrically powered light sources, such as LED modules, may include applying a pulse-width-modulated signal thereto having a pulse-repetition frequency and a duty-cycle, the duty-cycle being selectively variable in order to vary the intensity of light emitted by the light source or light sources. To counter the occurrence of temporal light artefacts, or TLAs, the method may include frequency modulating the pulse-width-modulated signal (VPWM) by varying the pulse-repetition frequency thereof around a certain value between a lower frequency value and a higher frequency value, thus giving rise to a signal with combined FM/PWM modulation.

Abstract: An assembly and a method is provided where the LED module includes a plurality of module units interconnected between common connection lines in a sequential order with increasing distances towards a connection terminal of the LED module. The circuit assembly includes an output terminal having a first output terminal portion and a second output terminal portion, a main power supply for supplying an operation voltage potential to a first output terminal portion, a control device for generating a pulse width modulation signal, and an electronic switch coupled to the control device and configured to obtain the pulse width modulation signal and arranged to connect and disconnect a second output terminal portion to/from a reference potential in accordance with the pulse width modulation signal, such as to supply a pulse width modulated voltage to the output terminal. A pulse shaping unit is coupled to the control device.

Abstract: A method of manufacturing support elements for lighting devices includes: providing an elongated, electrically non-conductive substrate with opposed surfaces, with an electrically-conductive layer extending along one of said opposed surfaces, etching said electrically-conductive layer to provide a set of electrically-conductive tracks extending along the non-conductive substrate with at least one portion of the non-conductive substrate left free by the set of electrically-conductive tracks, forming a network of electrically-conductive lines coupleable with at least one light radiation source at said portion of said non-conductive substrate left free by the electrically-conductive tracks. Said forming operation includes selectively removing e.g. via laser etching a further electrically-conductive layer provided on said non-conductive substrate, or printing electrically-conductive material onto the non-conductive substrate.

Abstract: Various embodiments may relate to a lighting system including a string of light sources connected in series between a first terminal and a second terminal, wherein at least one electrical contact of the string of light sources is accessible. The system further includes a protection circuit that protects the light sources from an electrostatic discharge applied to the electrical contact that is accessible. In particular, the protection circuit includes at least one TVS diode or set of antiparallel diodes connected to the second terminal, and for each electrical contact a respective capacitor connected between the respective electrical contact and a TVS diode or set of antiparallel diodes, in such a way that an electrostatic event applied to an electrical contact is discharged through the respective capacitor and the respective TVS diode or set of antiparallel diodes towards the second terminal.

Abstract: An electronic component may include e.g. a solid-state light radiation source, preferably a LED light radiation source, is provided with electrical contact pads for soldering onto a mounting board. The electrical contact pads are arranged over a soldering area having a central portion and a peripheral portion surrounding said central portion. The electrical contact pads include at least one first electrical contact pad arranged at central portion of the soldering area, and at least one second electrical contact pad arranged at peripheral portion of the soldering area.

Abstract: A lighting device, such as a LED module, comprising an elongated support structure having a longitudinal direction and electrically-powered light radiation sources distributed along the support structure, the support structure including at least one light-permeable layer, one or more optical signal sources coupled with the light-permeable layer, for injecting therein an optical signal propagating in the longitudinal direction, and one or more optical signal detectors coupled with the light-permeable layer, for detecting the optical signal injected by the optical signal source(s).

Abstract: A support structure for electrically-powered lighting devices (e.g. LED modules) includes: an elongated laminar substrate having first and second mutually opposed surfaces, a layer of electrically-conductive material, e.g. copper, on the first surface of the laminar substrate, the layer including etching forming first electrically-conductive formations extending along the first surface of the laminar substrate, a distribution of electrically-conductive areas on the second surface of the laminar substrate, the distribution including electrically-conductive areas formed by means of etching and distributed with a constant separation pitch along the second surface of the laminar substrate, electrically-conductive vias extending through the laminar substrate to connect the first electrically-conductive formations and the electrically-conductive areas in said distribution, and a network of second electrically-conductive formations including electrically-conductive ink deposited (e.g.

Abstract: A method for forming support structures for electrically-powered lighting devices, the method comprising: providing an electrically insulating ribbon-like substrate, forming electrically-conductive lines on a surface of the substrate by screen printing of electrically-conductive ink, the screen printing comprising printing a plurality of repeated printed images, which follow one another along a longitudinal direction and are separated from each other by separation gaps, and forming electrically-conductive ink jumpers that extend through the separation gaps and which provide electrical continuity between electrically-conductive lines of adjacent printed images, wherein forming ink jumpers comprises delivering electrically-conductive ink by inkjet printing.

Abstract: A support structure for lighting devices, the support structure includes a ribbon-like support member with electrically conductive lines with mounting locations for electrically powered light radiation sources. The structure includes a sequence of adjacent units having opposed end regions and is severable between mutually facing end regions of adjacent units in the sequence. The units include, at the end regions, at least one electrical connection formation. The electrical connection formation includes a proximal portion electrically coupled to the electrically conductive lines of the respective unit, and a distal portion electrically insulated from the proximal portion. The distal portion is electrically coupled to the distal portion of an electrical connection formation provided in an adjacent unit to the respective unit in the sequence of adjacent units and is separable therefrom by severing the support structure.

