Новини світу мікро- та наноелектроніки

During Day 2 of APEC 2024, Power Electronics News editor-in-chief Maurizio Di Paolo Emilio and EDN editor-in-chief Majeed Ahmad underscored the significance of silicon and silicon carbide technologies alongside passive components, gallium nitride advancements, and the promising outlook of fusion energy. ADI introduced a gate driver tailored for GaN FETs, while Infineon and Qorvo exhibited diverse, SiC-based solutions. SemiQ also made substantial investments in SiC, unveiling 1,200-V MOSFETs.

The post APEC 2024, Day 2: Daily Briefing Video appeared first on EDN.

At the Applied Power Electronics Conference (APEC), Infineon Technologies introduced a new product family of Solid-State Isolators to achieve faster and more reliable circuit switching with protection features not available in optical-based solid-state relays (SSR). The isolators use coreless transformer technology and support 20 times greater energy transfer with both current and temperature protection contributing to a higher reliability and lower cost of ownership. The new solid-state isolators allow driving the gates of Infineon’s MOS-controlled power transistors OptiMOS and CoolMOS to reduce power dissipation of up to 70 per cent of today’s solid-state relays using SCR (silicon-controlled rectifier) and Triac switches.

Infineon’s solid-state isolators enable custom solid-state relays capable of controlling loads
more than 1000 V and 100 A. Improved performance and reliability make coreless transformer technology ideal for applications in advanced battery management, energy
storage, renewable energy systems, as well as industrial and building automation system
applications. With Infineon’s solid-state isolator drivers, engineers can further improve the
efficiency of electronic and electromechanical systems.

“Implementing coreless transformers in solid-state isolators and relays is truly a game
changer for power engineers; it provides 50 times lower RDS(on) than existing optically
controlled solutions. This enables their use in higher-voltage and higher-power
applications,” said Davide Giacomini, Marketing Director for the Green Industrial Power
Division at Infineon Technologies.

When matched with Infineon’s CoolMOS S7 switch, the isolator drivers enable switching
designs with a much lower resistance compared to optically driven solid-state solutions.
This translates to longer lifespans and lower cost of ownership in system designs. As with
all-solid-state isolators, the devices also offer superior performance compared to electromagnetic relays, including 40 per cent lower turn-on power and increased reliability
due to the elimination of moving parts.

The family of devices is designed to be compatible with Infineon’s broad switching portfolio
including Infineon’s CoolMOS S7, OptiMOSTM and linear FET portfolios.

The post Infineon introduces new Solid-State Isolators to deliver faster switching with up to 70 percent lower power dissipation appeared first on ELE Times.

For coverage of all the key business and technology developments in compound semiconductors and advanced silicon materials and devices over the last month...

Qorvo Inc of Greensboro, NC, USA (which provides core technologies and RF solutions for mobile, infrastructure and defense applications) has announced four 1200V silicon carbide (SiC) modules in a compact E1B package with low on-resistance RDS(on), namely the 19mΩ, 50A UHB50SC12E1BC3N and 9.4mΩ, 100A UHB100SC12E1BC3N half-bridge modules and the 70mΩ, 15A UFB15C12E1BC3N and 35mΩ, 25A UFB25SC12E1BC3N full-bridge modules. The highly efficient SiC modules are suitable for electric vehicle (EV) charging stations, energy storage, industrial power supplies and solar power applications...

Author: Anuj Rajain, CEO at Soteria

When you think of “security,” what comes to mind? Cameras? Bodyguards? Surveillance systems? In ensuring security, the initial requirement is surveillance systems. A fundamental surveillance system records videos and audio from a specific location. To enhance the proactive and effective nature of this security system, human intelligence is essential. Human intelligence is a central factor that accelerates the process of monitoring and detecting crimes. Human intelligence and video analytics complement each other, reaching their full potential only through their coexistence.

Anuj Rajain, CEO at Soteria

Consider a scenario where surveillance systems operate without the incorporation of human intelligence, a system designed solely to monitor a location, lacking the human element to determine whether a situation involves detecting a criminal act or not. Video analytics currently lacks the sophistication to discern whether an act captured on video is criminal, suspicious, or benign. Consider a home surveillance system, particularly one in the garage. The video analytics in place struggles to differentiate between a person simply walking by and someone with criminal intent, such as attempting to steal a car. Relying solely on AI in such situations may result in numerous false alarms, raising concerns about the trustworthiness and reliability of surveillance systems. To address this issue, an understanding of human emotions and the ability to differentiate between various actions are crucial. This emphasizes the necessity of incorporating human insight to navigate the limitations of current video analytics and ensure the accurate interpretation of events.

