Abstract: A chassis and a method of manufacturing a chassis of an information handling system are disclosed. The chassis includes a carbon-fiber composite and a plurality vents of formed in the carbon-fiber composite. Each of the plurality of vents is a channel extending through the carbon-fiber composite.

Abstract: A foldable base for counters having an “upright” position and a “folded” position, the base comprises a front panel; a first side panel hingedly connected to the front panel, the first side panel extending backwards from the front panel in the “upright” position of the base; a spacer joined to the front panel: a second side panel hingedly connected to the spacer, the second panel being opposite to the first side panel in the “upright” position of the base; and a cover that is mounted on the base in the “upright” position of the base; in the “folded” position of the base one of the side panels is placed or housed behind the front panel, while the other side panel is placed over the side panel previously placed or housed in the front panel.

Abstract: The present invention provides an improved hardware system for guiding a closure flap (200) of a furniture piece. The hardware system according to the invention comprises a damping unit (120, 122) that is embedded in an end region (100) of a hardware body (100) in the hardware body (100) or substantially parallel to an end region of a guide slot (110) in a side wall of the furniture piece. A guide pin (210a) arranged in a side region of the closure flap (200) can be brought into contact with the damping unit (120, 122) and a weight tome of the closure flap exercised via the guide pin (210a) can be applied to the damping unit (120, 122) across a damping distance when the closure flap (200) is transferred into an end position, and in, doing so exercises a counter-force on the guide pin (210a), said force being lower than the weight-force exercised by the guide pin (210a) on the damping unit (120, 122).

Abstract: The invention is a home appliance (1), particularly a refrigerator, comprising a body (10); a door (20) connected to the body (10) with a hinge (21); a transfer element (30) provided between the body (10) and the door (20); and a guiding device (40) guiding the transfer element (30) between the body (10) and the door (20); and that the guiding device (40) comprises a body element (100) fixed to the body (10); a door element (200) fixed to the door (20); and at least one bridge element (300) pivotally connected to the body element (100) and the door element (200) as compatible with the movement of the hinge (21) and guiding the transfer element (30) between the body element (100) and the door element (200).

Abstract: The invention relates to an arrangement with two locking devices which are arranged either side of a movable furniture part for locking the movable furniture part with respect to a furniture body in a locking position. Each locking device has a blocking device which prevents the locking position from being reached in a blocking position. Each locking device has a releasing means by means of which the blocking position of the blocking device associated with the other locking device can be cancelled.

Abstract: In a device for releasably connecting a furniture pullout part movably guided in a furniture carcass by means of a guide unit to the guide unit, the device including a device housing on which a control element is integrally formed and pivotably mounted via at least one solid body joint in such a way that the connection between the furniture pullout part and the guide unit can be released on actuation of the control element, at a distance from the solid body joint, supporting means are provided for supporting the control element while preventing a relative movement between this and the device housing.

Abstract: An adjustable divider assembly for a pan, drawer or other storage unit of a refrigerator is constituted by multiple, pivotally interconnected sections which can be selectively angled relative to each other and/or varied in length to establish a desired configuration for compartmentalizing the storage unit. The adjustable divider assembly can carry various spaced magnets which are attracted to a metallic property of a support surface of the storage unit to retain the divider assembly in the desired configuration.

Abstract: An LED lighting assembly may include a printed circuit board with an LED chip, and a heat sink thermally conducted with the printed circuit board, wherein the LED lighting assembly further comprises a light guide body configured as a bulb, the light guide body having an end surface as a light incidence surface of light from the LED chip, an outer surface as a light emergent surface and an inner surface, wherein the inner surface is structured so as to form a reflecting surface, reflecting at least part of light from the end surface to the outer surface.

Abstract: A lighting device may be provided that comprises: a heat sink; a light source which is disposed on the heat sink; a cover which is coupled to the heat sink and includes a dome disposed on the light source and a body supporting the dome; and a reflective plate which is disposed in the body and has an opening through which a part of light from the light source passes.