Abstract: A lighting device, such as a LED module, comprising an elongated support structure having a longitudinal direction and electrically-powered light radiation sources distributed along the support structure, the support structure including at least one light-permeable layer, one or more optical signal sources coupled with the light-permeable layer, for injecting therein an optical signal propagating in the longitudinal direction, and one or more optical signal detectors coupled with the light-permeable layer, for detecting the optical signal injected by the optical signal source(s).

Abstract: A support structure for electrically-powered lighting devices (e.g. LED modules) includes: an elongated laminar substrate having first and second mutually opposed surfaces, a layer of electrically-conductive material, e.g. copper, on the first surface of the laminar substrate, the layer including etching forming first electrically-conductive formations extending along the first surface of the laminar substrate, a distribution of electrically-conductive areas on the second surface of the laminar substrate, the distribution including electrically-conductive areas formed by means of etching and distributed with a constant separation pitch along the second surface of the laminar substrate, electrically-conductive vias extending through the laminar substrate to connect the first electrically-conductive formations and the electrically-conductive areas in said distribution, and a network of second electrically-conductive formations including electrically-conductive ink deposited (e.g.

Abstract: A method of manufacturing support elements for lighting devices includes: providing an elongated, electrically non-conductive substrate with opposed surfaces, with an electrically-conductive layer extending along one of said opposed surfaces, etching said electrically-conductive layer to provide a set of electrically-conductive tracks extending along the non-conductive substrate with at least one portion of the non-conductive substrate left free by the set of electrically-conductive tracks, forming a network of electrically-conductive lines coupleable with at least one light radiation source at said portion of said non-conductive substrate left free by the electrically-conductive tracks. Said forming operation includes selectively removing e.g. via laser etching a further electrically-conductive layer provided on said non-conductive substrate, or printing electrically-conductive material onto the non-conductive substrate.

Abstract: Various embodiments may relate to a lighting system including a string of light sources connected in series between a first terminal and a second terminal, wherein at least one electrical contact of the string of light sources is accessible. The system further includes a protection circuit that protects the light sources from an electrostatic discharge applied to the electrical contact that is accessible. In particular, the protection circuit includes at least one TVS diode or set of antiparallel diodes connected to the second terminal, and for each electrical contact a respective capacitor connected between the respective electrical contact and a TVS diode or set of antiparallel diodes, in such a way that an electrostatic event applied to an electrical contact is discharged through the respective capacitor and the respective TVS diode or set of antiparallel diodes towards the second terminal.

Abstract: In various aspects of this disclosure, a support structure for lighting devices is provided. The support structure includes a ribbon-like support member with electrically conductive lines with mounting locations for electrically powered light radiation sources. The structure includes a sequence of adjacent units having opposed end regions and is severable between mutually facing end regions of adjacent units in the sequence. The units include, at the end regions, at least one electrical connection formation. The electrical connection formation includes a proximal portion electrically coupled to the electrically conductive lines of the respective unit, and a distal portion electrically insulated from the proximal portion. The distal portion is electrically coupled to the distal portion of an electrical connection formation provided in an adjacent unit to the respective unit in the sequence of adjacent units and is separable therefrom by severing the support structure.

Abstract: A method for mounting planar lighting modules on a mounting surface may include: providing on opposite sides of the lighting module fixing indentations opening toward the aforesaid sides, superimposing on said opposite sides of the lighting module stiffening bars having lateral lobes extending into said indentations, and fixing to the mounting surface the stiffening bars superimposed on the opposite sides of the lighting module with the opposite sides of the lighting module sandwiched between the stiffening bars and the mounting surface, whereby the stiffening bars urge the lighting module toward the mounting surface.

Abstract: An electronic component may include e.g. a solid-state light radiation source, preferably a LED light radiation source, is provided with electrical contact pads for soldering onto a mounting board. The electrical contact pads are arranged over a soldering area having a central portion and a peripheral portion surrounding said central portion. The electrical contact pads include at least one first electrical contact pad arranged at central portion of the soldering area, and at least one second electrical contact pad arranged at peripheral portion of the soldering area.

Abstract: A lighting device may include a mounting board with first and second opposed faces and vias extending therethrough, one or more light radiation sources mounted on the first face of the mounting board, drive circuitry for the light radiation source mounted on the second face of the mounting board, with electrically conductive lines between the light radiation source and the drive circuitry passing through said vias, a vat-like holder housing the mounting board with the light radiation source and the drive circuitry mounted thereon. The holder has cavities for receiving therein the drive circuitry with the first face of the mounting board and the light radiation source mounted thereon facing outwardly of the holder. Over the first face of the mounting board at least one sealing layer is applied, which ensures an IP grade protection of device.