Opto-Electronics


Latest Articles

Ambient illuminance sensor
20 July 2011, Hi-Q Electronics
Renesas Electronics’ new PH5551A2NA1 is a digital ambient illuminance sensor that detects the brightness of ambient light and sends a corresponding signal to a device such as a microcontroller (MCU). ...

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6-channel LED driver
20 July 2011, Communica
Supertex’ HV9957 is a 6-channel LED driver that provides strong protection from faulty LED strings. It combines a switch-mode boost converter and six low dropout, linear current regulators to deliver ...

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White LEDs
6 July 2011
OSRAM Opto Semiconductors has extended its low-power LED range with the new Duris E 3 family. The small dimensions and wide beam angle of these new LEDs make them well suited for applications that require ...

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WLED drivers
6 July 2011, MB Silicon Systems
Micrel unveiled a pair of new linear WLED drivers aimed at further expanding its portfolio of lighting products. The MIC4811/MIC4812 are six-channel, constant-current sink LED drivers targeting billboard, ...

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LED for POF transmission
6 July 2011, Hamamatsu Photonics UK
Hamamatsu Photonics introduced a new RC-LED – the L10881 – to its range of LEDs. It features a high-speed response (frequency cut-off of 70 MHz typical) and a high fibre-coupled output power when coupled ...

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Constant-current LED drivers
6 July 2011, Brabek
RECOM extended its range of isolated AC/DC LED drivers with constant current output versions supplying 3 and 6 Watts. With an input voltage range of 90 to 264 a.c. the new drivers can be used worldwide. The ...

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High-output LED module
6 July 2011, Altron Arrow
Cree’s new LMR4 is an LED module delivering efficiency of 66 lumens per Watt in a fully integrated solution for downlight applications where high-quality light is essential, such as commercial, retail ...

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LED drivers for lighting
6 July 2011, NuVision Electronics
Monolithic Power Systems supplies a range of LED drivers (and associated evaluation boards) suitable for either step-down or inverting step-up/down applications. The MP248x family achieves up to 2,5 ...

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IR emitters
6 July 2011, EBV Electrolink
Vishay announced a family of infrared (IR) emitters built on a surface emitter technology that it claims enables the highest radiant intensity for this device type available on the market. The surface ...

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LED assemblies
6 July 2011, Communica
OPTEK’s OPA775 and OPA776 series LED assemblies represent a cost-effective backlighting solution for applications such as ATMs, accent lighting, under-counter lighting, media illumination and large channel ...

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LED lighting controller
22 June 2011, Future Electronics
International Rectifier introduced the IRS2548D switched mode power supply control IC for high-power LED illumination including street lighting, stadium lighting and theatrical lighting. The chip, which ...

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Pulsed over-current driving of LEDs
8 June 2011, Altron Arrow
The applications support team at Cree is often asked whether or not it is safe to operate its LEDs with pulsed currents above the maximum datasheet rating. This question is usually asked in the context ...

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IGBT drive optocoupler
8 June 2011, Hi-Q Electronics
Renesas Electronics announced the availability of an IGBT drive optocoupler product featuring an integrated insulated gate bipolar transistor (IGBT) protection function. The PS9402 comprises a gallium-aluminium-arsenide ...

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Tiny light sensors
8 June 2011, Countapulse Controls
Measuring just 23,1 x 12 x 8 mm, the Leuze BR2 sensors are considerably smaller than a matchbox. Yet, at the same time, these throughbeam photoelectric sensors, retro-reflective photoelectric sensors ...

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2-channel LED driver
25 May 2011, Communica
New from Supertex is the HV9880, a two-channel, boost LED driver with LED wire fault detection and channel-independent pulse width modulated (PWM) dimming, enabling separate LED strings to be operated ...

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16-channel LED driver
25 May 2011, NuVision Electronics
austriamicrosystems has introduced the AS1121, a 30 V, 40 mA, 16-channel LED driver with 12-bit PWM (pulse width modulation), dot correction and diagnostics. With a 30 V LED supply voltage, the device ...

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LED driver with wiring fault protection
11 May 2011, Communica
Supertex recently introduced the HV9860, a boost LED driver that is designed to optimise LED performance and extend LED life in applications such as RGB or white LED backlighting, LCD TVs and monitors, ...

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Driver for LED retrofit lamps
11 May 2011
The first in a new family of mains-operated LED lamp drivers from STMicroelectronics aims to enable designers to deliver more reliable and efficient LED retrofit lamps featuring primary-side current regulation. The ...

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OLED lighting panels
11 May 2011
OSRAM Opto Semiconductors has released two new lighting panels based on OLED (organic light emitting diode) technology. The Orbeos panels are mirrored and warm white; one is rectangular, the other one ...

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Infrared emitter
11 May 2011, EBV Electrolink
Vishay has broadened its optoelectronics portfolio with the release of a new 850 nm infrared emitter featuring a parabolic lens for a very narrow ±3° angle of half intensity. Based on a unique surface ...

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