December 22, 2015 Volume 11 Issue 48

Electrical/Electronic News & Products

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AI development kit for multi-camera products

The QCS6490 Vision-AI Development Kit from Avnet enables engineering teams to rapidly prototype hardware, application software, and AI enablement for multi-camera, high-performance, Edge AI-enabled custom embedded products. The kit facilitates design with the new, energy-efficient MSC SM2S-QCS6490 SMARC compute module based on the Qualcomm QCS6490 processor. Provides support for up to four MIPI CSI cameras and concurrent Mini DisplayPort and MIPI DSI displays.
Learn more.


High-temp cabinet cooler keeps incineration process in business

An EXAIR client company handles waste treatment on a large ship by operating an incinerator. The area where the incinerator is located gets very hot (over 120° F). This causes failures in the electronics package used to control the incineration process. Since compressed air is readily available, EXAIR's Model HT4225 Cabinet Cooler System is being used to keep the panel cool. It saved the customer from having to replace their control units due to the hot conditions in the incinerator room. Thermostat control is also available, conserving air and operating only when needed to minimize air consumption.
Learn about EXAIR's huge selection of Cabinet Coolers.


Compact snap-in capacitors for general-purpose applications

TDK's new EPCOS B43659 series of snap-in aluminum electrolytic capacitors is the next generation of ultra-compact, general-purpose components for voltages of 450 V (DC) featuring an extremely high CV product. It provides the same features and serves the same applications as the previous series but is much more compact. These RoHS-compliant capacitors can be used in a wide range of applications, such as switched-mode power supplies, frequency converters, UPS, medical equipment, and solar inverters.
Get all the specs.


Conductive Brush Ring overcomes current leakage in EV powertrains

SKF's new Conductive Brush Ring paves the way to greater reliability and longer life in high-performance electric vehicle powertrain systems. Using pure carbon fiber bristles, it provides a reliable electrical connection between an EV eAxle rotor shaft and its housing. When used in combination with SKF Hybrid ceramic ball bearings, it helps to alleviate parasitic current effects that can lead to premature failure in bearings and other components. Available in different configurations for wet (oil-lubricated) motor designs -- and soon for dry (sealed) applications.
Learn more.


Intro to reed switches, magnets, magnetic fields

This brief introductory video on the DigiKey site offers tips for engineers designing with reed switches. Dr. Stephen Day, Ph.D. from Coto Technology gives a solid overview on reed switches -- complete with real-world application examples -- and a detailed explanation of how they react to magnetic fields.
View the video.


Bi-color LEDs to light up your designs

Created with engineers and OEMs in mind, SpectraBright Series SMD RGB and Bi-Color LEDs from Visual Communi-cations Company (VCC) deliver efficiency, design flexibility, and control for devices in a range of industries, including mil-aero, automated guided vehicles, EV charging stations, industrial, telecom, IoT/smart home, and medical. These 50,000-hr bi-color and RGB options save money and space on the HMI, communicating two or three operating modes in a single component.
Learn more.


All about slip rings: How they work and their uses

Rotary Systems has put together a really nice basic primer on slip rings -- electrical collectors that carry a current from a stationary wire into a rotating device. Common uses are for power, proximity switches, strain gauges, video, and Ethernet signal transmission. This introduction also covers how to specify, assembly types, and interface requirements. Rotary Systems also manufactures rotary unions for fluid applications.
Read the overview.


Seifert thermoelectric coolers from AutomationDirect

Automation-Direct has added new high-quality and efficient stainless steel Seifert 340 BTU/H thermoelectric coolers with 120-V and 230-V power options. Thermoelectric coolers from Seifert use the Peltier Effect to create a temperature difference between the internal and ambient heat sinks, making internal air cooler while dissipating heat into the external environment. Fans assist the convective heat transfer from the heat sinks, which are optimized for maximum flow.
Learn more.


EMI shielding honeycomb air vent panel design

Learn from the engineering experts at Parker how honeycomb air vent panels are used to help cool electronics with airflow while maintaining electromagnetic interference (EMI) shielding. Topics include: design features, cell size and thickness, platings and coatings, and a stacked design called OMNI CELL construction. These vents can be incorporated into enclosures where EMI radiation and susceptibility is a concern or where heat dissipation is necessary. Lots of good info.
Read the Parker blog.


What is 3D-MID? Molded parts with integrated electronics from HARTING

3D-MID (three-dimensional mechatronic integrated devices) technology combines electronic and mechanical functionalities into a single, 3D component. It replaces the traditional printed circuit board and opens up many new opportunities. It takes injection-molded parts and uses laser-direct structuring to etch areas of conductor structures, which are filled with a copper plating process to create very precise electronic circuits. HARTING, the technology's developer, says it's "Like a PCB, but 3D." Tons of possibilities.
View the video.


Loss-free conversion of 3D/CAD data

CT CoreTech-nologie has further developed its state-of-the-art CAD converter 3D_Evolution and is now introducing native interfaces for reading Solidedge and writing Nx and Solidworks files. It supports a wide range of formats such as Catia, Nx, Creo, Solidworks, Solidedge, Inventor, Step, and Jt, facilitating smooth interoperability between different systems and collaboration for engineers and designers in development environments with different CAD systems.
Learn more.


