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Lighting & Illumination

April 2019
6‑Channel, 14‑Bit, Current Output DAC with On-Chip Reference
The AD5770R is a 6-channel, 14-bit resolution, low noise, programmable current output, digital-to-analog converter (DAC) for photonics control applications. The device incorporates a 1.25 V, on-chip voltage reference, a 2.5 kΩ precision resistor for reference current generation, die temperature, output monitoring fu
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04/30/2019
Semiconductor Device Business Transfer: Panasonic to ROHM
Kyoto and Santa Clara, Calif. – April 26, 2019 –  ROHM today announced the acquisition of a part of the diode and transistor business from Panasonic Semiconductor Solutions Company, a Group Company of Panasonic Corp. The transfer is scheduled for October 2019 with ROHM handling sales of these products to Panasonic’s current customers thereafter. 1. Background and aims of this business acquisition Since the 1960s, ROHM has been developing, producing and selling semiconductor devices as a core business of the ROHM Group and has today the largest shares of the global markets for small signal transistors and diode
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04/26/2019
A Breakthrough in the Study of Laser/Plasma Interactions

Large-scale simulations demonstrate that chaos is responsible for stochastic heating of dense plasma by intense laser energy. This image shows a snapshot of electron distribution phase space (position/momentum) from the dense plasma taken from PIC simulations, illustrating the so-called "stretching and folding" mechanism responsible for the emergence of chaos in physical systems.

A new 3D particle-in-cell (PIC) simulation tool developed by researchers from Lawrence Berkeley National Laboratory and CEA Saclay is enabling cutting-edge simulations of laser/plasma coupling mechanisms that were previously out of reach of standard PIC codes used in plasma research. More detailed understanding of
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04/25/2019

Energy-Saving new LED Phosphor

The crystal structure of the SALON phosphor is the reason for its excellent luminescence properties.

Light emitting diodes or LEDs are only able to produce light of a certain colour. However, white light can be created using different colour mixing processes. "In a white LED, red and yellow-green phosphors are excited by the light from a blue diode. The particles emit light in the red and green range, an
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04/24/2019
Semiconductor Scientists Discover Effect Thought Impossible

Pictured here are homo and hetero structures.

A physical effect known as superinjection underlies modern light-emitting diodes (LEDs) and lasers. For decades this effect was believed to occur only in semiconductor heterostructures -- that is, structures composed of two or more semiconductor materials. Researchers from the Moscow Institute of Physics and Te
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04/22/2019
Radiation-Tolerant PWM Controller and GaN FET Driver
The ISL71043M single-ended current mode PWM controller and ISL71040M low-side GaN FET driver are ideal for isolated flyback and half-bridge power stages, and motor control driver circuits in satellite buses and payloads. Private ‘new space’ companies have begun launching smallsats to form large constellations
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04/18/2019
Filter ferrite bead for high frequency, high current applications
As vehicles become more complex and sophisticated and especially as a result of increased image sensing, data communication needs within vehicles have increased significantly. Multiple protocols exists including CAN, LIN, FlexRay and Ethernet and the wiring, along with the associated power cabling, has increased
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04/18/2019
MORNSUN 20W High Isolation Medical Power URH-LP-20WR3 Series
Applications: URH-LP-20WR3 can be widely used in medical equipment and medical products that have direct contact with patients.   Features: • Reinforced I/O isolation test voltage 5000VAC • Ultra-wide 4:1 input voltage range: 9~36VDC,18~75VDC • Operating ambient temperature r
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Date:
04/18/2019
RS Components introduces Siemens DIN rail power supply range
Designed for use in distributed power applications in machine control boxes or in small cabinets, the single-phase SITOP PSU6200 power supplies are slim and space-saving, with plug-in terminals that support easy electrical connection. A key feature of the series is its very low power loss across the entire loa
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04/18/2019
ROHM highlights high-performance D/A converter IC
The show will be held at the same time as HIGH END, the trade fair for audio equipment in Munich, Germany (May 09 – 11, 2019).   The increased adoption of high-resolution audio sources has strengthened the demand for high-fidelity audio equipment that can deliver an equally high sound quality. Mo
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Date:
04/18/2019
Developers of various infrared applications can be sure that the spectra of emitters and detectors match. All infrared components are available from stock any time, and free samples can be requested.   Infrared light (IR), invisible to the human eye, offers a huge number of possible applications - especial
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Date:
04/18/2019
Graphene Gives Tremendous Boost to Future Terahertz Cameras

