We want to Create a World where People can Easily Work with Robots and Not Like Robots.

Industries have seen an array of growth, which has often come from industrial robotics and automation. What makes factories extremely cumbersome, extremely difficult. At the same time, the adoption of automation itself is a tedious task. Now that’s where Cobots come into picture. It is a technology under the bracket of collaborative automation called Collaborative Robots whose deployment into the factory is a matter of half a day.

“There is a requirement for significant capacity enhancement in the semiconductor sector,” feels Guruprasad Mudlapur, Managing Director of Bosch Limited

When COVID-19 hit the market in the first half of 2020, headlines all over the world surfaced that vehicle demand decreased drastically. But, within a year, there is another concern based on the supply side. Although the demand suddenly escalated globally, a massive slump of automotive semiconductor production had forced the OEMs to halt the manufacturing units.

Despite Lowest Q2 Market Share in Past Three Years, How China is Still Leading the Global EV Race

In an effort to reduce the greenhouse gas emissions and boost the growth of carbon-neutral vehicles, governments throughout the world are unleashing new initiatives, schemes, and legislation. For instance, USA’s bipartisan infrastructure law is looking for a target of 50 percent of new car sales to be electric by the end of 2030, while the European Climate law is looking for a net-zero carbon emissions by the end of 2030. Asian countries such as India, Indonesia, China, Thailand are also adopting the same measures. Currently, Indonesian roads are furnished with 28,000 electric vehicles and they are looking to have 2.5 million EV consumers by the end of 2025. Neighboring countries such as India are also planning to have 30 percent of EV penetration by 2030 and as per the analysis of Rocky Mountain Institute (RMI), the market share could range from 62 percent to 86 percent of total sales.

Of late, global research institute Counterpoint also stated that the Q2 of 2023 witnessed a 50 percent YoY growth of battery electric vehicle (BEV) unit sales, which is mostly spearheaded by North America, Western Europe, and few markets in the Asian region. The point to be noted is that the frail economy of China failed to augment the country’s market during the first quarter and hence, they had a 37 percent YoY growth, which is far below the international average. Nonetheless, the OEMs in China are still leading the market because they enjoyed scale advantages that helped them to grab 56 percent of the international sales.

Archie Zhang, Research Analyst, China said, "BYD Auto, GAC Group and Geely Holdings were three of the world’s top five passenger EV makers last quarter, yet none are household names in the west. They sell most of their cars at home. Chinese OEMs play mainly in the compact or subcompact space with performance and features reflecting this positioning.  They might look sleek but they’re not a Tesla – at least not yet.

But, the International Energy Agency (IEA) has something else to say. According to their analysts, in 2022, 14 percent of cars sold globally were electric, which has increased from 9 percent in 2021. Speaking of international sales, three countries topped the spot. China once again became a market leader as it managed to have 60 percent of international EV sales. Europe, is now the second biggest EV market in the world that had 15 percent sales in 2022, while the US grabbed a sales market share of 8 percent. For 2023, around 2.3 million electric cars were already sold and it seems the volume is likely to escalate by 14 percent by the end of this year.

Vehicle Sales Graph

Again speaking of China, the trend outside the country has shifted to premium models. Analysts have observed that the chunk of passenger EVs sold are highly-priced, deluxe, and bigger in size. Although Tesla is a huge brand in the premium segment, competitors such as Mercedes, Vokswager, Hyundai kia, BMW are also leading the segment. The adoption process is a bit slow because electrification is urging car-makers to reassess manufacturing. Experts believe that premium electric cars will popularize like smartphones in the coming years and is going to provide more services than conventional vehicles.

Brady Wang, Associate Director, Semiconductors and Components at Counterpoint Research said, "Tesla’s brought a new dimension to the automotive industry by tightly integrating advanced hardware with software and electrification. While the traditional OEMs are competing with this level of modernization and sophistication, Tesla is racing to scale down this software-centric approach from luxury to premium and mainstream levels. For most OEMs, they had to start from scratch and play catch up. It's a learning curve on employing cutting edge chips, components, and software and achieving a level of user experience set by Tesla.