Abstract: A spark plug has a shell, an insulator, a center electrode, a ground electrode, and a firing pad. The firing pad is made of a precious metal material and is attached to the ground electrode. The firing pad has a side surface at a peripheral edge that can be flush or nearly flush with a free end surface of the ground electrode. This construction can help improve ignitability and flame kernel growth of the spark plug during a sparking event, and can provide better thermal management at the attached ground electrode and firing pad.

Abstract: A spark plug includes: a center electrode including a rod portion and a head portion and having a diameter larger than the diameter of the rod portion; an insulator having an axial bore, the center electrode being disposed in the axial bore at its front end; and a seal portion for fixing the center electrode in the axial bore. The insulator comprises: a leg portion inner circumferential surface; a cylindrical trunk portion inner circumferential surface which surrounds the head portion; and a support surface which supports the head portion. The seal portion has: a seal portion outer circumferential surface; a seal portion abutment surface; and a connecting surface. In a cross section of the seal portion, a curve, which is part of the contour of the seal portion and is included in the connecting surface, has a radius of curvature R of 0.1 mm or more.

Abstract: An ignition plug that reliably restrains generation of corona discharge for enhancing accuracy in detection of ionic current and method of manufacturing same. The ignition plug is configured such that a metallic shell and an insulator are fixed together by means of a crimped portion provided at a rear end portion of the metallic shell and bent radially inward. An electrically insulative filling member fills a space formed between the crimped portion and the insulator. The filling member covers at least a portion of an outer circumferential surface of a rear trunk portion of the insulator along the entire circumference and the entirety of a rear end surface of the metallic shell, which is a portion of the outer surface of the crimped portion and is visible from the rear side with respect to the direction of an axial line CL1.

Abstract: A radio-frequency antenna includes a linear antenna conductor, a dielectric protective pipe provided around the antenna conductor, and a deposit shield provided around the protective pipe, the deposit shield covering at least one portion of the protective pipe and having at least one opening on any line extending along the length of the antenna conductor. Although the thin-film material adheres to the surfaces of the protective pipe and the deposit shield, the deposited substance has at least one discontinuous portion in the longitudinal direction of the antenna conductor. Therefore, in the case where the thin-film material is electrically conductive, the blocking of the radio-frequency induction electric field is prevented. In the case where the thin-film material is not electrically conductive, an attenuation in the intensity of the radio-frequency induction electric field is suppressed.

Abstract: A phosphor-containing sheet having a storage modulus of 0.1 MPa or more at 25° C. and a storage modulus of less than 0.1 MPa at 100° C., wherein a resin main component of the phosphor-containing sheet is a crosslinked product formed by subjecting a crosslinkable silicone composition containing a specific composition to a hydrosilylation reaction. This phosphor-containing sheet provides a phosphor sheet having good shapability and high adhesive power as a phosphor sheet bonded to an LED chip as a wavelength conversion layer.

Abstract: A phosphorescent metal complex is provided, which comprises a metallic central atom M and at least one ligand coordinated by the metallic central atom M, wherein the one metallic central atom M and the ligand form a six-membered metallacyclic ring. Additionally specified are a radiation-emitting component comprising a metal complex, and a process for preparing the metal complex.

Abstract: A magnetron cathode comprises electron emissive material included in a cathode body and a support structure for supporting the cathode body. The support structure has a longitudinal axis and includes a first part having a first cylinder integrally formed with a first end hat and a second part having a second cylinder integrally formed with a second end hat. The first cylinder and the second cylinder have an overlapping region in the longitudinal axial direction and are joined together. The cathode body is located around the first cylinder of the first part of the support structure and is joined to the first cylinder by a brazed joint. The outer surface of the first cylinder is grooved at the brazed joint.

