Category Archives: Electronic Products

TMR current sensor improves motor performance

Current control is the key to improving the performance of the motor. How to accurately measure the strength of the current requires an accurate current sensor. The current sensor using TMR technology will be one of the ideal choices for related applications. This article will introduce you the characteristics of TMR technology, the types of current sensors, and the product characteristics of Crocus Technology TMR current sensors sold by Murata, to provide you with a reference when choosing a product.

Current control is the key to improving the performance of the motor. How to accurately measure the strength of the current requires an accurate current sensor. The current sensor using TMR technology will be one of the ideal choices for related applications. This article will introduce you the characteristics of TMR technology, the types of current sensors, and the product characteristics of Crocus Technology TMR current sensors sold by Murata, to provide you with a reference when choosing a product.

TMR technology enables high magnetic sensitivity and stable performance

TMR (tunneling magnetoresistance) refers to a magnetoresistance effect that occurs in a magnetic tunnel junction (MTJ), which consists of two conductive magnetic layers flanked by a thin (nanoscale) but highly robust insulating layer, One magnetic layer has a fixed orientation of the magnetic moment, while the other layer is free to change to follow the direction of the local magnetic field. When the insulating layer is quite thin, electrons can tunnel from one ferromagnetic body to the other, and the magnitude of the tunneling resistance varies with the relative orientation of the two ferromagnetic materials. The magnetoresistive effect is the scientific basis for magnetic read/write heads in magnetoresistive random access memory (MRAM) and hard disks, and is also used in sensing.

Sensors using TMR technology sometimes serve the same purpose as Hall effect sensors, but work in a completely different way because TMRs are based on different physical phenomena, which explains their superior properties as magnetic sensors, the magnetoresistive effect is the The characteristic of changing its resistance value under the influence of an external magnetic field enables electrical detection of various magnetic fields in various applications.

Crocus Technology has developed and applied its innovative XtremeSense® TMR technology to provide superior magnetic induction performance for many applications. XtremeSense® TMR technology enables high magnetic sensitivity, stable performance over temperature, low noise and low power consumption, making it useful in a variety of end products and markets.

TMR current sensor improves motor performance

Current sensor detects current for further analysis and control

The current sensor is a device that can detect the current in the wire and generate a signal proportional to the current. The generated signal can be an analog or digital voltage or current signal. These signals can be connected to a meter (such as an ammeter ) Display, and can also be stored in a data capture system for further analysis or control.

The current sensed by the current sensor and the output signal can be analog output or bipolar output when AC input, which can replicate the waveform of the sensed current, or unipolar output, which will be related to the average or RMS value of the detected current. proportional. At DC input, a unipolar output can be used to replicate the waveform of the induced current, or a digital output can be switched when the detected current exceeds a certain threshold.

The measurement of current can be classified according to basic physical principles, such as Faraday’s Law of Induction, Magnetic Field Sensors, Faraday Effect, Hall Effect Sensors, Transformer or Current Clamp Meters, Fluxgate Sensors, Shunt Resistors, Fiber Optic Current Sensors, Rogow Rogowski coil (Rogowski Coil), magnetoresistance (MR), etc. The TMR introduced in this article belongs to the magnetoresistance technology. In addition to TMR, magnetoresistance-based sensors also include anisotropic magnetoresistance (AMR), giant magnetic These magnetic field sensors are suitable for AC and DC current detection, with higher accuracy than the Hall effect, and have been widely used in the industry.

Low-power, high-sensitivity, high-accuracy sensor

Magnetic sensor products from Crocus are based on its innovative XtremeSense® TMR technology, which utilizes monolithic technology to allow magnetic sensors to be fully integrated on a proprietary CMOS lithography process, simplifying manufacturing and enabling a higher level of integration and performance indicators, and can achieve high sensitivity, low noise and stable performance over a wide temperature range.

These magnetic sensors not only have high magnetic sensing performance, but also have the advantages of reliability, small size, galvanic and thermal isolation, high frequency operation and low power consumption, with high sensitivity and low noise and low power consumption at the nanometer scale The range provides high reliability and stable magnetic performance, and also provides excellent robustness in extreme operating environments. These characteristics make it ideal for many different operating environments and applications where accuracy and fast response are important, ideal sensing solutions for IoT and industrial applications, widely used in motor/motion control, energy management systems, inverse inverters, battery management, charge management and many other applications.