If we focus solely on the reliance on human intelligence for maintaining and overseeing security, it becomes evident that this approach alone is not feasible. The absence of security cameras or a surveillance system would result in a chaotic environment, providing an opportunity for more criminal acts to be committed. Human intelligence, while essential, cannot cover all angles and monitor every inch of space continuously. Security cameras and surveillance systems play a crucial role in providing a comprehensive and continuous watchful eye over a location. They act as force multipliers, extending the reach of human intelligence and enhancing the overall effectiveness of security measures. Without these technological tools, security efforts would face significant limitations, making it challenging to prevent and respond to criminal activities in a timely and efficient manner. Therefore, the integration of both human intelligence and advanced surveillance technologies is essential for creating a robust and comprehensive security infrastructure.

The landscape of security camera technology is continuously advancing, becoming not only more efficient but also more effective and cost-effective. The integration of innovative security technologies, coupled with human intelligence, introduces multiple layers of security for enhanced protection. Businesses that invest in surveillance cameras featuring remote monitoring capabilities stand to reap significant benefits. Beyond the traditional security aspect, such systems contribute to increased productivity and an enhanced customer experience. The constant evolution of security camera technology ensures that companies can stay ahead in safeguarding their assets, premises, and personnel. This investment not only strengthens security measures but also proves to be a strategic move, optimizing operational efficiency and positively impacting the overall profitability of the business.

To sum up, it’s crucial to have both human intelligence and advanced surveillance technology working together for strong security. Surveillance systems keep a constant watch, but human understanding is necessary for tricky situations. As security cameras get better, they become more efficient and cost-effective, giving businesses complete solutions. Using both these aspects not only protects assets but also makes operations smoother and improves customer experiences. In today’s changing security landscape, businesses need to integrate human intelligence and the latest surveillance tech to stay ahead and maintain a safe and successful environment.

The post How Human Intelligence and Video Analytics Level up Security appeared first on ELE Times.

In today’s rapidly evolving technological landscape, one term seems to be on everyone’s lips: machine learning. From improving search engine results to predicting customer behaviour, machine learning is transforming industries and reshaping the way we interact with technology. Let’s delve into what machine learning is, its history, types, workings, applications, examples, advantages, disadvantages, and the promising future it holds.

What is Machine Learning?

At its core, machine learning is a subset of artificial intelligence (AI) that enables computers to learn and improve from experience without being explicitly programmed. It’s like teaching a computer to recognize patterns and make decisions based on data, rather than relying on pre-defined rules.

Machine Learning History

The concept of machine learning dates back to the 1950s when pioneers like Arthur Samuel began experimenting with algorithms that could improve their performance over time. Since then, the field has seen exponential growth, fueled by advancements in computing power and the availability of vast amounts of data.

Types of Machine Learning

Machine learning can be broadly categorized into three types: supervised learning, unsupervised learning, and reinforcement learning. Supervised learning involves training a model on labeled data, unsupervised learning deals with unlabeled data to find hidden patterns, and reinforcement learning focuses on training models to make sequential decisions through trial and error.

How Does Machine Learning Work?

Machine learning algorithms work by analyzing data, identifying patterns, and making predictions or decisions based on those patterns. These algorithms learn from historical data to improve their performance over time, making them more accurate and effective.

Machine Learning Applications

Machine learning finds applications across various industries, including healthcare (diagnosis and treatment planning), finance (fraud detection and stock market analysis), marketing (customer segmentation and personalized recommendations), and many more.

Machine Learning Examples

Some prominent examples of machine learning in action include recommendation systems like those used by Netflix and Amazon, natural language processing applications like virtual assistants Siri and Alexa, image recognition technologies used in autonomous vehicles, and predictive analytics tools used in healthcare to forecast disease outbreaks.

Machine Learning Advantages

One of the main advantages of machine learning is its ability to process large amounts of data quickly and accurately, leading to more informed decision-making. It also has the potential to automate repetitive tasks, improve efficiency, and uncover insights that humans might overlook.

Machine Learning Disadvantages

However, machine learning is not without its limitations. One major challenge is the need for high-quality, labeled data for training models, which can be time-consuming and expensive to obtain. Additionally, there are concerns surrounding privacy, bias, and ethics, as machine learning algorithms can sometimes perpetuate or even amplify existing societal biases present in the data.

Future of Machine Learning

Despite its challenges, the future of machine learning looks incredibly promising. Advancements in areas like deep learning, reinforcement learning, and quantum computing are poised to take machine learning to new heights, enabling even more sophisticated applications across diverse domains.