The upcoming electric cars require more sophisticated chipset and numerous hardware components such as batteries, power-controllers, sensors, and others. Therefore, securing and sourcing these essentials is extremely imperative to manufacturing e-cars to unlock state-of-the-art experiences. The semiconductor production slump is an ongoing scenario for the past few years and it posed a massive challenge to automobile manufacturers to fight with procurement.

Electric vehicles are poised to completely dominate the global auto market and therefore, the industry is witnessing a new demand cycle spearheaded by swiftly expanding requirements for software capabilities, computing power, and sensors. Currently, the European and the US car-makers are paying more attention to enhanced procurement processes, but speaking of the Chinese OEMs, they could augment the geopolitical tussle as they expand more into the premium EV segment and elevate the computing value chain.

As per the IEA Stated Policies Scenario (STEPS), the current policies formulated by the governments, and OEM's objectives, the future sales shares of EVs are expected to increase by 30 percent in 2030. As per the expectations, China is again likely to lead the Ev market with 40 percent of sales in 2030, the US will have 20 percent share, while Europe will retain its ongoing 25 percent share. The all-new CO2 standards for vehicles by the EU, USA’s Inflation Reduction Act coupled with California's Advanced Clean Cars II rule could provide a 50 percent market share for EVs in 2030, which is as per the national target.

EV Charging Station

IEA’s STEPS further mentioned that the demand of oil for road transportation will soar excessively in 2025, with the amount of oil displaced by electric vehicles exceeding 5 million barrels per day in 2030. In the STEPS, emissions of around 700 Mt CO2-equivalents are avoided by the use of electric cars in 2030. The global announcements on battery manufacturing as of Q1 2023 will be more than enough to meet the growing demand for the industry. Hence, there is a higher probability of having bigger sales shares for EVs than those expected out of government policies and national targets.

Again, speaking of the bigger unit sales in EV, China, which is considered to be the world’s largest market in this industry, witnessed only 37 percent YoY growth in terms BEV sales, far lower than the industry average of 50 percent. It shows there is a slump in the country’s domestic market and the demand is affected by its fragile economy. Tesla and BYD are still dominating the market devoid of any confusion and they around one-third of the in-house unit sales. Interestingly, China’s GAC Motor in a very short period has entered the number three in the competition as the demand has increased and its range of Sedan and Hatchbacks have reduced the price of the cars to a larger extent.

Not only that, there are various domestic mid-level firms in China, which are witnessing good sales volume, which is due to the fact they are equipped with wide-range of vehicles. However, various automobile manufacturers are also facing challenges as the market soothes. The fact is that the vehicle market in China is gigantic, but there are numerous mid-sized car manufacturers and therefore, if the market starts tumbling suddenly, smaller firms will definitely exit.

In an effort to have strong EV unit sales in the coming years, the majority of the Chinese OEMs are looking forward to growth in this industry in other countries and simultaneously grabbing a massive market share in Asia and in Europe. Keeping aside China, currently, the globe’s second largest EV market in Western Europe. SAIC, BYD, and MG are helping to elevate China's EV share in the region owing to its affordable range of vehicles. The old renowned car firms are facing difficulty because they are failing to meet the demand of selling EVs between $20,000 – $40,000 price range. This is why Chinese car-makers are able to dominate the market.

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Nickel-Hydrogen Batteries: A Legacy of NASA’s Space Missions Shaping Modern Energy Solutions

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Since the 1960s, NASA has relied on an old yet dependable technology for powering the International Space Station (ISS), satellites, and other space vehicles: nickel-hydrogen (Ni-H2) batteries (NHBs). These batteries are revered for their durability, long lifespan, and outstanding safety record, even under the most extreme conditions. Let's explore how these batteries function and their potential benefits for modern applications.

