Abstract: An LED module includes a heat sink. The heat sink has a mounting surface that defines, with respect to ambient light incident thereon, one main direction of a beam perpendicular to the mounting surface and secondary directions of the beam inclined to the main direction of the beam at angles having absolute values smaller than or equal to 90 degrees. The heat sink also has a reflection surface oriented such that, with respect to the ambient light incident on thereon, a main direction of the beam of the reflection surface is perpendicular to the reflection surface and points in a direction included in the angle range determined by the main direction of the beam of the mounting surface and the secondary directions of the beam of the mounting surface. The LED module further includes an LED light source on the mounting face and pigments on the reflection surface.

Abstract: A heatsink, a light-emitting diode (LED) module and a corresponding method of manufacture are described. A heatsink includes an electrically conductive heatsink core and an electrically insulating layer covering at least the first surface of the electrically conductive heatsink core. The electrically conductive heatsink core has a first pin that is integral with the electrically conductive heatsink core and protrudes from a first surface of the heatsink core. At least the first surface of the heatsink core is covered by an electrically insulating layer, which leaves at least portions of a lateral surface of the first pin exposed from the electrically insulating layer.

Abstract: A heatsink, a light-emitting diode (LED) module and a corresponding method of manufacture are described. A heatsink includes an electrically conductive heatsink core and an electrically insulating layer covering at least the first surface of the electrically conductive heatsink core. The electrically conductive heatsink core has a first pin that is integral with the electrically conductive heatsink core and protrudes from a first surface of the heatsink core. At least the first surface of the heatsink core is covered by an electrically insulating layer, which leaves at least portions of a lateral surface of the first pin exposed from the electrically insulating layer.

Abstract: An LED module includes a heat sink. The heat sink has a mounting surface that defines, with respect to ambient light incident thereon, one main direction of a beam perpendicular to the mounting surface and secondary directions of the beam inclined to the main direction of the beam at angles having absolute values smaller than or equal to 90 degrees. The heat sink also has a reflection surface oriented such that, with respect to the ambient light incident on thereon, a main direction of the beam of the reflection surface is perpendicular to the reflection surface and points in a direction included in the angle range determined by the main direction of the beam of the mounting surface and the secondary directions of the beam of the mounting surface. The LED module further includes an LED light source on the mounting face and pigments on the reflection surface.

Abstract: The invention relates to a management unit (1) and a method for operating such a unit in a Power-over-Ethernet (PoE) installation. The management unit (1) comprises at least one first port (12a) to which an external device (2) can be connected, and it is adapted to control the power delivered at a first port (12a) in dependence on predetermined switching rules.

Abstract: The invention relates to a management unit (1) and a method for operating such a unit in a Power-over-Ethernet (PoE) installation. The management unit (1) comprises at least one first port (12a) to which an external device (2) can be connected, and it is adapted to control the power delivered at a first port (12a) in dependence on predetermined switching rules.

Abstract: Described is a management unit (1) and a method for operating such a unit in a Power-over-Ethernet (PoE) installation. The management unit (1) comprises at least one first port (12a) to which an external device (2) can be connected, and it is adapted to control the power delivered at a first port (12a) in dependence on predetermined switching rules.

Abstract: A power supplying device is provided for providing electrical power to a power receiving device, the power supplying device comprising two plates, two electrode structures being arranged to be coupled to an AC power source and at least one power transmitter. Each electrode structure is attached to one of said two plates. The power transmitter is situated in between the two plates and comprises an electrically conductive coil and at least two electrical contacts coupled to the electrically conductive coil. The plates and the power transmitter are arranged such that the power transmitter is movable in a direction parallel to the surfaces of the plates with the electrical contacts in contact with the respective two electrode structures for obtaining power from the AC power source.

Abstract: A shading device for a greenhouse includes a shading element and at least one lighting element, wherein the shading element comprises an outer side and an inner side. The shading element is formed from interwoven electrically conductive first thread elements and electrically insulating second thread elements. The first and/or second thread elements each may be adapted for reflecting an ambient light. The lighting element(s) may be arranged at the inner side of the shading element and connected with the first thread elements, and the lighting element(s) may be driven by an electrical current, conducted by the first thread elements, resulting in the emission of an artificial light, which may illuminate a plant growing in the greenhouse.

Abstract: The invention relates to a shading device (10) for a greenhouse (15), with a shading element (20) and at least one lighting element (50,50?), wherein the shading element (20) comprises an outer side (21) and an inner side (22), the shading element (20) is formed from interwoven electrically conductive first thread elements (30,30?) and electrically insulating second thread elements (40), the first thread element (30,30?) comprises a reflective mean (33), reflecting an ambient light (60), the lighting element (50,50?) is arranged at the inner side (22) of the shading element (20) and connected with the first thread element (30,30?), and the lighting element (50,50?) is driven by an electrical current, conducted by the first thread element (30,30?), resulting in the emission of an artificial light (51), illuminating a plant (80) growing in the greenhouse (15).

