Osram Gmbh

Infineon Technologies Ag

Infineon Technologies Austria Ag

Osram Ag

Osram S.p.a. - Societa' Riunite Osram Edison Clerici

Simone Massaro

Alberto Alfier

Simon Bobbo

Alberto Zanotto

Marco Piselli

Matteo Toscan

Lorenzo-Roberto Trevisanello

Michael Lenz

Cristian Garbossa

Emanuele Bodano

Alessio Griffoni

Lorenzo Baldo

Dina Pasqualini

Luca Volpato

Marco Munarin

Martin Reiss

Dusan Graovac

Andrea Vecchiato

Thomas Rieger

Roberto Didone′

Maurizio Inversi

Marco Puerschel

Roberto Didone'

Andrea Morra

A lighting device includes an elongated support member, a plurality of light sources, at least one electrically conductive layer for interconnecting the light sources, and covering layer provided over the light source and conductive layer, the covering layer having discontinuities defining a marker array for cutting to length the lighting device.

Elongated lighting device with marks for cutting to length and method

A lighting device may be produced by providing a protected elongate light emitting module, including a substrate with at least one electrically-powered light radiation source, and at least one sealing mass protecting light radiation source(s), and by coupling to said light emitting module a channel-shaped cover member with a body portion including light permeable material and side portions, with the side portions of the cover member embracing and locking therebetween the light emitting module and with light radiation source(s) facing towards body portion of cover member, whereby the light permeable material provides a propagation path for the light radiation from light radiation source(s).

Method of producing lighting devices and corresponding lighting device

A lighting device, such as for example a LED flexible module, includes an elongated profiled body having a mouth portion, a first and a second lateral sides arranged sidewise of the mouth portion and a web side opposed the mouth portion. The profiled body includes a light-permeable portion, extending between the mouth portion and the first lateral side, and a light-impermeable portion extending between the second lateral side and the web side. A light radiation source assembly including a support member with one or more electrically powered light radiation sources is arranged at the mouth portion with the light radiation source(s) facing the light-permeable portion, whereby light radiation is directed towards the first lateral side for emission from the lighting device.

Lighting device and corresponding method

A lighting module includes a ribbon-like containment body with a web wall having a first and a second face opposite to each other and a pair of side walls extending sidewise of the first face of the web wall to define a channel-like shape of the containment body, a ribbon-like mounting board for mounting light radiation sources, the mounting board being arranged in the channel-like shape of the containment body with a mounting surface facing away from the first face of the web wall of the containment body, and a light radiation source mounted on the mounting surface of the board for projecting light radiation from the channel-like shape of the containment body. The lighting module includes a pair of hook-like profiles protruding from and along the second face of the web wall of the containment body to permit mounting of the lighting module by hooking to a mounting element.

Method of installing at least one lighting module

A drive circuit includes a first input terminal configured to receive a first input signal, a first output terminal configured to provide a first drive signal, a second output terminal configured to provide a second drive signal, and a mode selection terminal configured to have a mode selection element connected thereto. The drive circuit is configured to generate the first and second drive signals dependent on the first input signal such that there is a dead time between a time when one of the first and second drive signals assumes an off-level and a time when the other one of the first and second drive signals assumes an on-level, and evaluate at least one electrical parameter of the mode selection element and is configured to adjust a first signal range of the first drive signal and a second signal range of the second drive signal dependent on the evaluated parameter and to adjust the dead time dependent on the evaluated parameter.

Drive circuit with adjustable dead time

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.

A circuit for driving a plurality of light sources via a current generator, wherein the light sources are grouped into a plurality of light source sets wherein the driver circuit comprises a plurality of inductive elements, a plurality of switches adapted to selectively connect each light source set in series with one of the inductive elements, and a control circuit configured for driving the switches, so that during a first operation time interval, each light source set is connected in series with a respective first inductive element, and during a second operation time interval, each light source set is connected in series with a respective second inductive element, wherein the respective second inductive element is separate from the respective first inductive element.

Circuit and method for driving light sources and lighting system

Preferred embodiments of the present invention are a switching converter, an integrated circuit package, and method for controlling a switching converter. An embodiment of the invention is a switching converter comprising a first compensation network having a first node coupled to an error voltage and a second node coupled to electrical ground and a second compensation network having an input coupled to the error voltage. A frequency domain transfer function of the first compensation network comprises a first zero and a plurality of first poles, and a frequency domain transfer function of the second compensation network comprises a second zero and a second pole.

Switching converter and method to control a switching converter

Growing community of inventors

Venice, Italy

Simone Massaro