In conclusion, machine learning represents a groundbreaking technology that is reshaping our world in profound ways. From revolutionizing industries to enhancing everyday experiences, its impact is undeniable. As we continue to push the boundaries of what is possible with machine learning, the opportunities for innovation and growth are limitless. So, let’s embrace this exciting journey into the future of intelligent machines and the endless possibilities they bring.

The post Machine Learning: A Simple Guide to the Future appeared first on ELE Times.

Author: Pankaj Raut, CEO and Co-founder at Ajna Lens

As we soar into a new era of technological advancement, the world finds itself on the cusp of a transformation with Extended Reality (XR).

Pankaj Raut CEO and Co-founder of Ajna Lens

Statistics paints a compelling picture: The global XR market is expected to reach a staggering $1,134.79 billion by 2030, with a phenomenal growth rate. While still nascent, XR holds the potential to reshape every aspect of Aerospace & Defence (A&D) from design and training to maintenance and operations.

For instance, try to imagine pilots undergoing hyper-realistic, multi-sensory flight simulations in virtual battlefields, honing their skills in controlled environments that replicate G-forces, turbulence and even enemy encounters. Ground crew wearing AR glasses remotely collaborating with specialists across continents, troubleshooting glitches in real-time with the aid of shared, interactive XR experiences.

Imagine dissecting a complex rocket engine, guided by interactive overlays highlighting potential issues before launch. Or picture yourself collaborating with colleagues across continents in a holographic workspace, designing the next-generation aircraft. Extended Reality (XR) is poised to revolutionise not just science fiction, but the very core of A&D.

From Blueprints to Holographic Workspaces

Gone are the days of clunky headsets and pixelated screens. Think of all the innovation waiting in the wings to completely enhance the design and prototyping. The aerospace industry thrives on innovation, but traditional physical prototyping can be expensive and time-consuming. XR offers a game-changer. Imagine engineers interacting with 3D models in real-time, manipulating them in virtual space, and identifying design flaws or optimising performance virtually before expensive physical prototypes are built. Studies by Deloitte show that XR design tools can reduce prototyping costs by up to 70%, leading to faster innovation cycles and a competitive edge.

Revolutionising Training with Immersive Simulations

Piloting a multi-million dollar aircraft or performing intricate maintenance tasks require meticulous training. Traditional methods often lack the nuance and realism needed to fully prepare personnel for real-world scenarios. XR creates immersive simulations that replicate real-world scenarios with unparalleled fidelity, incorporating factors like G-force, turbulence and even simulated enemy encounters.

A study by the Air Force Research Lab found that pilots trained with VR flight simulators showed a 40% reduction in training time and a 30% improvement in mission performance compared to traditional methods. This translates to safer missions, reduced costs and improved operational readiness.

Streamlining Maintenance with Augmented Guidance

Downtime due to equipment failure is costly and can compromise mission success. With XR, technicians can wear AR glasses, receive real-time instructions and overlay critical information onto physical equipment. This remote collaboration and augmented guidance enables faster, more accurate repairs. A study by Boeing found that using AR for maintenance tasks reduced overall repair time by 30% and improved first-time fix rates by 20%. This translates to minimising downtime, optimising resource allocation and improving operational efficiency.

Logistics Transformed with Enhanced Precision

On top of all this, the A&D industry’s complex supply chains demand precision and efficiency, where AR can transform logistics and operations, through real-time inventory tracking, visualised warehouse layouts, and efficient picking and packing processes. Imagine technicians wearing AR glasses, guided through warehouses with inventory locations highlighted and picking routes optimised. This translates to faster deliveries, reduced errors and optimised resource allocation.

Challenges on the Horizon

Despite the potential, challenges linger. Cost and accessibility of technology, privacy concerns and the need for robust cybersecurity measures are valid hurdles. Additionally, integrating XR seamlessly into existing workflows and infrastructure requires careful planning and collaboration. Addressing these challenges requires a collaborative effort from industry leaders, policymakers and technology developers.

Partnerships Fueling Innovation

The Indian government recognizes the transformative potential of XR and is actively fostering its adoption in A&D. Ergo, the government allocated ₹475 crore (US$64 million) for the iDEX program in the 2023-24 budget, highlighting its commitment to fostering innovation in defence. Initiatives like Innovations for Defence Excellence (iDEX) serve as collaborative platforms, bridging the gap between startups and defence forces.