Tests conducted on these batteries often involve harsh treatment, such as deliberate perforation using nails or firearms. The results consistently prove the remarkable resilience of NHBs, as there's no explosion, fire, or material ejection—even in cases of hypervelocity impact. The surface temperature remains at a manageable 44 degrees Celsius (112 degrees Fahrenheit) and the pressure and voltage rapidly dissipate, preventing any catastrophic rupture.

Unlike common lithium-ion batteries, NHBs do not develop dendrites, which are tiny metal structures that build upon anodes during charging and can cause short circuits or other failures. This means the batteries can go through approximately 30,000 cycles—or around 30 years of daily use—without compromising their integrity, making them a low-maintenance solution for long-term energy storage.

The battery's chemical makeup is mainly hydrogen and water, meaning they're also environmentally friendly. Additionally, their manufacturing process is straightforward and uses abundant elements, nickel, and hydrogen, thus easing supply chain and cost issues.

Old Tech is New Again

So why is this legacy battery design now relevant again? And why have NHBs and their potential applications been overlooked until now?

Well, despite a 250 percent surge in nickel prices in 2022, the low-maintenance nature and longevity of these batteries potentially save substantial operational costs, particularly for renewable energy storage facilities. Also, when the time comes for disposal, these batteries are almost 100 percent recyclable. But the real reason these legacy batteries have been dormant is cost. Sky high cost! 

But that all might soon change. EnerVenue, a California-based company specializing in energy storage solutions, has embarked on a large grid-scale gigawatt storage facility that will be located in Kentucky and will seek to capitalize on all the potential upsides of using NHBs.

EnerVenue feels that, like the proven technology used by NASA for more than 30 years, their Energy Storage Vessels™ (ESVs) feature an exceptionally long lifespan, eliminating the need for augmentation or oversizing. ESVs can be easily mounted in racks, containers, or stacked in custom warehousing. Their unique chemistry eliminates the need for preventative fire suppression. They can also reliably operate in a wide ambient temperature range without supplementary HVAC. ESVs dramatically reduce operating expenses and feature a much lower cost-per-cycle compared to lithium-ion chemistries.

3/30/30,000: Energy Storage Vessels can cycle up to 3 times per day without rest and boast an expected lifetime of 30 years / 30,000 cycles – enabling unique applications and business models for developers, integrators, and owners. - EnerVenue

The company is addressing the astronomical cost problem primarily by utilizing economies of scale and mass production of their ESVs. These batteries are still pricey, but EnerVenue’s large "gigafactory"—and potential future ones like it—will make them more affordable by eliminating the need for custom designs. By the end of 2023, EnerVenue expects the gigafactory to begin production.

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Irrespective of the specific battery design, converting potential energy into electrical energy necessitates the implementation of a resilient and high-efficiency Battery Management System (BMS). This week's New Tech Tuesday highlights the introduction of BMS solution devices by Vishay / Dale and Nexperia.

The HV Intelligent Battery Shunt HV-IBSS-USB from Vishay / Dale is a reference design made to easily evaluate the low Temperature Coefficient of Resistance (TCR) of shunt WSBE8518. It uses a single USB-C connector to provide power to the circuit and to emulate a serial interface so engineers can conveniently make voltage, current, and temperature readings.

Due to the low TCR of the WSBE8518 (maximum ± 10ppm/K for 100μΩ) alongside the choice of low thermal drift components in the analog frontend, this reference design can achieve an overall TCR of approximately 44ppm/K max. without thermal compensation over the whole temperature range. The device is factory calibrated (values stored in onboard EEprom) to allow for current measurements with 0.2 percent and thermal drift for currents in the range of ±500A.

The TCR is a crucial parameter in current sensing measurements, especially in applications like BMS that involve monitoring and managing current flow in various components, including battery shunts. TCR indicates how a material's electrical resistance changes with changes in temperature. It's expressed as a fractional change in resistance per degree Celsius change in temperature (ΔR/R0 per °C), usually in parts per million per degree Celsius (ppm/°C).

