Abstract:
The invention relates to a device for the electrical connection of at least one light source to an electric power supply device. The device is specifically employed in a lighting device for a motor vehicle, and permits the arrangement of light sources remotely from the connecting element which, in turn, can be arranged remotely from an electric power supply device of the light sources. The connecting device permits a high degree of freedom in the arrangement of light sources in relation to the device, as it casts little shadow upon the light sources, whilst ensuring the effective dissipation of heat generated thereby.
Abstract:
A cooling member for a lighting and/or signaling system for a motor vehicle comprising a base and at least one heat dissipating device with a thermal conduction link to the base, the dissipating device comprising a plurality of dissipating elements, wherein each dissipating element comprises at least one dissipating wall extending from a fixing face.The embodiments relate also to a lighting and/or signaling system and to a method for producing the cooling member.
Abstract:
A device for attenuating electromagnetic disturbances given off by at least one electronic component, arranged on a printed circuit board mounted on a first face of a board support and bearing at least one light-emitting diode driven by the at least one electronic component for the emission of light rays. A containment cage is arranged around at least the electronic component, it is formed partially by walls made of a piece with the first face and on which the printed circuit board rests, so as to delimit a wave containment zone. The containment zone has an opening, in a first direction, suitable for being blocked or not by a closure piece distinct from the walls. The invention further relates to a light module equipped with such a device, and a motor vehicle comprising a light module according to the invention.
Abstract:
A device and a method for controlling the electrical power supply of a plurality of light sources, preferably of light-emitting diodes, or LEDs. The plurality of light sources is divided into at least two groups of light sources. The invention is noteworthy in that it allows the use of a multiphase step-up voltage converter for all the groups of light sources, whereas the measurements of the input currents for each of the phases of the converter give a reliable indication of the level of power required by one of the groups being powered.
Abstract:
A support for one or more light sources for a lighting and/or light-signaling module for an automotive vehicle, comprising a substrate made of heat-conducting material, preferably made of a metal material, at least one light source of light-emitting diode type with one face for mounting on the substrate, in thermal contact with the latter and a circuit for controlling the electrical power supply of the one or more light sources. The circuit for controlling the power supply is electrically connected to the one or more light sources by means of metal wires that are soldered to the surface using the technique commonly referred to as “wire/ribbon bonding”. A method for assembling such a support.
Abstract:
A control device for controlling a plurality of sets of LEDs, especially for an automotive vehicle, the plurality of sets of LEDs comprising at least a first set that is associated with at least a first lighting and/or signaling function and a second set that is associated with at least a second and third function. The control device comprises an electrical power source able to be connected, especially in parallel, to the first set and to the second set of LEDs and to deliver at least two different electrical power levels suitable for the first and second lighting and/or signaling function, respectively, a switching module able to be connected, especially in series, with the first set of LEDs and to switch between a first position, especially an open position, in which only the second set of LEDs is supplied with electrical power, and a second position, especially a closed position, in which the first set and the second set of LEDs are supplied with electrical power simultaneously and a module for regulating electrical current able to be connected, especially in series, with the second set of LEDs and to switch between a regulating position enabling adjustment of a third electrical power level suitable for a third lighting and/or signaling function and a short-circuit position.
Abstract:
A device and a method for controlling the electrical power supply of a plurality of light sources, preferably of light-emitting diodes, or LEDs. The plurality of light sources is divided into at least two groups of light sources. The invention is noteworthy in that it allows the use of a multiphase step-up voltage converter for all the groups of light sources, whereas the measurements of the input currents for each of the phases of the converter give a reliable indication of the level of power required by one of the groups being powered.
Abstract:
A system for electrically connecting at least one light source to a system for supplying electrical power, wherein the connecting system comprises a lead frame able to be electrically connected to a system for supplying electrical power, the lead frame including at least one connecting terminal and at least one connecting means allowing the connecting terminal of the lead frame to be electrically connected to the light source, the connecting terminal and the connecting means being able to electrically connect the light source to the lead frame, thereby allowing the light source to be placed away from the lead frame.
Abstract:
A support for one or more light sources for a lighting and/or light-signaling module for an automotive vehicle, comprising a substrate made of heat-conducting material, preferably made of a metal material, at least one light source of light-emitting diode type with one face for mounting on the substrate, in thermal contact with the latter and a circuit for controlling the electrical power supply of the one or more light sources. The circuit for controlling the power supply is electrically connected to the one or more light sources by means of metal wires that are soldered to the surface using the technique commonly referred to as “wire/ribbon bonding”. A method for assembling such a support.
Abstract:
A support for light source(s) for a lighting and/or light signaling module for a motor vehicle, comprising a substrate of thermally conductive material, preferentially of metallic material, at least one light source of the light-emitting or laser diode type with a face for mounting on the substrate, in thermal contact therewith and an electrical power supply circuit for the light source or sources. The power supply circuit is linked electrically with the light source or sources by means of metal wires soldered on the surface by the technology commonly referred to by the expression “wire bonding”. The measures of the invention make it possible to define at least one reception plane for the light sources oriented in such a way as to avoid having components in the vicinity of the light sources casting shadows thereon.