This not only fast-tracks the infusion of innovative technologies into our nation’s defence capabilities but also empowers startups by offering financial backing, mentorship and resources. Additionally, the Make in India initiative promotes indigenous manufacturing, reducing external dependency and encouraging self-reliance. As of March 2023, the “Make in India” initiative has attracted foreign direct investment (FDI) worth ₹83,572 crore (US$111.9 billion) in the defence sector. Agile and innovative startups play a pivotal role in this journey, contributing to the development of cutting-edge defence technologies and products tailored to specific needs.

The Future is Immersive

The mass adoption of XR in A&D is not a question of “if,” but “when.” By embracing this transformative technology, we can ensure safer operations, more efficient training and accelerated innovation. The multiple collaborating initiatives with A&D professionals in the Indian government and the XR startups around the country hints towards the skies of the future – a future painted in the vivid colours of Extended Reality.

The post Outlook on the Mass Adoption of XR appeared first on ELE Times.

I have to test all sorts of strange things at work. They all require some sort of oddball connection. Every time I need to make something odd connect this is where I start looking. submitted by /u/Peterthinking [link] [comments]

In the fast-paced world of automation and logistics, Automated Guided Vehicles (AGVs) have become indispensable assets, streamlining operations with their precision and efficiency. At the heart of these marvels of modern engineering are their battery charging systems, a critical component that ensures their reliability and longevity. This article delves into the intricacies of AGV battery charging systems, offering insights into their types, maintenance, and future trends.

AGVs have revolutionized industries by providing automated material handling solutions, but their operational efficacy hinges on the health and efficiency of their battery charging systems. These systems not only power the AGVs but also significantly impact their operational uptime and lifecycle. Understanding the nuances of battery charging is crucial for maximizing the performance and lifespan of AGVs.

Understanding AGV Battery Types

AGVs employ various battery types, each with unique characteristics and suitability for different applications. The most common include lead-acid, lithium-ion, and nickel-metal hydride batteries.

Lead-Acid Batteries: Known for their cost-effectiveness and reliability.

Lithium-Ion Batteries: Praised for their high energy density and long lifespan.

Nickel-Metal Hydride Batteries: Valued for their environmental friendliness and decent energy density.

How to Choose the Right Battery for Your AGV?

Selecting the appropriate battery involves considering the specific needs of your AGV, such as its operational environment, required charging speed, and application. Factors like temperature tolerance, energy requirements, and lifecycle costs should guide this decision-making process.

Basics of AGV Battery Charging

The charging process is pivotal in extending the life of AGV batteries. It typically involves several stages, including bulk charging, absorption, and float stages, each playing a vital role in maintaining battery health.

What Are the Different Charging Technologies for AGVs?

AGV battery charging technologies vary, each with its advantages and limitations.

Standard Charging: The most common, requiring several hours to complete.

Opportunity Charging: Allows for charging at various points, reducing downtime.

Fast Charging: Minimizes charging time, ideal for operations running 24/7.

Inductive Charging: Offers wireless charging, enhancing operational flexibility.

How Does Inductive Charging Work for AGVs?

Inductive charging utilizes electromagnetic fields to transfer energy between two objects, eliminating the need for physical connectors. This technology not only reduces wear and tear but also allows for more flexible AGV operation.

Setting Up an Efficient AGV Battery Charging Station

An optimal charging station layout is crucial for maximizing efficiency and extending battery life. Considerations include ensuring ample space, easy accessibility, and adhering to safety standards.

What Are the Key Components of an AGV Battery Charging System?

Charging Docks: Where AGVs dock for charging.

Power Supply Units: Convert AC power to a suitable form for battery charging.

Battery Management Systems (BMS): Monitor battery health and optimize charging.

Safety Equipment: Ensures the charging process is safe for both operators and equipment.

Best Practices for AGV Battery Maintenance

Maintaining AGV batteries involves regular inspections, cleaning, and performance monitoring. These practices help in identifying potential issues before they escalate into significant problems.

How to Monitor AGV Battery Health?

Monitoring tools and techniques, such as software applications and diagnostic tests, play a crucial role in tracking battery usage, charge cycles, and overall health.

The Role of Battery Management Systems (BMS) in AGV Battery Health

BMS are critical in protecting batteries from overcharging, deep discharging, and overheating, thereby optimizing their performance and lifespan.

Troubleshooting Common AGV Battery Charging Issues

Identifying and addressing common issues such as incomplete charging, overheating, and connectivity problems can significantly improve AGV operational efficiency.

How to Safely Handle AGV Battery Failures?

Handling battery failures involves following established emergency procedures and ensuring proper disposal or recycling of batteries to prevent environmental harm and safety risks.