The TMR sensors introduced by Crocus include current sensors (contact, non-contact) and position sensors (switch, one-dimensional, two-dimensional). The contact current sensor introduced in this paper is high resolution, high bandwidth and fully integrated Sensors are solutions for products such as solar power systems, battery management systems, server power distribution units (PDUs), motor controls, motors, refrigerators, laptops, and security components.

High Precision Isolated TMR Current Sensor

The CT43x XtremeSense® TMR sensors by Crocus are 1 MHz bandwidth, high precision isolated current sensors with overcurrent fault detection. The CT430 (VCC = 5.0 V) and CT431 (VCC = 3.3 V) are both high bandwidth and Ultra-low noise integrated touch current sensor that uses Crocus Technology’s XtremeSense® TMR technology to provide high accuracy current measurement for many consumer, enterprise and industrial applications. It supports eight current ranges, where the integrated current-carrying conductor (CCC) will handle currents up to 65 A and generate the current measurement as a linear analog output voltage. It achieves a total output error of less than ±1.0% full scale (FS) over voltage and over temperature (-40°C to +125°C).

The CT43x XtremeSense® TMR sensors have a fast response capability of 1 MHz bandwidth and 300ns response time, current consumption is about 6.0 mA, CT430 has a high signal-to-noise ratio (SNR) of 9.0 mARMS, CT431 has an ultra-low noise of 9.5 mARMS, and both have Integrated common mode field rejection of -54 dB to ensure stray fields do not affect measurements in working applications. The CT43x has an integrated overcurrent detection (OCD) Circuit that recognizes the out-of-range current output on the fault pin (FLT#), which is an open-drain, active-low digital signal that can be activated by the CT43x to alert e.g. A fault condition that occurs with the microcontroller. Available in an industry standard 16-pin SOIC-Wide package, the CT43x is UL/IEC 62387, UL1577 and IEC 61000-4-5 certified, “green” and RoHS compliant. CT43x can be widely used in motor control, PLC/control boards, solar/power inverters, outdoor products, UPS, SMPS and telecom power supplies, battery management systems, smart appliances, smart meters, residential/commercial HVAC, industrial equipment, Power supply, overcurrent fault protection and other fields.


The current sensor has a wide range of applications and plays a key role in the efficiency of motor operation. The Crocus TMR current sensor introduced in this article has the characteristics of high bandwidth, ultra-low noise and high precision. It will be used in motor control and various consumer and industrial applications. one of the ideal choices.

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iPhone 12 mini will be discontinued, what do you think?

I believe that the fruit fans who have continued to pay attention to Mingmei Infinite should all know that the iPhone 12 launched by Apple last year has been enthusiastically sought after by consumers around the world, and sales are also rising. According to the latest statistics, Apple’s iPhone 12 has The shipment is about 40.4 million units, ranking among the forefront of 5G mobile phones. It seems that consumers still love the iPhone 12. However, among the four iPhones launched by Apple, there is one mobile phone that does not seem to be popular with consumers. That is The smallest iPhone 12 mini, and Apple seems to have discontinued the mini version of the iPhone to make way for other phones.

According to foreign media reports, the life cycle of the iPhone 12 mini has come to an end ahead of schedule, and Apple has discontinued the Model and entered the inventory clearance stage. If the news is true, then the iPhone 12 mini may be the shortest life-cycle Apple phone.

It is worth noting that in February this year, some analysts said that the market demand for the iPhone 12 mini is extremely low, which may cause Apple to stop production in the second quarter.

Looking back more than a decade ago, Steve Jobs thought that 3.5 inches was the best screen size for a mobile phone. However, today, the screen size of mobile phones is generally around 6.5 inches, and some models that focus on games and audio-visual experience even have screens of more than 7 inches. There is no doubt that a large screen brings a better experience, but not everyone needs a large screen. Many netizens call on mobile phone manufacturers to launch small-screen flagships that can complete all operations with one hand.

Perhaps hearing the voices of consumers, Apple launched a mini version in the iPhone 12 generation, and the 5.4-inch screen fits very well. However, this has also led to new problems. 5G networks are inherently power-hungry, but the battery capacity of the iPhone 12 mini is only 2227mAh, and the battery life performance is really poor. After all, the size of the fuselage is too small, and after adding many sensors, it can no longer fit a large battery.

According to reports, although production has been discontinued, the iPhone 12 mini is still available for purchase on Apple’s official website without any noticeable delay in shipping. The device is available in six colors, including purple, which will be available in late April.

The iPhone 12 mini ended up being the least popular model, showing the compact size of the phone isn’t popular in the US, which may be one reason why Apple doesn’t expect to release a “mini” version next year.