Abstract: A non-contact and non-disposable electric induction LED lamp includes a power source and a luminous-radiating unit combined together. The power source is formed with a power source module electrically connected with a first electric induction plate, while the luminous-radiating unit is provided with a second electric induction plate corresponding with the first electric induction plate and electrically connected with an LED module. Thus, the electricity of the power source can be transmitted to the luminous-radiating unit via electromagnetic induction produced between the first and the second electric induction plates to enable the LED module to emit light. The LED lamp of this invention can partially be replaced conveniently and has water proof and dustproof effects.

Abstract: A controlling method and its application system based on the lighting system illumination angle of the automobile synchronizing with the automotive speed, comprises the following steps: turn on the synchronizing function after received the user's instructions; read and obtain the current automotive speed, look up the prestored correspondence relationship table, find out the specific synchronous angle according to current speed grade; then control the lighting system switching to the found specific illumination angle synchronizing with current speed grade, and achieve the synchronization of illumination angles and automotive speeds. Through applying the method and the application system stated in the present invention, the best illumination effects for an automobile can be achieved. Therefore, the present invention provides a safer lighting system with a better visual effect, which provides conveniences to users.

Abstract: A method for controlling high-beam lamp state in a vehicle is disclosed. The method includes activating the high-beam lamp state of the vehicle. Further, the method includes receiving a first output signal from a high-beam sensor, the first output signal being indicative of an intensity of light from a light source facing the vehicle. The method includes receiving a second output signal from a stray light sensor, the second output signal being indicative of an intensity of stray light from a stray light source in vicinity of the vehicle. The method includes receiving a speed signal from a ground speed sensor associated with the vehicle, the speed signal being indicative of a ground speed of the vehicle. Furthermore, the method includes selectively deactivating the high-beam lamp state of the vehicle based on at least one or more of the first output signal, the second output signal, and the speed signal.

Abstract: The present invention provides a system that includes a glow discharge cell and a plasma arc torch. A first valve is connected to a wastewater source. An eductor has a first inlet, a second inlet and an outlet, wherein the first inlet is connected to the outlet of the electrically conductive cylindrical vessel, the second inlet is connected to the first valve, and the outlet is connected to the tangential inlet of the plasma arc torch. A second valve is connected between the tangential outlet of the plasma arc torch and the inlet of the glow discharge cell, such that the plasma arc torch provides the electrically conductive fluid to the glow discharge cell and the glow discharge cell provides a treated water via the outlet centered in the closed second end.

Abstract: This disclosure describes systems, methods, and apparatus for capacitively coupling energy into a plasma to ignite and sustain the plasma within a remote plasma source. The power is provided by a first electrode that at least partially surrounds or is surrounded by a second electrode. The second electrode can be grounded or floating. First and second dielectric components can be arranged to separate one or both of the electrodes from the plasma and thereby DC isolate the plasma from one or both of the electrodes.

Abstract: A light emitting diode lamp system, comprising: multiple lamps, a control module, multiple hubs and a receiver. Each of the multiple lamps includes a main body and a heat sink. The control module includes a second circuit board and multiple input units. The multiple input units include a dynamic light adjustment start key and a dynamic light adjustment stop key. Each of the multiple hubs is coupled with multiple lamps and power supply units. The receiver is coupled with multiple hubs and receives the first-light-source control signal. Therefore, through the unique design of the main body, the present disclosure can be applied on a traditional lamp, or applied with an MR16 lamp fixture, thereby the present disclosure can increase the range of application of the light emitting diode lamp and the system of the same.

Abstract: An AC LED lamp includes first and second AC power ends, a lighting module and a DC power output circuit. The lighting module has first and second ends and an LED unit. The first end is connected to the first AC power end. The LED unit has one or more LEDs. The DC power output circuit has first and second ends. The second end of the DC power output circuit is coupled to the second AC power end. The first end of the DC power output circuit is coupled to the second end of the lighting module. The DC power output circuit has a DC output side and is not directly connected to the first AC power end. The DC power output circuit has a rectifying unit and a voltage limiting and filtering unit. The rectifying unit and the voltage limiting and filtering unit are coupled to the lighting module.