Innovations and Future Trends in AGV Battery Charging

The landscape of AGV battery charging is evolving, with advancements such as solar charging, wireless power transfer, and smart charging systems poised to redefine AGV operations.

The Impact of IoT and Smart Technologies on AGV Battery Management

IoT and smart technologies are revolutionizing AGV battery management, enabling real-time monitoring, predictive maintenance, and enhanced operational efficiency.

Conclusion

The evolution of AGV battery charging systems is a testament to the relentless pursuit of efficiency and sustainability in the realm of automated logistics. By understanding the principles outlined in this guide, organizations can ensure their AGVs operate at peak performance, paving the way for a more automated and efficient future. As technology advances, staying abreast of the latest trends and best practices in AGV battery maintenance and charging will be paramount in harnessing the full potential of these robotic workhorses.

The post Powering the Future: A Comprehensive Guide to AGV Battery Charging Systems appeared first on Electronics Lovers ~ Technology We Love.

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Infineon Technologies AG of Munich, Germany has launched the 750V G1 discrete CoolSiC MOSFET to meet the increasing demand for higher efficiency and power density in industrial and automotive power applications...

Scintil Photonics of Grenoble, France and Toronto, Canada, a fabless developer of augmented silicon photonic integrated circuits (integrated laser arrays, 800Gb/s transmitters and receivers, tunable transmitters and receivers, as well as optical I/O for near-chip and chip-chip communication), has announced the integration of III-V distributed feedback (DFB) lasers and amplifiers with standard silicon photonics technology in production at foundry Tower Semiconductor, marking a pivotal step in its supply chain...

Fabless design company Ancora Semiconductor Inc (an affiliate of Taiwan-headquartered power supply maker Delta Electronics Inc) recently passed a series of rigorous DMTBF (demonstrated mean time between failures) tests for its double-sided-cooling gallium nitride (GaN) field-effect transistor. These tests have verified that Ancora components can maintain superior performance over long periods (200,000 hours), highlighting the high reliability and dependability of its products. The product line has been incorporated into the XPG FUSION 1600W Titanium-grade power supply developed in collaboration with Delta Electronics and ADATA Technology Co Ltd...

Welcome to the first day of the 2024 APEC conference, where global leaders converge to discuss pivotal topics shaping our technological landscape. Today, we delve into the field of semiconductor technology, exploring the transformative potential of wide-bandgap semiconductors and the dichotomy between wide-bandgap and not-wide-bandgap semiconductors. In this video, we analyze some points during the plenary session on Day 1.

The post APEC 2024, Day 1: Daily Briefing Video appeared first on EDN.

Power Integrations Inc of San Jose, CA, USA, which provides high-voltage integrated circuits for energy-efficient power conversion, has launched the InnoMux-2 family of single-stage, independently regulated multi-output offline power-supply ICs. InnoMux-2 ICs consolidate AC–DC and downstream DC–DC conversion stages into a single chip, providing up to three independently regulated outputs for use in white goods, industrial systems, displays and other applications requiring multiple voltages. Elimination of separate DC–DC stages slashes component count, reduces PCB footprint and increases efficiency by as much as 10 percentage points compared with traditional two-stage architectures. Efficiency is aided by the ICs’ 750V PowiGaN gallium nitride transistors, zero-voltage switching (without an active clamp) and synchronous rectification...

Two months ago, EDN published my teardown of Lenovo’s Smart Clock 2:

I’d mentioned in it that my dissection victim, acquired at steep discount from the original MSRP, included the “optional charging dock for both it, a wireless-charging (with MagSafe support, to boot) smartphone or other device, and a USB-tethered device (the USB charging port moved from the back of the speaker itself to the dock in this second-generation design)”:

An upfront correction before proceeding; I realize in retrospect upon re-read that my imprecise wording might have left you with the impression that the dock not only charged wireless- and USB-connected devices but also powered the Smart Clock 2 itself. Indeed, there’s an array of contacts on the underside of the Smart Clock 2:

which, as you’ll soon see, mate up to an array of spring-loaded pogo pins on the dock. However, as you may have already ascertained, given that that the Smart Clock 2 comes with a wall wart:

which mates with a barrel plug connector on the back of the device:

the power flow actually goes from the Smart Clock 2 to the charging dock and from there to its USB and wireless charging facilities for other devices’ use. One other note on the latter point, by the way…since the wall wart’s DC output is only 18W (12 V x 1.5 A) and since some of that power needs to be devoted to fueling the Smart Clock 2 itself along with whatever might be connected to the dock over USB, that explains (among other reasons) why Lenovo labels the wireless charging pad as “MagSafe-compatible”, not fully “Made for MagSafe”. Indeed, dive into the products’ tech spec minutia and you’ll find the following regarding the dock’s wireless charger:

• 5 W
• 7.5 W
• 10 W
• Fast-charging

Frankly, I was surprised to see that the peak wireless charging power goes that high; I’m guessing it’s only valid if the USB charging port isn’t in simultaneous use at the time.