Apple is still expected to release the iPhone 13 mini later this year, but rumor has it that the 5.4-inch model will be gone in 2022.

In addition, Mingmei Infinite is also worth mentioning today that the news of the upcoming iPhone 13 series is becoming more and more clear. It is reported that this version will be released in the third week of September. However, the legendary 1TB version will not appear, and the iPhone 13 series should be equipped with the highest 512GB version. The price is basically the same as that of the previous game. If there is no accident, the minimum starting price of the National Bank version should still be 5499 yuan. In addition, the entire iPhone 13 series should be equipped with Apple’s latest A15 processor.

Mingmei believes that the price of the iPhone has risen to a certain level, and the price increase cannot continue; in fact, the starting price of the iPhone 12 series machines is the same as the iPhone 11 series, which shows that Apple is not willing to give up the “starting price” At this price, judging from the sales of flagship mobile phones on the market, high-end mobile phones with a price of 5,000 yuan are the most popular, so no one such as Apple will give up this price.

In terms of appearance, although major Android manufacturers have been working on off-screen cameras for a long time, the iPhone 13 will still be equipped with the ancestral Liu Haiping. However, it is reported that Apple will upgrade the bangs of the entire iPhone 13 series, which means that the screen ratio may be better than before.

In addition, the iPhone 13 Pro version will have a high refresh screen created by Samsung, which can support a refresh rate of up to 120Hz. Dimensions are still 5.4, 6.1 and 6.7 inches.

In addition, Mingmei Infinite wants to mention by the way that in addition to the configuration, there is another good news for the iPhone 13 series. At the VivaTech 2021 summit a few days ago, Apple CEO Cook said that in the future new The production of the iPhone will no longer consume the earth’s resources and will rely on renewable resources to manufacture. And Apple has achieved carbon neutrality. Through resource recycling and energy conservation and emission reduction policies, 100% of Apple’s products will be made of renewable materials in the future, and will no longer consume limited resources on the earth. Carbon neutralization of the entire chain to the user end.

Compared with environmental protection, perhaps users are more concerned about the strength of the product itself. As for the real machine, we will have to wait until the press conference in September to find out.

Finally, what Mingmei wants to say is: Now it has been revealed that Apple will discontinue the production of the iPhone 12 mini. Although it has not been officially confirmed, it is obvious that this is not groundless, and this small screen has been proved to a large extent. Flagships are not recognized by the mainstream market, and small-screen flagship phones are still a niche demand, not a mainstream market demand. If there is no major breakthrough in electromagnetic technology and screen technology, the small-screen flagship mobile phone may end its historical mission. What size mobile phone do you think is the most suitable?

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LG announced that it has successfully replaced 100% of hydrogen fluoride imported from Japan

Due to the trade dispute between Japan and South Korea, the Japanese government decided in early July to ban the export of three important semiconductor and Display Panel materials to South Korea, forcing South Korean companies to embark on a path of independence. LG has confirmed that its panel factory has completed the use of domestic hydrogen fluoride materials to replace Japanese imports, 100% of which are made in Korea.

High-purity Electronic-grade hydrogen fluoride is a type of fluorine fine chemical used in semiconductor manufacturing processes to remove unnecessary chemicals adhering to chemical vapor deposition furnaces after film deposition, plasma etching, photoresist patterning Subsequent processes such as etching grooves or holes are a very important raw material in semiconductor production, and Japanese companies have a major share in this field.

After Japan issued export restrictions, the export of hydrogen fluoride materials to South Korea dropped to 0 in August, but this move did not affect the chip and panel production of South Korean companies such as Samsung, SK Hynix and LG. They used 3-5 in stock. In the months of 2019, domestic substitution was actively carried out, among which hydrogen fluoride is a relatively easy field to achieve success.

Compared with semiconductor production, the high-purity hydrogen fluoride required for panel production is also easier to replace, so LG has taken the lead in making progress in this regard. In early September, it announced the use of hydrogen fluoride produced in Korea to replace materials imported from Japan, and the test results were very successful.

Previously, LG replaced mainly gaseous hydrogen fluoride, and now the more difficult domestic replacement of liquid hydrogen fluoride has also succeeded. On the 14th, LG’s LGD company said that the liquid hydrogen fluoride used in the panel production process has been fully replaced with Korean products in the near future. Then use imported products from Japanese companies.

Compared with LG, Samsung and SK Hynix are also actively carrying out the replacement of Japanese materials, but the main products of these two companies are semiconductor chips. The dependency is higher than LG, and it is not so easy to replace.