Top 5 reasons for solder joint failure

Solder joint reliability is often a pain point in the design of an electronic system. According to Tyler Ferris at ANSYS, a wide variety of factors affect joint reliability, and any one of them can drastically reduce joint lifetime. Properly identifying and mitigating potential causes during the design and manufacturing process can prevent costly and difficult-to-solve problems later in a product lifecycle.
Read this informative ANSYS blog.


Advanced overtemp detection for EV battery packs

Littelfuse has introduced TTape, a ground-breaking over-temperature detection platform designed to transform the management of Li-ion battery systems. TTape helps vehicle systems monitor and manage premature cell aging effectively while reducing the risks associated with thermal runaway incidents. This solution is ideally suited for a wide range of applications, including automotive EV/HEVs, commercial vehicles, and energy storage systems.
Learn more.


Benchtop ionizer for hands-free static elimination

EXAIR's Varistat Benchtop Ionizer is the latest solution for neutralizing static on charged surfaces in industrial settings. Using ionizing technology, the Varistat provides a hands-free solution that requires no compressed air. Easily mounted on benchtops or machines, it is manually adjustable and perfect for processes needing comprehensive coverage such as part assembly, web cleaning, printing, and more.
Learn more.


LED light bars from AutomationDirect

Automation-Direct adds CCEA TRACK-ALPHA-PRO series LED light bars to expand their offering of industrial LED fixtures. Their rugged industrial-grade anodized aluminum construction makes TRACKALPHA-PRO ideal for use with medium to large-size industrial machine tools and for use in wet environments. These 120 VAC-rated, high-power LED lights provide intense, uniform lighting, with up to a 4,600-lumen output (100 lumens per watt). They come with a standard bracket mount that allows for angle adjustments. Optional TACLIP mounts (sold separately) provide for extra sturdy, vibration-resistant installations.
Learn more.


Demand for quantum dots projected to increase 20-fold over next decade

By Dr. Guillaume Chansin, Senior Technology Analyst, IDTechEx

Ever since Sony launched the first television with quantum dots in 2013, these highly engineered materials have been in the spotlight. In the new report "Quantum Dots 2016-2026: Applications, Markets, Manufacturers," IDTechEx Research forecasts that shipment of quantum dots will increase significantly in the next 10 years.

Quantum dots are nanocrystals of semiconductor. What makes them so attractive is that their optical properties can be tailored for various applications. Inside a TV, they help deliver colors that are more faithful to the original image.

It took a long time for quantum dots to reach large-scale commercialization. The first startup, Quantum Dot Corporation, was founded in 1998 to develop new bio-molecular markers. The idea was to use quantum dots to replace the fluorescent tags often used in life science. When the company was acquired in 2005 by Invitrogen (which is now part of Thermo Fisher), it looked as if quantum dots were ready for the big time. However, they never became mainstream in life science, due in part to the fact that they were very expensive. Today, quantum dots are used in research labs to develop advanced sample imaging.

Other companies believed quantum dots were the ideal materials to improve colors in display and lighting. In 2009, Nexxus Lighting commercialized the first LED light bulb with quantum dots. But the world was not ready to switch to LED lighting, and the product was quickly discontinued. The future of quantum dots looked uncertain, so when Sony adopted the technology in their LCD TV it gave a strong confidence boost to the industry.

There are now several models of TVs and monitors based on quantum dots on the market. Most notably, Samsung has bet big on quantum dots to compete against the OLED (organic light-emitting diode) TVs from rival LG.

Fig 1. Samsung is heavily promoting a range of top-end TVs made with quantum dots. [Photo source: G. Chansin].

 

 

Applications in display panels are now driving the sales of quantum dot materials. According to the IDTechEx forecast, demand for quantum dots will grow from less than 100 kg in 2015 to over 2 metric tons in 2026, which is more than a 20-fold increase. Components for LCDs will remain the biggest market segment, but other applications will emerge, such as quantum dot LED (QLED), photovoltaic, and sensors.

QLED is a promising technology that uses quantum dots as electroluminescent materials, in much the same way as OLED. However, it will take several years for this technology to be commercialized. Applications in image sensors may come to market much faster. A company called InVisage has developed a way to deposit quantum dots on a silicon chip to make hybrid CMOS image sensors. The start-up company recently announced their first product, a 13-megapixel image sensor for mobile devices.

The difference between OLED and quantum dot (QD) technology
According to LG, "Since LCD cannot emit light itself, it needs a light source such as the backlight. An LCD with an LED backlight uses RGB colors (red, green, and blue) to produce white. The latest-technology LED LCD uses blue LEDs, coated with a yellow phosphor, to create white light.

"Quantum dot (QD) TV is an improved version of this. Instead of using blue LEDs with yellow phosphor, it uses QD particles to create white. Quantum dot technology absorbs blue light and transfers it to red and green to create white color. Through this process, it can produce accurate colors.

"An OLED display is a display comprised of an organic compound that emits light in response to an electric current. Each pixel can emit light itself, so it does not have a problem of light from the backlight leaking through the display. Hence, OLED is very different from QD."

More insights
In "Quantum Dots 2016-2026: Applications, Markets, Manufacturers," IDTechEx Research finds that the market for quantum dot devices and components will grow to over $11 billion by 2026.

Fig 2. Quantum dots will enable a market worth $11 billion by 2026. Source: IDTechEx Research report www.IDTechEx.com/qd.

 

 

For comprehensive analysis of quantum dots, their applications, industry players, and market forecasts, see www.IDTechEx.com/qd.

Source: IDTechEx

Published December 2015

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