In that earlier writeup, I also noted that “I bought mine brand new direct from Lenovo at the end of 2022 for only $29.99, complete with the docking station (which I’ll save for another teardown to come).” That time is now if you haven’t already figured it out ;-).

Our previous allusion to the charging dock, aside from the verbiage and pictures on the outside of the combined packaging:

was intentionally titillating: a brief glimpse of a white box:

underneath the more decorative box for the Smart Clock 2 itself (which was presumably intended to be optionally placed directly on retailer shelves for standalone sale):

Here’s a fuller view of the aforementioned box o’the bottom, as-usual accompanied by a United States penny (0.75 inches/19.05 mm in diameter) for size-comparison purposes:

Riveting presentation, eh? I’ll save you six closeups of various plain white box panels, instead substituting a sole closeup of the product sticker in the previous overview shot:

Yes, the label includes the FCC ID (O57SEA61UW). And yes, if you’re impatient to see what the charging dock looks like inside you could bypass my scintillating prose and jump right to the FCC’s internal photos. But where’s the fun in that? Are you trying to hurt my feelings?

Ahem. Onward:

Here’s our first glimpse of our victim; its bottom side, to be precise:

The charging dock has dimensions of 0.93″ x 8.65″ x 3.26″ (23.66 mm x 219.65 mm x 82.77 mm). I couldn’t find a weight spec anywhere and didn’t think to weigh it myself until after it was already in pieces. Underneath it is nothing but more cardboard along with a literature sliver:

Here’s the dock again, still in its protective translucent sleeve:

First glimpse of the topside:

Finally freed from its plastic captivity:

The two oval inserts fit into matching insets on the underside of the Smart Clock 2, with the one handling power transfer obvious from the aforementioned pins-to-contacts cluster:

Let’s next look around back to get a different perspective on those pins:

Along with, refocusing slightly, that USB charging port:

Finally, flipping the dock back over (the front and sides are bland unless you’re into pictures of off-white plastic):

Let’s take a closer look at those markings and the sticker alongside them:

You probably also saw the two rubberized “feet”. If you’ve perused any of my teardowns before, you know that what’s often underneath them (screw heads, etc.) are prime candidates to get inside, therefore garnering my immediate attention. Habitual behavior rears its head again:

A-ha!

Keen-eyed readers may have already noticed that both feet left plastic film behind:

which thankfully was no match for my trusty Philips screwdriver:

That said, I’m honestly not sure how much purpose the screws served, since after I sufficiently loosened them, I was left with two enclosure halves that still stubbornly clung together. Some additional attention along the sides from my spudger followed by a screwdriver (flat head this time), along with some patience, finally convinced them to separate, however:

In the process of wrestling the bottom panel away, I’d inadvertently also dislodged a previously unknown-to-me top-side insert, which I focused my attention on next:

And after removing four screws holding the metal plate in place (underneath of which, I suspect you’ve probably already guessed, is the wireless charging coil), I was able to lift it away:

See, there’s the coil (other examples of which we’ve seen before in teardowns past)!

Revealing, in the left-behind top half of the chassis, the “MagSafe-compatible” magnets:

Next step: separate the PCB from the insert. The first four screws to be removed were obvious to my eyes, but the PCB still wouldn’t budge…until I looked again more closely and saw #5 (not the first time I’ve overlooked a screw in a disassembly rush, and likely not the last, either):

Free at last!

Speaking of magnets, here’s another (bigger) one:

Revisiting my earlier Smart Clock 2 teardown, I realized I hadn’t mentioned a metal plate on the inside of its underside, focusing instead on the mini-PCB (such an electrical engineer, aren’t I?):

This magnet, perhaps obviously, proximity-clings to the plate, thereby helping keep the Smart Clock 2 connected to the dock below it.