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The development of hydrogen fuel vehicles is gradually “fast lane”, and new breakthroughs have also been made in the research and development of related technologies

With the increasing pressure on environmental protection, hydrogen energy has high hopes as a clean, efficient and safe secondary energy. Especially in the past two years, both national and local governments have frequently mentioned “hydrogen energy” in relevant plans and policies, and car companies and related supply chain companies have also accelerated their investment in this area, and have achieved success in core technologies. must break through.

According to the “Technical Roadmap for Energy Saving and New Energy Vehicles” released by my country in 2016, the scale of China’s fuel cell vehicles will reach 1 million by 2030. Judging from the current development status of the entire industry, it may not be difficult to achieve this goal, but it is not that simple. Especially in the process of commercialization, there are still many practical problems, such as transportation and storage safety, and supporting construction of hydrogen refueling stations. , vehicle ownership costs, etc.

The development of hydrogen fuel vehicles is gradually “fast lane”

With the increasing pressure of environmental protection and the intensification of market competition, in addition to electrification, more and more companies have begun to focus on hydrogen fuel vehicles.


Among them, Toyota, as an early entrant and strong promoter in the field of hydrogen fuel vehicles, has launched its Mirai hydrogen fuel cell vehicle on the market for 5 years and has sold more than 10,000 vehicles worldwide. Recently, the company announced that it will build a future community powered by hydrogen fuel near Mount Fuji in Japan, called “Woven City”.

Like Toyota, Daimler began working on hydrogen fuel cell vehicles as early as the 1990s, with related products including Mercedes-Benz buses, Fuso trucks and the F-Cell SUV. However, the relevant person in charge of the company said that in the future, the focus will shift from passenger cars to heavy trucks and public transportation, and the production capacity of hydrogen fuel trucks will be increased in the second half of 2020.

In addition, Hyundai Motor has made rapid progress in hydrogen fuel vehicles in recent years, and presented it as the theme of major exhibitions. Data show that from January to October 2019, Hyundai sold a total of 3,207 hydrogen fuel cell vehicles, a year-on-year increase of 576%. In addition, BMW, Renault and other international car companies are also increasing related processes.

In the Chinese market, governments at all levels in provinces, municipalities, and regions have successively issued long-term plans for hydrogen fuel cell vehicles, and major auto companies have also launched active deployments in hydrogen energy vehicles. It is understood that Great Wall Motors has developed all core technologies in terms of fuel cells and hydrogen storage systems and is ready to put them into production facilities. Geely also released the first hydrogen fuel cell bus F12 in May 2019. The vehicle adopts cutting-edge hydrogen fuel cell technology. Through actual operation tests, it can be fully filled with hydrogen to meet the operating needs of one day. With the efforts of many parties, new data from the China Automobile Association shows that in 2019, my country’s fuel cell vehicle production and sales completed 2,833 and 2,737 vehicles, an increase of 85.5% and 79.2% year-on-year, respectively.

Breakthrough: It’s time for technological breakthroughs

With the rapid development and advancement of domestic hydrogen fuel cell vehicles, new breakthroughs have also been made in the research and development of related technologies.

It is understood that Yihuatong, which has been deeply involved in the field of hydrogen fuel cells for many years, released a new generation of hydrogen fuel cell engine YHTG60SS in early December last year. The power density of the new product exceeds 500W/kg, and it has achieved 100% localization of core components. It has laid a solid foundation for the further expansion of the follow-up market.

In addition, a key technology in hydrogen fuel cells, perfluorinated proton membrane, has also made a breakthrough with the efforts of Dongyue Group, not only achieving technical breakthroughs, but also passing various tests. It is understood that Dongyue Group is currently building a corresponding large-scale production line, and is expected to meet the demand for perfluorinated proton membranes for domestic fuel cell vehicles by 2025.

However, it cannot be avoided that despite major technological breakthroughs, there are still many limitations in the commercialization of hydrogen fuel cell vehicles. To achieve the goal of over one million, there are still a series of challenges that need to be overcome.

Challenge: How to be more secure? How to be more economical?

As we all know, the promotion of hydrogen fuel cell vehicles involves not only a car, but a set of complete and mature system support. For each link in this system, there is no ready-made experience for the industry and related enterprises to learn from.