Abstract: An optoelectronic semiconductor chip includes a semiconductor layer sequence having an active layer provided for generating radiation. The semiconductor chip can be operated in a first operating mode and in a second operating mode. The semiconductor layer sequence emits radiation in the first operating mode, while the semiconductor layer sequence emits no radiation in the second operating mode. The semiconductor layer sequence is operated in the forward direction in the first operating mode and in the reverse direction in the second operating mode. A display including a number of semiconductor chips of this type and a use as a motor vehicle headlight are furthermore specified.

Abstract: A light-emitting device control method is provided. The light-emitting device control method comprises the steps outlined below. A light-emitting module of a light-emitting device having light-emitting unit string each having light-emitting units connected in series is operated. One end of each light-emitting unit strings receives a same DC voltage. A voltage drop value across each current control units connected in series to at least one of the light-emitting unit strings is retrieved to further determine whether the light-emitting unit of each of the light-emitting unit strings malfunctions. When x light-emitting units of a specific string malfunction and x is larger than or equal to a malfunction threshold value p, the x malfunctioned light-emitting units are shorted and (x?p+1) light-emitting units in each of the light-emitting unit strings other than the specific string are shorted. The DC voltage received by each of the light-emitting units is decreased.

Abstract: A load driving apparatus relating to light-emitting-diodes (LEDs) is provided. In the invention, a compensation voltage on a compensation pin (CMP) of a control chip would not be changed in response to (or with) the variation (i.e. enabling and disabling) of a pulse-width-modulation (PWM) signal for dimming. In other words, the compensation voltage on the compensation pin (CMP) of the control chip would be maintained in unchanging regardless of whether the PWM signal for dimming is enabled or disabled. Therefore, an LED string at the current switching transient does not have the generation of over-shoot current.

Abstract: Disclosed are electronic control gears for LED light engines able to improve power factor by way of gearing up or down the LED current and the AC input current in response to and in synchronization with the AC input voltage. Moreover, the disclosed electronic control gears could further reduce flicker phenomenon and total harmonic distortion when used in collocation with disclosed valley fillers, filling the LED current valleys only during the dead time, and in conjunction with disclosed dummy loads, ramping up or down the AC input current only during the dead time.

Abstract: Conditioning circuits are provided for driving two or more LED groups using a rectified AC input voltage. The conditioning circuits uses analog circuitry to gradually and selectively activate the LED groups based on an instantaneous value of the rectified input voltage. The circuit includes a first series interconnection of a first LED group, a first transistor, and a first resistor, and a second series interconnection of a second LED group, a second transistor, and a second resistor. In one example, the second series interconnection is connected between a drain terminal and a source terminal of the first transistor, while in another example, the second series interconnection is connected between an anode of the first LED group and a source terminal of the first transistor. The first and second LED groups are selectively activated by the rectified voltage applied across the first series interconnection.

Abstract: In one embodiment, an LED driving circuit can include: (i) a sense circuit configured to sense an inductor voltage, and to generate a sense voltage signal; (ii) a protection control circuit configured to activate a first protection control signal in response to a comparison of the sense voltage signal against a first reference voltage to indicate an LED device is in a first load state; (iii) the protection control circuit being configured to activate a second protection control signal in response to a comparison of the sense voltage signal against a second reference voltage to indicate the LED device is in a second load state; and (iv) a PWM control circuit configured to control a power switch according to the first protection control signal or the second protection control signal, based on the load state of the LED device.

Abstract: A system includes an external light supply to a silicon photonic chip. The light supply includes a primary light source, a secondary light source, an optical coupler, an optical splitter, and a dark sensor. The optical coupler is to combine any output from the primary light source and any output from the secondary light source into an input to the silicon photonic chip. The optical splitter is located in an optical path between the primary light source and the optical coupler, and is to divert part of the output from the primary light source. The dark sensor is to receive the diverted part of the output from the primary light source and to selectively activate the secondary light source based on the diverted part of the output from the primary light source.