Finally, the closeups of the “guts” that you’ve been waiting for. Note first the black-color ground strap wire connecting the metal plate to the PCB:

Flip it over and you can see the two thick wires connecting the PCB to the coil, along with two much thinner wires that run between the PCB and the temperature sensor at the coil’s center:

Now for the PCB itself. Here’s the side you’ve already seen plenty of, which points downward when the system is assembled:

Near the center, and toward the top, is a chip marked MT581 (along with a vertical line seemingly drawn by hand with a Sharpie?) from Maxic Technology, described as a “highly integrated, high-performance System on Chip (SoC) for magnetic induction based wireless power transmitter solutions”. It’s the function equivalent of various ICs from STMicroelectronics that I’ve encountered in past wireless charger teardowns. Below and to its right is the CH552T, a USB microcontroller manufactured by Nanjing Qinheng Microelectronics. Unsurprisingly, it’s nearby the dock’s USB charging port. And in the upper right quadrant, to the right of the MT581, is a cluster of four small chips with identical markings:

RU3040
PR05078

whose function eludes my Google research (ideas, readers?). Flip the PCB over:

and the dominant feature that’ll likely catch your eye is a rectangular-ish outline near the periphery comprised of 18 small white pieces of what looks like plastic. At first, I thought they might find use in attaching the PCB to the underside of the insert, but more thoughtful analysis quickly dashed that theory. Turning the PCB sideways revealed their true purpose:

They’re LEDs, implementing the charging dock’s “nightlight” function. Duh on me!

That’s all I’ve got for today, folks, although I’ll as-usual hold onto the pieces o’hardware for a while, for potential assistance in answering any questions you might have on stuff I haven’t already covered. More generally, as always sound off with your thoughts in the comments!

—Brian Dipert is the Editor-in-Chief of the Edge AI and Vision Alliance, and a Senior Analyst at BDTI and Editor-in-Chief of InsideDSP, the company’s online newsletter.

Related Content

• Lenovo’s Smart Clock 2: A “charged” device that met a premature demise
• Disassembling a wireless charger with a magnetic personality
• Dissecting a malcontent (and moist?) microwave oven
• Wireless charging: The state of disunion
• Apple’s MagSafe technology: Sticky, both literally and metaphorically
• Teardown: Wireless charger boosts output, alters orientation
• Solving a wireless charging mystery

The post Lenovo’s Smart Clock 2 Charging Dock: Multiple lights and magnetic “locks” appeared first on EDN.

Today at the Applied Power Electronics Conference (APEC), Infineon Technologies AG introduced a new product family of Solid-State Isolators (iSSI) to achieve faster and
more reliable circuit switching with protection features not available in optical-based solid
state relays (SSR). iSSI use coreless transformer technology and support 20 times greater
energy transfer with both current and temperature protection contributing to a higher
reliability and lower cost of ownership. The new iSSI allow driving the gates of Infineon’s
MOS-controlled power transistors OptiMOSTM and CoolMOSTM to reduce power dissipation
of up to 70 percent of todays’ solid-state relays using SCR (silicon-controlled rectifier) and
Triac switches.

Infineon’s solid-state isolators enable custom solid-state relays capable of controlling loads
more than 1000 V and 100 A. Improved performance and reliability make coreless
transformer technology ideal for applications in advanced battery management, energy
storage, renewable energy systems, as well as industrial and building automation system
applications. With iSSI drivers, engineers can further improve the efficiency of electronic
and electromechanical systems.

“Implementing coreless transformers in solid-state isolators and relays is truly a game-
changer for power engineers; it provides 50 times lower RDS(on) than existing optically controlled solutions. This enables their use in higher-voltage and higher power applications,” said Davide Giacomini, Marketing Director for the Green Industrial Power
Division at Infineon Technologies.

When matched with Infineon’s CoolMOS S7 switch, the iSSI drivers enable switching
designs with a much lower resistance compared to optically driven solid-state solutions.
This translates to longer lifespans and lower cost of ownership in system designs. As with
all solid-state isolators, the devices also offer superior performance compared to
electromagnetic relays, including 40 percent lower turn-on power and increased reliability
due to elimination of moving parts.

The family of devices is designed to be compatible with Infineon’s broad switching portfolio
including Infineon’s CoolMOS S7, OptiMOSTM and linear FET portfolios.

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Rohde & Schwarz and Samsung have collaborated to verify secure ranging test cases for the ultra-wideband (UWB) PHY layer and assess the secure receiver characteristics of devices based on FiRa specifications. There are new test cases specified in the FiRa 2.0 Technical Specifications, which covers the prevention of physical layer attacks on secure ranging applications based on UWB technology. These test cases were verified with the R&S CMP200 radio communication tester from Rohde & Schwarz on Samsung’s latest UWB chipset.

Having passed the FiRa® Consortium validation process, the R&S CMP200 radio communication tester is a certified tool for FiRa 2.0 PHY testing. With the successful verification of physical layer security test cases, Rohde & Schwarz and Samsung contribute to making standardized ultra-wideband (UWB) applications more resilient to malicious attacks.