First of all, it is also crucial that security issues cannot be avoided. As a fuel with a high calorific value, if hydrogen cannot properly handle the energy contained in it, it is likely to cause irreversible accidents. Therefore, before discussing how to scale hydrogen fuel cell vehicles, we must first ensure the safety of hydrogen energy transportation and storage. There are currently four known hydrogen storage methods, namely, high-pressure gaseous hydrogen storage, low-temperature liquid hydrogen storage, solid-state hydrogen storage and organic liquid hydrogen storage. The latter two methods have low hydrogen storage density and are prone to produce impurities and side reactions. , so the first two methods are mainly used at present.

Secondly, the supporting aspects of hydrogen refueling stations are also a major obstacle affecting the promotion of hydrogen energy vehicles. At present, limited by the construction cost of 10 million yuan per hydrogen refueling station, only 39 hydrogen refueling stations have been put into use nationwide in my country, and about 100 hydrogen refueling stations have not been put into use or are under construction, mainly for hydrogen Fuel cell energy supplement for large passenger cars. In California, one of the current main battlefields for hydrogen fuel cell vehicles, according to data from the U.S. Department of Energy, at the end of 2018, there were already 40 hydrogen refueling stations in the region, more than 7,000 for California (data in August 2019). ) hydrogen fuel cell vehicle power supply. In contrast, China’s current hydrogen fuel cell vehicle market is mainly concentrated in the fields of public transportation and commercial vehicles. If hydrogen fuel cell vehicles can be “savagely grown” like electric vehicles, how to reduce the cost of hydrogen refueling stations and build them on a large scale? and openness will become an important issue.

The third is the cost of hydrogen fuel cell vehicles. At present, the main cost of hydrogen fuel cell vehicles is concentrated in the fuel cell system, accounting for about 65% of the cost of the whole vehicle. It’s a big obstacle on the way to popularization.

Aside from the selling price, from the perspective of hydrogenation cost alone, calculated at 0.3 yuan/kWh, the current hydrogen refueling station takes into account equipment losses, and the comprehensive hydrogenation cost is about 30 yuan/kg , and if you choose the way of external hydrogen supply, the comprehensive hydrogenation cost is between 23.3 yuan/kg and 36.7 yuan/kg (depending on factors such as transportation distance, transportation method, etc.), although it has certain advantages compared to fuel vehicles, but Compared with pure electric vehicles, there is still a significant gap, which is one of the reasons why the planned hydrogen fuel cell vehicle will achieve one million ownership in 2035. Only when the cost of use is low enough, hydrogen fuel cell vehicles will have certain competition. force.

Of course, the imagination space for hydrogen energy is far more than that. Store renewable energy in the form of hydrogen energy, further enrich the hydrogen energy industry chain, gradually reduce the proportion of fossil energy participation, and optimize the storage and transportation of hydrogen to separate hydrogen production from hydrogen refueling stations, thereby reducing the construction of hydrogen refueling stations. The cost and convenience of large-scale construction of hydrogen refueling stations is what our ideal carbon-free society looks like. As mentioned above, this is a whole new system. On the way to realize our vision, there are bound to be many difficulties, but Only by taking the first step can we meet the blue sky.

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Graphics DRAM prices to rise in Q1 2020

According to Digitimes, DRAMeXchange said that DRAM prices in 2020 will increase by about 5% in the first quarter of 2020.

The reason is that during 2019, many graphics card and GPU products have transitioned from the older GDDR5 to GDDR6, a trend that is sure to continue into 2020. AMD’s Navi-based graphics cards are already all GDDR6-based, and so are most of Nvidia’s Turing cards, with a few exceptions for entry-level and mid-level GPUs.

New consoles from Microsoft and Sony are also expected to have an impact on GDDR6 supply, as they are both expected to release later this year with the latest GPU memory and storage standard. Although they won’t be released in the first quarter, DRAM suppliers are expected to stock up on GDDR6 ICs when the new consoles start production.

Of course, it’s worth noting that this is the price of DRAM contracts between manufacturers, but they often do translate into more expensive consumer products. Having said that, graphics DRAM is only a fraction of the cost of their integrated products, so the impact of DRAM prices alone won’t have much of an impact on hardware prices – it’s also possible that when DRAM is produced as new consoles come out, other than DRAM The price of hardware will also rise.

With the lowest memory prices in current history, this news is not surprising.

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New Release of Lattice sensAI Solutions Collection Accelerates Next-Generation Client Devices

Shanghai, China – November 18, 2021 – Lattice semiconductor Corporation (NASDAQ: LSCC), a leading provider of low-power programmable devices, today announced its latest roadmap for low-power, AI/ML solutions , these solutions can help network edge applications such as client computing devices extend battery life and bring innovative user experiences. Built with the award-winning collection of Lattice sensAITM solutions and running on Lattice Nexus® FPGAs, they help OEMs develop smart, real-time, low-power, hardware-accelerated AI-enabled devices that are field upgradeable , to support more AI algorithms in the future.