Left) Schematic representation of the central part of the graphene-based THz photodetector device, containing the hBN-encapsulated graphene channel, on top of the narrow-gap antenna structure. By applying distinct voltages to the left and right antenna branches, a pn-junction is created in the graphene channel with unequal Seebeck coefficients on the left and right of the junction. Incident light is focused by the antenna above the gap, which is where the photoresponse is generated. (Right) Measurement of a THz focus, obtained by scanning the THz detector in the plane of the focus. The observation of several rings of the Airy pattern indicate the high sensitivity of the detector.

Detecting terahertz (THz) light is extremely useful for two main reasons: Firstly, THz technology is becoming a key element in applications regarding security (such as airport scanners), wireless data communication, and quality control, to mention just a few. However, current THz detectors have shown strong li
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Date:
04/16/2019
MORNSUN 6-16A Non-isolated POL DC/DC Converter K12T Series
The devices’ output voltage can be accurately adjustable from 0.75V to 5.0V. The 6-16A non-isolated POL DC/DC converters can supply a large high speed transient response current for high speed chips such as FPGA, DSP, ASIC to simply its system design, which are suitable for a wide range of industrial appl
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04/15/2019
Microscopic 'Traffic Cops' for Optical Communications

The photonic switch is manufactured using a technique called photolithography, in which each "light switch" structure is etched into a silicon wafer. Each light gray square on the wafer contains 6,400 of these switches.

Engineers at the University of California, Berkeley have built a new photonic switch that can control the direction of light passing through optical fibers faster and more efficiently than ever. This optical "traffic cop" could one day revolutionize how information travels through data centers and hi
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04/12/2019
TTI Now Stocking the Woodhead LED Stringlights from Molex
Fort Worth, Texas – TTI, Inc., is now stocking Woodhead LED Stringlights from Molex. Woodhead LED Stringlights are designed for temporary use and to reduce operational costs, infrastructure requirements, and maintenance costs in commercial and industrial applications. They are energy efficient and offer high-p
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Date:
04/08/2019
A Focus on Industry
It’s always a relief to get the first event of the year out of the way. As I mentioned last month, I had to travel to Embedded World in Nuremberg this past February. It was also my first event of last year, and in 2018, it took me three days to get home because of the weather. This year couldn’t have been
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04/03/2019
The Industrial Side of the House
If you weren’t fortunate enough to attend the most important power show of the year, APEC, be sure to check out our editorial that covers the wide-bandgap highlights from the ground floor in Anaheim. Meanwhile, we close out the first quarter of 2019 with a deep dive into the industrial side of the house. M
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04/03/2019
Automotive-Grade Inductor Offers Temperature to +155°C
MALVERN, Pa. — Vishay Intertechnology, Inc. expanded its offering of Automotive Grade IHLP low profile, high current inductors with a new device in the 5050 case size. The Vishay Dale IHLP-5050EZ-5A combines a high operating temperature to +155 °C with a low profile of 5 mm to save space in under the hood automoti
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04/03/2019
Blue and True Green Ultrabright LEDs in Compact Packages
MALVERN, Pa. — The Optoelectronics group of Vishay Intertechnology, Inc. has introduced a new series of blue and true green ultrabright LEDs in compact untinted surface-mount packages with dome lenses. Utilizing the latest advanced InGaN / sapphire chip technology and offering a narrow emission angle of ± 9°
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Date:
04/02/2019
Circuit Protection for Industrial Applications

Click image to enlarge

Figure 1. Reference table on voltage class requirements from the IEC61000-4-5

Industrial applications today face a serious challenge from improper circuit protection, costing money and lost time. Also, a negative brand image is often tied to system down time. Companies are better served, in terms of real dollars and perceived brand image, by avoiding product recalls. Proper circuit protect
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04/02/2019
Environmental Lights Launches StudioPro Tunable White Dimmer
San Diego, CA – Environmental Lights announced the launch of the new Tunable White StudioPro LED Dimmer. The Tunable White StudioPro LED Dimmer is a new high-quality LED controller that is specifically designed for the scenic, stage and hospitality markets. It utilizes a high PWM frequency of 23kHz to elimin
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Date:
04/01/2019