UWB has unique capabilities for secure fine ranging, based on accurate Time of Flight (ToF) estimation and relative position determination. Therefore, UWB-enabled devices can accurately and securely measure the distance and direction of connected devices. These capabilities make UWB an ideal technology for a wide range of use cases, such as untracked indoor navigation, social distancing, hands-free access, asset tracking, ticket validation, mobile payment, and point-and-trigger applications. The PHY Secure Ranging test cases specified in the FiRa 2.0 Test Specifications have now been implemented by Rohde & Schwarz and verified using Samsung’s latest UWB Chipset, representing another step forward in achieving an interoperable UWB ecosystem across chipsets, devices, and services infrastructures.

Rohde & Schwarz integrated UWB test capabilities into the R&S CMP200 radio communication tester, making it the only test platform on the market capable of R&D and production RF tests for both 5G mmWave / FR2 and UWB functions. It is ideal for addressing UWB test challenges during mass production as well as R&D. The tester combines the capabilities of a signal analyzer and signal generator in a single instrument. In combination with Rohde & Schwarz shielded chambers and automatization software WMT, the R&S CMP200 offers a complete solution for transmitter, receiver, ToF and Angle of Arrival (AoA) measurements in conducted and radiated mode, compliant to IEEE 802.15.4a/z specifications.

Christoph Pointner, Senior Vice President for Mobile Radio Testers at Rohde & Schwarz, says, “We at Rohde & Schwarz are committed to creating a safer and connected world. For us, providing the means to ensure that a new wireless technology is resilient to malicious attacks is of the highest priority. That’s why we are very happy to have collaborated with Samsung for early verification of the FiRa PHY Security Parameter feature.”

Joonsuk Kim, Executive Vice President of the Connectivity Development Team at Samsung Electronics, said: “Drawing on our experience in developing IEEE 802.15.4a/z standard-based UWB solutions, we are excited to collaborate with Rohde & Schwarz in our joint commitment to creating a safer, more interconnected world. This partnership not only ensures industry compliance with FiRa Certification but also offers robust guidance on interoperability among UWB devices equipped with the latest secure ranging features. Leveraging our leadership in UWB technology, we remain dedicated to delivering valuable services and user experiences.”

Rohde & Schwarz will showcase the R&S CMP200 radio communication tester with integrated UWB test capabilities at Mobile World Congress 2024 in Barcelona in hall 5, booth 5A80. For further information about the UWB test solutions from Rohde & Schwarz, go to: https://www.rohde-schwarz.com/uwb

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Rohde & Schwarz received the Innovative Breakthrough in Mobile Technology Award at GTI Awards 2024 for its R&S CMX500 radio communication tester’s support of RedCap testing from early R&D to certification and conformance. The GTI Awards takes place during the Mobile World Congress and recognizes industry achievements and successes in 5G development across a wide range of market segments.

The GTI Award is granted by the Global TD-LTE Initiative (GTI), an organization of leading global operators that has successfully supported the commercialization of TD-LTE and 5G NR networks and services. The Innovative Breakthrough in Mobile Technology Award is given to technologies based on how they meet the needs of GTI operators, as well as their innovativeness, benefits, market potential, sustainability and impact. Rohde & Schwarz received this award for its R&S CMX500 one-box tester (OBT), a leading test solution that covers the entire 5G Reduced Capability (RedCap) lifecycle.

RedCap is a 5G technology defined in 3GPP Release 17. As a reduced-functionality version of 5G, it has a significantly lower cost compared to 5G eMBB. It is characterized by mid-range data throughput, low power consumption, low complexity and the ability to support a large number of devices. This makes it particularly attractive for IoT applications.

The R&S CMX500 OBT verifies the various RedCap aspects specified in 3GPP 5G Rel.17 for R&D, certification and conformance testing. It covers network access restrictions, bandwidth parts (BWP) and bandwidth part switching, power saving and other protocol signalling procedures. The platform has also been enhanced to verify the proper operation of RedCap terminal devices in legacy networks.

Christoph Pointner, Senior Vice President of Mobile Network Testers at Rohde & Schwarz, who accepted the award during the ceremony on February 27, 2024, at MWC Barcelona, said: “We are honoured to receive the prestigious GTI Award for our R&S CMX500 one-box signalling tester for its comprehensive support of 5G RedCap technology. This recognition is a testament to our striving commitment to push the boundaries of mobile communications testing to meet the diverse needs of network operators and device manufacturers, paving the way for new technologies.”

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