Client computing devices increasingly demand responsive and context-aware user experiences, high-quality video conferencing, and collaborative applications. The Lattice Nexus FPGA and sensAI solutions collection is an ideal platform for developing computer vision and sensor fusion applications that enhance user engagement and collaboration and protect user privacy. For example, the client device can analyze the image data captured by the camera to determine whether people behind you are too close to the user, and can also blur the screen to protect privacy when the user’s attention is shifted elsewhere, or dim the screen to prolong battery life.

“AI applications based on vision, sound and other sensors will revolutionize the client computing experience,” said Matt Dobrodziej, vice president of marketing and business development at Lattice. “Our sensAI supports a variety of network edge AI solutions that empower client devices with contextual awareness. , so they know when, where and how they are being used. Our Nexus FPGAs do this with industry-leading low power consumption.”

AI computing devices developed with sensAI and running on Lattice FPGAs have 28% longer battery life compared to devices that use CPUs to drive AI applications. sensAI also supports in-field software updates to keep AI algorithms evolving, and gives OEMs the flexibility to choose different sensor and SoC technologies to fit their devices.

Lattice is working with leading AI ecosystem partners to develop a roadmap for the development of the Lattice client computing AI experience.

“Our Glance by Mirametrix attention-sensing software captures the user’s face, eye and gaze movements to understand the user’s awareness and attention,” said Stephen Morganstein, vice president of Mirametrix. “This unique technology enables smart devices to provide a more natural and immersive user experiences and device interactions. Lattice’s collection of sensAI solutions and low-power FPGAs can help developers implement novel AI capabilities and improve device battery life.”

The latest version (v4.1) of the sensAI Solutions Collection is now available to support Lattice’s AI-based application roadmap with enhancements and new features including:

Client Computing AI Experience Reference Design

o User detection: Client devices are automatically powered on or off when a user approaches or leaves the device

o Attention Tracking: When the user’s attention is not on the screen, reduce the screen brightness of the device, save battery, and prolong the use time

o Face Framing: Enhances the video experience in video conferencing applications

o Bystander Detection: Detects potential peepers standing behind the device, blurring the screen for data privacy

More application support – The performance and accuracy improvements of sensAI version 4.1 help expand its target applications, including applications such as high-precision object detection and defect detection used in automated industrial systems. This collection of solutions features a new hardware platform, including an onboard image sensor, two I2S microphones, and expansion connectors for adding more sensors, enabling the development of voice and vision-based machine learning applications.

Easy-to-use tools – sensAI has also updated the neural network compiler to support Lattice sensAI Studio, a GUI-based tool with a library of AI models that can be configured and trained for various mainstream application scenarios. sensAI Studio now supports AutoML capabilities to create machine learning modules based on application and dataset goals. Some models based on Mobilenet’s machine learning inference training platform are optimized for the latest Nexus line of products, the Lattice CertusPro™-NX. sensAI is also compatible with other widely used machine learning platforms, including the latest versions of Caffe, Keras, TensorFlow, and TensorFlow Lite.

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The demand for MLCC for vehicles accounts for 20% of the overall MLCC, and the demand for electric vehicles may increase by more than 1.4 times?

On March 12, according to the report of the Chinese legal person, the current demand for MLCC for automobiles accounts for about 20% of the overall MLCC.

Among them, in the power system of electric vehicles, the demand for MLCCs is more than 5 times that of general fuel vehicles, and the demand for MLCCs for advanced driver assistance systems (ADAS) has increased to about 2,000 to 2,400 pieces, plus the demand for infotainment systems. It is estimated that the demand for MLCC for each electric vehicle is more than 1.4 times higher than that of ordinary fuel vehicles.

Looking forward to the application trend of automotive capacitors, the legal person expects that film capacitors will gradually replace electrolytic capacitors in the field of electric vehicles. For example, Tesla’s Model 3 electric vehicles and China’s BYD new energy vehicles use film capacitors.

Global MLCC manufacturers include Japan’s Murata, South Korea’s SEMCO, Taiwan’s Yageo, Japan’s Taiyo Yuden, TDK, AVX, etc. Yageo has a market share of about 13% and is the third largest MLCC supplier in the world. It is expected that legal entities, including Japanese factories Murata and TDK, Korean factories SEMCO, Taiwanese factories Yageo and Huaxinke, are expected to benefit from the increasing trend of MLCCs for electric vehicles.