Abstract: A plurality of light-emitting devices (LEDs), included in at least a string, can include at least one first LED configured to emit first chromaticity light, at least one second LED configured to emit second chromaticity light, and at least one additional LED configured to emit additional chromaticity light, wherein the at least one string can be operated by modulating the first modulated LED segment and/or the at least one additional modulated LED segment based on respective specified chromaticity values of the plurality of LEDs to provide the light substantially in conformance with a Planckian locus.

Abstract: A first lighting assembly receives a lighting profile that instructs the first lighting assembly to operate according to the lighting profile over a first period of time. The received lighting profile is implemented, including causing a light of the first lighting assembly to illuminate at a first intensity. An input acquired in proximity to the first lighting assembly and indicating activity in a region proximate the first lighting assembly is received. The received lighting profile is then deviated from, in response to the received input, by increasing the intensity of the light to illuminate at a second intensity for a predetermined period of time. A message is transmitted for receipt by the control center, the message including an indication of the increased light intensity and an identifier associated with the first lighting assembly.

Abstract: A LED lighting system, such as a dimmable LED lamp, that may simulate the performance of an incandescent bulb. LED strings of different colors may be connected to the output of a single LED driver that regulates an overall intensity of light produced by the LED lighting system. The color of the LED lighting system may be controlled by circuitry, such as one or more switches, that allocates current between the LED strings to change the color temperature of light emitted by the LED lighting system as the light intensity changes.

Abstract: An light emitting diode driving circuit includes an inductor having one end receiving a pulse DC voltage input and another end forwardly-biased and electrically; a power switch connected to another end of the inductor and a first amplifier circuit; the first amplifier circuit serving for converting a first current flowing through the power switch into a first voltage; a second amplifier circuit serving for converting a second current flowing through the LED module into a second voltage; and a comparator circuit comparing the first voltage with a reference voltage; when the first voltage being smaller than the reference voltage, the power switch is conducted; otherwise it is not conducted; the comparator circuit further comparing a second voltage with the reference voltage, when the second voltage is greater than the reference voltage, the power switch is not conducted continuously; otherwise, it is conducted. Thereby, the LED module is driven.

Abstract: Control circuits and techniques are provided for use with DC-DC converters. The circuits and techniques may, in some implementations, be used with LED driver systems. In some embodiments control circuits are provided that rely on multiple different feedback paths to adjust a duty cycle of a DC-DC converter. In some embodiments, control circuits are provided that switch between multiple capacitors to provide as duty cycle control signal for use with a DC-DC converter.

Abstract: A circuit for powering of a Light Emitting Diode (LED) string has a switching power converter. A brightness control circuit is coupled to the switching power converter to allow a duration of a conductive state of the power converter to exceed a duration of a conductive state of the LED string for maintaining a current magnitude in the LED string constant.

Abstract: An electrical circuit for driving a light emitting diode (LED) string is described. The electrical circuit includes a first LED string having one or more color LED strings. A first current control transistor is coupled in series with the first LED string. A color bypass transistor may couple in parallel to one of the one or more color LED strings. A second LED string may also be coupled to the first LED string at an anode terminal of both LED strings. The second LED string may be coupled in parallel with a string bypass transistor and in series with a second current control transistor. Connection interfaces to control terminals of the first current control transistor, the color bypass transistor, the second current control transistor, and the string bypass transistor enable a control device to operate these transistors in linear mode to drive the LED strings.

Abstract: An illuminating apparatus using semiconductor light emitting elements comprising: n LED groups (n?2) which are serially connected, each being capable of radiating light in a half cycle of an AC input voltage and including a first LED of a first color temperature or a second LED of a second color temperature higher than the first color temperature, wherein, in a current flow path, a first LED group of the n LED groups includes the first LED; and a set of switches including at least one bypass switch located between the p-th LED group (1?p<n) and the (p+1)-th LED group in the current flow path for bypassing, in the ON position, a current flow to the (p+1)-th LED group, thereby enabling each of the n LED groups to radiate light in a certain interval of said half cycle.