In BMS, TCR plays a significant role for several reasons, including the precise measurement of current flowing into and out of the battery, as well as throughout the battery system. This is essential for monitoring the state of charge (SoC) and state of health (SoH) of the battery. TCR helps compensate for changes in resistance due to temperature variations, allowing for more accurate and consistent current measurements. Additionally, accurate current measurements enable the BMS to detect anomalies and potentially hazardous conditions like overcurrent situations, which can lead to thermal runaway or other safety risks. By compensating for temperature effects, the BMS can respond appropriately to changes in current flow, enhancing the overall safety and efficiency of the battery system.

Nexperia eMode GaN FETs offer a voltage range of 100V to 650V and superior ultra-high frequency switching performance. These general-purpose enhancement mode (eMode) Gallium Nitride Field-Effect Transistors (GaN FETs) deliver fast transition and switching capability with minimal conduction and switching losses.

Enhancement mode FETs are "normally-off," meaning that by default, the transistor is in an "off" state until a specific voltage to its gate terminal is applied, activating the transistor and letting current flow. This type of GaN FET is commonly used in power electronics because it's safer and more predictable—if there's no voltage applied, it stays off, reducing the risk of accidental current flow.

These power FETS are available in a DFN 8mm x 8mm surface mount package. Applications include high power density and high-efficiency power conversion, AC-to-DC and DC-to-DC converters, fast battery charging, and motor drives. For 650V and ≤ 150V industrial and consumer applications, Nexperia e-Mode GaN FETs provide the balance between switching performance and robustness.

Tuesday’s Takeaway

Nickel-hydrogen batteries, despite being old technology, continue to prove their worth, especially in the renewable energy sector. Although their initial cost is high due to the use of expensive metals, advancements in mass production and the potential for cost-saving through their durability and longevity make them an attractive option as energy storage vessels for companies like EnerVenue. As we gear towards more sustainable energy solutions, it's crucial to revisit and optimize tried-and-true technologies like NHBs, which have been quietly powering our space missions for decades.

In the realm of battery management, Vishay / Dale and Nexperia present solutions like the HV Intelligent Battery Shunt, which leverages TCR technology for current sensing measurements to ensure accurate current monitoring while enhancing battery safety and efficiency. Nexperia’s eMode GaN FETs represent a safer and more predictable option in high-power density electronics, designed to remain off until activated, thereby reducing the risk of unintended current flow. These FETs offer efficient power conversion in various applications, showcasing a balance between switching performance and robustness.

Innovation continues to merge lessons from NASA's legacy technology with modern applications, providing solutions that bridge the gap between reliability, sustainability, and efficiency in energy storage and management.

Original Source: Mouser

About the Author

Rudy is a member of the Technical Content Marketing team at Mouser Electronics, bringing 35+ years of expertise in advanced electromechanical systems, robotics, pneumatics, vacuum systems, high voltage, semiconductor manufacturing, military hardware, and project management. As a technology subject matter expert, Rudy supports global marketing efforts through his extensive product knowledge and by creating and editing technical content for Mouser's website. Rudy has authored technical articles appearing in engineering websites and holds a BS in Technical Management and an MBA with a concentration in Project Management. Prior to Mouser, Rudy worked for National Semiconductor and Texas Instruments.

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There is a Huge Need for Rationalization of Coal Distribution for Uninterrupted Power Supply

During the first quarter of this year, warnings have been issued in terms of heatwaves that posed a serious threat to the country’s electricity generation. According to a report by S&P Global, India’s electricity demand increased by 8.7 percent in 2022, and on the other hand, coal generation increased by 8.7 percent causing massive emissions. Now, speaking of the higher demand, the Central Power Ministry started finding out solutions to provide ample power during the summer months.

Top 10 Mini DIY Projects for Learning Basics of Electronics

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If you are an electronics enthusiast, want to learn the basics of electronics, and improve your basics with some practicals and hands-on projects, then this article is for you. In this article, we are going to look at the top 10 mini-projects that you can build very easily and can help you understand the function and workings of different electronic components.