Yageo previously decided to spend NT$50 billion to acquire Kemet, an American businessman, to expand its MLCC layout in automotive applications. Engines, safety systems, etc. In addition, Yageo’s previous acquisitions of Junyao and US Price Electronics also expanded the layout of vehicles. The legal person pointed out that KEMET’s main customers in the automotive field include Bosch, Continental, TOYOTA, etc. Huaxinke’s production capacity of automotive resistor components is mainly in Malaysia.

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Xilinx Expands New Applications with Cost-Optimized UltraScale+ Portfolio for Ultra-Compact, High-Performance Edge Computing

Beijing, China, March 17, 2021 – Adaptive computing leader Xilinx (NASDAQ: XLNX) today announced the market expansion of its UltraScale+ product portfolio to support new applications requiring ultra-compact and intelligent edge solutions. The new Artix® and Zynq® UltraScale+ devices offer a 70 percent smaller form factor than traditional chip packages, addressing a wider range of applications in the industrial, vision, medical, broadcast, consumer, automotive and connected markets.

As the world’s only 16nm technology-based hardware flexible cost-optimized portfolio, Artix and Zynq UltraScale+ devices feature TSMC’s most advanced InFO (Integrated Fan Out) packaging technology. With InFO technology, Artix and Zynq UltraScale+ devices address the demands of intelligent edge applications by delivering high compute density, excellent performance per watt, and scalability in a compact package.

Sumit Shah, senior director of product line management and marketing at Xilinx, said: “The need for compact intelligent edge applications is driving up the need for processing and bandwidth engines. These engines must not only provide higher performance, but also higher levels of Compute density to support the smallest form factor systems. The UltraScale+ family is powered by new cost-optimized products. It is based on the Xilinx UltraScale+ FPGA and MPSoC architectures and production-proven technologies that have long worked together Deployed in millions of systems around the world.”

Artix UltraScale+ FPGAs: Built for High I/O Bandwidth and DSP Computing

Based on a production-proven FPGA architecture, the Artix UltraScale+ family is ideal for a range of applications such as machine vision with advanced sensor technology, high-speed interconnect, and ultra-compact “8K-ready” video broadcasting. Artix UltraScale+ devices provide 16Gb-per-second transceivers to support emerging high-end protocols in the interconnect, vision and video domains, while enabling best-in-class DSP computing capabilities.

Figure: Xilinx Artix UltraScale+ FPGAs for High I/O Bandwidth and DSP Computing

Zynq UltraScale+ MPSoC: Optimized for Power and Cost

The cost-optimized Zynq UltraScale+ MPSoC includes the new ZU1 and production-proven ZU2 and ZU3 devices, all in InFO packages. Part of the Zynq UltraScale+ family of multiprocessing SoCs, the ZU1 is designed for edge connectivity and industrial and medical IoT systems, including embedded vision cameras, AV-over-IP 4K and 8K-ready streaming, handheld test equipment, and Consumer and medical applications, etc. The ZU1 is built for small, compute-intensive applications and features a multi-core processor subsystem based on heterogeneous Arm® processors, while migrating to common package sizes to support higher computing power.

Figure: Xilinx Zynq UltraScale+ MPSoC optimized for power and cost

“LUCID has worked closely with Xilinx to integrate the new UltraScale+ ZU3 into our next-generation industrial machine vision camera, the Triton™ Edge,” said Rod Barman, founder and president of LUCID Vision Labs. “With the UltraScale+ ZU3 and its InFO package, LUCID is able to leverage the The innovative rigid-flex board architecture packs incredible processing power into a factory-grade rugged, ultra-compact IP67 camera.”

Scalable and secure Artix and Zynq UltraScale+

With the addition of the new Artix devices and the expansion of the Zynq UltraScale+ family, Xilinx’s product portfolio now spans from the Virtex® UltraScale+ high-end family, the Kintex® UltraScale+ mid-range family to the new cost-optimized low-end family. The introduction of the new devices complements Xilinx’s product portfolio and provides customers with the scalability to develop multiple solutions using the same Xilinx platform. This preserves design investment across different product portfolios and accelerates time-to-market.

Security is a critical component in Xilinx’s design. The new devices in the cost-optimized Artix and Zynq UltraScale+ families have the same robust security features as the UltraScale+ platform, including RSA-4096 authentication, AES-CGM decryption, Data Protection Act (DPA), and Xilinx proprietary The Security Monitor (SecMon, security monitoring) IP can flexibly respond to security threats in the product life cycle and meet various security needs of commercial projects.