Abstract: An LED driver circuit for controlling direct current supplied to a plurality of serially connected segments of Light Emitting Diodes (LEDs) is disclosed. In one embodiment, the LED driver circuit comprises a self-commutating circuit, which comprises a plurality of current control elements, each current control element having two ends, a first end connected to a different end of each segment along the plurality of serially connected segments of LEDs and a second end connected to a path to ground. The path to ground comprises a sense resistor and the path to ground is shared by the second end of each current control element. Each current control element is coupled to an adjacent current control element by a cross-regulation circuit and controlled by a signal from an adjacent current control element.

Abstract: A solid state lighting apparatus can include a plurality of light-emitting devices (LEDs) that are electrically coupled together in at least one string. The apparatus can further include a first LED segment that is configured to emit a first chromaticity light coupled across a first bypass circuit, a second LED segment that is configured to emit a second chromaticity light coupled across a second bypass circuit, and at least one additional LED segment that is configured to emit an additional chromaticity light coupled across a respective at least one additional bypass circuit. A control circuit can be configured to modulate the at least one additional bypass circuit, to cause the lighting apparatus to emit an additional v? shift in a chromaticity value of light emitted by the string to vary substantially in conformance with a Planckian locus in response to a dimming input to the control circuit.

Abstract: An LED driver controls current through an LED string. The LED driver generates a boosted PWM signal to drive a PWM transistor in the LED current path such that the PWM transistor maintains a substantially constant VGS, thus minimizing turn-on impedance of the PWM transistor. A current mirror circuit controls peak LED current when the PWM transistor is on. A trimming circuit includes a set of programmable switches to couple or decouple trimming transistor from the LED current path, and allowing for fine calibration of the LED current. By maintaining a low resistance and compensating for current mismatch in the LED current path, the LED driver provides efficient power performance and robustness that is particularly beneficial in high current applications.

Abstract: A method and apparatus for a boost converter topology for low battery voltage support. In the method, an input voltage is boosted by closing first through third switches and then opening a fourth switch to charge a capacitor. The first and second switches are then opened. The voltage is then doubled by closing the third and fourth switches to discharge the first capacitor into a second capacitor and charging a third capacitor. A further embodiment provides an additional method for selectively boosting an input voltage to an electronic device. The method first characterizes the efficiency of a circuit, and then determines a crossover point for a ratio of output voltage to input voltage, and then enabling or disabling a voltage boost converter based on the crossover point.

Abstract: An apparatus for driving a light emitting diode circuit (1) comprises first and second terminals (11,12) to be connected to the light emitting diode circuit (1), a capacitor (31) connected to the first and second terminals (11,12), a switch (41) for, in a conducting mode, bypassing the light emitting diode circuit (1), and a diode (51) for, in the conducting mode, preventing the capacitor (31)from being discharged via the switch (41). In this way, a reduced switch-on delay is realized without an additional switch being required for activating and deactivating said capacitor (31). The diode (51) is simpler and cheaper and more robust than such an additional switch and does not require a control. Preferably, the apparatus comprises a further terminal (13), wherein the diode (51) is connected to the further terminal (13) and to one of the first and second terminals (11,12), and the switch (41) is connected to the further terminal (13) and to the other one of the first and second terminals (11,12).

Abstract: An LED array includes three or more strings of bare LEDs mounted in close proximity to each other on a substrate. The strings of LEDs emit light of one or more wavelengths of blue, indigo and/or violet light, with peak wavelengths that are less than 490 nm. Luminescent materials deposited on each of the LED chips in the array emit light of different wavelength ranges that are of longer wavelengths than and in response to light emissions from the LED chips. A control circuit applies currents to the strings of LEDs, causing the LEDs in the strings to emit light, which causes the luminescent materials to emit light. A user interface enables users to control the currents applied by the control circuit to the strings of LEDs to achieve a Correlated Color Temperature (CCT) value and hue that are desired by users, with CIE chromaticity coordinates that lie on, or near to the black body radiation curve.