Smart Electronic Candle

Ordinary candles work fine but they melt away pretty fast making the place nasty, and at times if unattended, it can also lead to fire hazards. This DIY Smart Electronic Candle utilizes an LDR (Light Dependent Resistor) and an LM358 IC to create a flameless candle. When darkness falls, the LDR's resistance increases, triggering the LM358 IC, which, in turn, lights up an LED, mimicking the glow of a real candle. The circuit is calibrated using a potentiometer to adjust sensitivity, ensuring it activates in low-light conditions. Powered by a low-voltage source such as a lithium battery, this project provides a safe and aesthetically pleasing alternative to traditional candles, perfect for decorative or ambient lighting purposes.

Link: DIY Smart Electronic Candle using LDR

Fridge Door Alarm Circuit

This fridge Door Alarm Circuit is a good solution that will inform the user about the door in prolonged open. This circuit triggers the alarm if the door of the Fridge is left open for a long time. 

As soon as we open the Door of the refrigerator, LDR senses it and starts the countdown using the 555 Timer, and after a preset time, the buzzers start beeping as an alarm signal.

Link: Fridge Door Alarm Circuit using 555 and LDR

Electronic Code Lock Circuit

The 555 Timer Electronic Code Lock Circuit is a digital security system that requires pressing specific four buttons simultaneously to unlock. Utilizing a 555 IC in monostable mode, it operates without a microcontroller. When the correct combination is entered, an LED stays on for around 5 seconds, indicating access. With 8 buttons, the lock offers 40,000 unique combinations, enhancing security. The system's simplicity lies in its straightforward design and lack of complex electronics, making it an efficient and accessible solution for digital code-based locks.

Link: 555 Timer Based Electronic Code Lock Circuit

Clap Switch Circuit

The Clap Switch project is an ingenious electronic circuit that turns on a light or device in response to a clap sound. Utilizing an electric condenser microphone as a sound sensor, the circuit translates the sound energy into electrical signals. When a clap or similar sound is detected, the microphone triggers a transistor, activating a 555 timer IC. The IC, in turn, illuminates an LED for a specific duration before automatically switching it off.

Link: Clap Switch

Fire Alarm using Thermistor

The Fire Alarm using Thermistor project presents a simple yet effective fire detection system. It utilizes a Thermistor, NPN transistor, and a 555 Timer IC to sense temperature changes indicative of a fire. When the Thermistor detects a rise in temperature, its resistance decreases, triggering the transistor to turn off. This action activates the 555 Timer IC, which generates an oscillating signal to drive a buzzer. The circuit's sensitivity is adjustable using a variable resistor. 

Link: Fire Alarm using Thermistor

Battery Level Indicator using Op-amp

The "Simple Battery Level Indicator using Op-amp" project is a straightforward and effective solution for monitoring 12V batteries. Leveraging the LM324 Quad Op-amp IC, it employs a reference voltage system with Zener diodes and resistors to establish specific voltage thresholds. When compared to the battery voltage, LEDs light up to indicate the charge level, eliminating the need for complex calculations. Its simplicity and cost-efficiency make it suitable for diverse applications, such as portable electronics and automotive systems.

Link: Simple Battery Level Indicator using Op-amp

Solar Powered Cell Phone Charger Circuit

The "Solar Powered Cell Phone Charger Circuit" project offers a practical solution for charging mobile phones using solar energy. It utilizes three 5.5V 245mA Monocrystalline solar panels connected in parallel to provide a stable 5.5V and 735mA output. A 5V Boost Converter ensures constant voltage, and a switch controls the charging process. The circuit's efficiency was confirmed using the "Ampere" app, demonstrating its effectiveness in charging a mobile phone even under varying solar radiation.