Abstract: A shading device for a greenhouse includes a shading element and at least one lighting element, wherein the shading element comprises an outer side and an inner side. The shading element is formed from interwoven electrically conductive first thread elements and electrically insulating second thread elements. The first and/or second thread elements each may be adapted for reflecting an ambient light. The lighting element(s) may be arranged at the inner side of the shading element and connected with the first thread elements, and the lighting element(s) may be driven by an electrical current, conducted by the first thread elements, resulting in the emission of an artificial light, which may illuminate a plant growing in the greenhouse.

Abstract: An LED driver uses a current setting passive component to set an operating current, and also uses a voltage setting passive component to derive an acceptable voltage range. A current driver is then controlled to deliver the current setting and monitor that a voltage being provided is within the acceptable voltage range.

Abstract: The invention describes an Organic Light Emitting Device (1) comprising an active layer (13) between a first electrode (11) and a second electrode (12); electrical connectors (3, 34); a plurality of current distributors (21) for electrically contacting at least the first electrode (11), a plurality of selectively addressable current distribution lines (24, 25) being arranged to extend between the electrical connectors (3, 34) and the current distributors (21); a power supply (100) being electrically connected to the electrical connectors (3, 34), the powers supply (100) comprising a controller (110), the controller (110) being adapted to control a current flow to the current distributors (21) based on electrical parameters characterizing the brightness of an area (22) of the Organic Light Emitting Device (1) around the current distributors (21), and at least one sensor (200), the sensor (200) being adapted to measure data being relevant for the brightness distribution of the Organic Light Emitting Device (

Abstract: A power supply circuit for providing an output voltage that is higher than an input voltage. The power supply circuit is comprised of a bridge circuit and a resonant circuit, and is coupleable to a power source and a load circuit. The power supply circuit provides a boost function for stepping up an input voltage in order to reduce the required number of battery cells in order to power a load, such as a series of LEDs.

Abstract: A supply circuit includes: a bridge circuit, one or more resonant circuits coupled to the bridge circuit, each of the one or more resonant circuits being coupleable to a corresponding load circuit among one or more load circuits each of which includes one or more loads; one or more supply switching units, each of the one or more supply switching units being associated with a corresponding one of the one or more resonant circuits and being coupled between the bridge circuit and an associated one of the one or more load circuits for connecting and disconnecting the associated load circuit from the bridge circuit; and a control unit for controlling each of the one or more supply switching units in synchronization with a resonant current of the resonant circuit associated with the supply switching unit.

Abstract: A power supplying device is provided for providing electrical power to a power receiving device, the power supplying device comprising two plates, two electrode structures being arranged to be coupled to an AC power source and at least one power transmitter. Each electrode structure is attached to one of said two plates. The power transmitter is situated in between the two plates and comprises an electrically conductive coil and at least two electrical contacts coupled to the electrically conductive coil. The plates and the power transmitter are arranged such that the power transmitter is movable in a direction parallel to the surfaces of the plates with the electrical contacts in contact with the respective two electrode structures for obtaining power from the AC power source.

Abstract: The invention relates to a current determination apparatus for determining an operational driving current for driving a light source of a group of light sources. A same color shift function defining a light color shift depending on a driving current can be provided for all light sources of the group. An operational driving current is determined based on the color shift function such that the light color (43) of the light source of the group of light sources is shifted from a nominal color, which may be specific for each light source, to a light color (45) within a target color window (41). Since for the different light sources the same color shift function can be used, a determination of individual operational driving currents such that the light sources of the group emit light having substantially the same color can be simplified.

Abstract: The present invention relates to a method for adjusting a color point (507, 509, 511) of light emitted (111) from an organic light emitting diode OLED (107) by using current (115) with a modulated waveform for driving the OLED (107), wherein the waveform is characterized by at least three different parameters, and wherein the color point (507, 509, 511) is located in a color space, the method comprising: —defining a color point target (501); —adjusting simultaneously the at least three parameters to tune the waveform such that the resulting light output of the OLED (107) is lying within a predefined area around the color point target and for which the brightness of the OLED (107) remains at a predefined level; and —employing the tuned waveform to provide the current (115) with the modulated waveform to the OLED (107).

Abstract: A power supplying device (20) is provided for providing electrical power to a power receiving device (30), the power supplying device (20) comprising two plates (22), two electrode structures (23, 43, 81, 82) being arranged to be coupled to an AC power source (41) and at least one power transmitter (21). Each electrode structure (23, 43, 81, 82) is attached to one of said two plates (22). The power transmitter (21) is situated in between the two plates (22) and comprises an electrically conductive coil (28) and at least two electrical contacts (25) coupled to the electrically conductive coil (28). The plates (22) and the power transmitter (21) are arranged such that the power transmitter (21) is movable in a direction parallel to the surfaces of the plates (22) with the electrical contacts (25) in contact with the respective two electrode structures (23, 43, 81, 82) for obtaining power from the AC power source (41).

Abstract: Disclosed are devices and related methods for optimally extending the range of light output of solid-state light sources, particularly at minimum light levels, through a power converter that includes a phase detector, a processing unit and a switch. The phase detector is configured to receive a voltage signal and to detect rising edges of waveforms of the voltage signal. The processing unit is configured to initiate a predetermined shutdown period in response to each detected rising edge. The switch is configured to provide a control signal that deactivates the power converter during the shutdown period, preventing the power converter from providing power to the solid state light unit during the shutdown period.