Abstract: An analog electronic circuit for driving a string of LEDs including input terminals for accepting connection to AC voltage, a current regulation circuit operatively coupled to receive an AC voltage from the input terminals and to provide an output for connection to drive the string of LEDs. Included is a current regulation circuit configured to limit the current flow through the string of LEDs on a half-cycle basis to a predetermined value. Also disclosed is an over voltage circuit configured to switch off electrical connection between the AC voltage and the string of LEDs upon the AC reaching a predetermined high voltage value on a half-cycle basis.

Abstract: The invention relates to methods of controlling operation of a resonant power converter and to controllers configured to operate according to such methods. Embodiments disclosed include a method of controlling a power output of a resonant power converter comprising first and second switches (S1, S2) connected in series between a pair of supply voltage lines, a resonant circuit connected to a node between the first and second switches and to an output connectable to an output electrical load, the resonant circuit comprising an inductor and a capacitor, the method comprising: closing the first switch (S1) to start a first conduction interval; setting a first voltage level (902); setting a first time period; and opening the first switch (S1) to end the first conduction interval when a voltage (901) across the capacitor crosses the first voltage level (902) and when a time period from closing the first switch exceeds the first time period (904).

Abstract: An apparatus to supply power to at least one gas lamp, the apparatus including a half bridge driver having a striation control circuit which determines an on time (Ton) for a cycle in accordance with a fifty percent duty cycle, the cycle having a plurality of segments and lasting for a predetermined period of time and modulates on times Ton1 and Ton2 of first and second power switches, respectively, of a half-bridge circuit in accordance with a striation control technique for each of the plurality of segments.

Abstract: A constant-current circuit apparatus for a parallel LED luminaire is disclosed. The circuit apparatus includes an electrical connector unit and one or more parallel-connected constant-current LED light module unit. The electrical connector unit includes an input unit and an output unit connected in parallel. The current from the power source flow through the input unit of the first parallel LED luminaire to its constant-current LED light modules and through its output unit to the next parallel LED luminaire connected to it. A constant-current LED light module unit includes an LED light module unit and a current regulation unit. The current regulation unit regulates the current at a constant value flow through the LED light module unit. The LED light module unit includes one or more LED cluster unit connected in series. Each LED cluster unit includes more than one LED component and a bypass diode connected in parallel.

Abstract: The invention relates to a lighting device and method, in particular underwater, including: a plurality of spotlights comprising at least one light source nude up of a set of LEDs, the spotlights being connected to an electric power source; and at least one control housing connected to said power source and communicating with each one of the spotlights, said control housing being provided with a cut-off device configured to transmit control instructions via a power cut-off member to the spotlights, which are provided with an on-board detector having a microprocessor configured such as to interpret said control instructions and to adjust a signal capable of modifying the colour of each one of the LEDs that make up the set of LEDs, characterised in that the control instructions transmitted by the cut-off device are transmitted in the form of a code made up of combinations of power cut-offs with various durations.

Abstract: A lighting system and method are provided for controlling a PWM duty cycle. The lighting system is provided with at least one device that is configured to emit light in response to receiving electrical power. The lighting system includes a power circuit and a feedback circuit. The power circuit is configured to selectively supply power to the device at a duty cycle corresponding to a first mode and a second mode, wherein the duty cycle of the first mode is less than 10% of the duty cycle of the second mode. The feedback circuit is configured to provide a feedback signal that is indicative of the energy provided to the device. The power circuit is further configured to disable power to the device during the first mode in response to the energy being greater than a threshold energy value, thereby adjusting the duty cycle.