Dan Mandell, Senior Analyst, IoT and Embedded Technologies, VDC Research, said: “The ability for customers to scale their designs to accommodate a wide range of applications and market needs with a single and secure platform is critical for easier design integration and control. Time-to-market opportunities are critical. Xilinx’s strategy to expand its product portfolio to address these market needs with the scalable and secure UltraScale+ Artix and Zynq families is attractive, especially given the There are huge opportunities in growth markets.”


The first cost-optimized Artix UltraScale+ devices are expected to be in production in the third quarter of 2021, with support for the Vivado® Design Suite and VitisTM unified software platform tools beginning in late summer. Tooling support for the Zynq UltraScale+ ZU1 device will be available in the second quarter, with samples available in the third quarter; mass production of the broad product portfolio will begin in the fourth quarter.

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After Renault, Nissan to sell Daimler stake

Following the sale of Daimler shares by alliance partner Renault in March, Nissan has now also said it is selling a 1.5 percent stake in Daimler in an accelerated deal, according to foreign media reports.

(Image credit: Nissan)

Nissan will sell its shares to institutional investors at the end of June at a price of 69.85 euros per share, according to a statement issued on May 4. The company is expected to earn about 1.15 billion euros (about 1.38 billion U.S. dollars). The proceeds will be invested in areas such as electric vehicles.

Earlier this year, Daimler and Renault said the partnership was continuing, but people familiar with the matter said large-scale preliminary plans were never finalized and cross-shareholdings were no longer necessary. Daimler said it would not comment on third-party deals and its alliance partnership had not changed. Daimler has not announced any plans for a stake in Nissan and Renault.


(Image source:

The Nissan-Renault-Daimler business and capital partnership began in 2010 and was developed by Carlos Ghosn, who also leads Renault, and Dieter Zetsche, who was chairman and CEO of Daimler until 2019. At the time, Nissan and Renault acquired a combined 3.1% of Daimler; Daimler also held 3.1% each in Nissan and Renault. After the global economic crisis in 2008 overburdened car companies with excessive staff, equipment and debt, Ghosn believed that joining forces with peers was a way to deal with the crisis. Partners increase competitiveness with companies such as Toyota, Volkswagen and BMW.


(Image credit: Daimler)

In a presentation with Zetsche at the 2015 Frankfurt International Motor Show, Ghosn boasted of the Renault-Nissan alliance’s 13 joint projects with Daimler, calling the three-company alliance “one of the most fruitful collaborations in the automotive industry.” . However, the effectiveness of these programs is open to question.

In 2017, the three automakers opened a joint plant in Mexico, one of their most famous joint ventures, producing compact cars from luxury brands Infiniti and Mercedes-Benz. But sluggish sales of small cars in the U.S. have kept the plant’s annual output well below its annual capacity of 230,000 vehicles. The plant produced 90,000 vehicles in 2019 and 106,000 last year, according to research firm MarkLines.

In 2014, Nissan started using Daimler engines in its flagship Model, the Skyline, but has since switched to Japanese-made engines. After Ghosn’s arrest and Zetsche’s ouster, the partnership between Nissan and Daimler stalled further. As the partnership loses momentum, cross-shareholding also becomes moot.

Source: Gasgoo

Author: Gu Jiaojiao

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MediaTek will launch a new MT689X processor, upgrade TSMC’s 6nm process

MediaTek’s 5G processor this year has won orders from major manufacturers including Huami OV, and its performance has soared, thanks to the Dimensity series. In addition to the Dimensity 1000/800/700 series this year, there will soon be a new generation of high-end 5G Dimensity chips, using ARM G78 CPU and G77 GPU cores.

According to sources, MediaTek will soon launch a new MT689X processor, upgrade TSMC’s 6nm process, and the architecture is similar to Samsung’s Exynos 1080, which means that the CPU will be ARM’s Cortex-A78, GPU will be Mali-G77, but GPU How many cores are uncertain.

According to the information given, the AnTuTu running score of this processor is around 600,000, which means that it is similar to the Snapdragon 865 and lags behind the Kirin 9000 and Exynos 1080.

Of course, compared with the usual score of 500,000 points for the Dimensity 1000 processor, the performance of this new 6nm processor has improved a lot, but it has not reached the level of the next generation, so it is not the Dimensity 2000, it may be named the Dimensity 1500 series .

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