Link:  Solar Powered Cell Phone Charger Circuit

Musical Doorbell Circuit

The "DIY Musical Doorbell Circuit using UM66T" project empowers enthusiasts to create a musical doorbell with minimal components, including UM66T-19L Melody Generator IC, transistors, resistors, and a speaker. This accessible tutorial guides users through assembling the circuit, utilizing a time delay feature to control the musical tone duration upon button press. The UM66T IC, operating between 1.5V to 4.5V, generates specific tunes when triggered. Transistors amplify the IC's output before reaching the 8-ohm speaker, ensuring audibility.

Link: DIY Musical Doorbell Circuit using UM66T

DIY Foam Cutter

The "DIY Foam Cutter Using the IRF540N MOSFET" project introduces a portable hot wire foam cutting tool designed for crafters and hobbyists working with Styrofoam and polystyrene. Utilizing Nichrome wire and an IRF540N MOSFET, this DIY tool offers precise control over heat, enabling intricate designs and models. The circuit features a 2S 3A Battery Protection BMS for efficient power management and longer battery life. A 3D-printed case houses the components, ensuring portability and durability. With adjustable heat settings through a 100KΩ potentiometer, users can tailor the tool to their specific needs.

Link: DIY Foam Cutter Using the IRF540N MOSFET

10. Simple Wireless Power Transmission Circuit to Glow an LED

Wireless Power Transmission Circuit

The "Simple Wireless Power Transmission Circuit to Glow an LED" project illustrates wireless electricity transfer principles using a transmitter and receiver setup. Utilizing coils and a transistor, the transmitter generates a high-frequency electromagnetic field. The receiver captures this field's energy and illuminates an LED without physical connections. While limited in power, the project showcases fundamental wireless energy transfer concepts.

Link: Simple Wireless Power Transmission Circuit to Glow an LED

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How to Address the Current Challenges in Global Semiconductor Supply Chain Ecosystem, Define Analysts

In order to meet the overall demand, the fabs capacity has been escalated to 95 percent, but they are not being able to counter the issue.

In the past two years, experts have mentioned that the chip manufacturing market has been extremely strained all over the world and the impediments in the supply chain will persist by the end of 2023 or early 2024. Semiconductor analysts have added that the production slump in this industry is not that new and they are cyclical. The production shortages can happen due to natural disasters, altering fiscal conditions, geopolitical scuffles, and  also variations in the supply of semiconductor material.

Now, over the last 2-3 years, several businesses have shifted towards just-in-time inventory strategies, which is cost-saving and effective. It is beneficial when there are no shortages in the supply chain because this just-in-time strategy helps businesses to improve their inventory storage division and saves costs as the supply chain inventory volume is reduced. When the coronavirus pandemic commenced in 2020, car-makers massively decreased their chip orders as they were under an impression that sales will decrease to a larger extent.

Although manufacturing decreased, digitization has gained more momentum and the demand for consumer electronics and IT hardware products have augmented. Therefore, the semiconductor manufacturing companies have stopped making low-cost chips and started making the expensive ones. In order to meet the overall demand, the fabs capacity has been escalated to 95 percent, but they are not being able to counter the issue.

Semiconductor Supply Chain Precompetitive Research

Tamera Max, who was associated with S&P Global as Director Technical Parts, said, "The global shutdown affected semiconductor manufacturing companies across the world, unilaterally stopping wafer production. Fabs in some countries were offline longer than others and, depending on how the production line was paused, it took weeks to months to bring a fab back online. Once a fab is online, it takes 26 weeks to fill the production pipeline from wafer start to completion."

"Wafers are processed in lots or batches that take 12 weeks to cycle through the fab (14 to 20 weeks for complex process technologies). An additional 12 to 14 weeks are required for testing, die bonding and packaging. Manufacturers prioritized the existing semiconductor inventory to fill orders, so as fabs came back online, production was already lagging demand. Longer lead times made it difficult to meet demands, and semiconductor manufacturers found that increasing capacity was not enough to make up for the difference between supply and demand," added Tamera.

Even before the COVID-19 scenario, there was a huge demand for semiconductors that was putting a huge pressure on the production units and in the logistics. It is just that the pandemic augmented that pressure in various ways. The entire supply chain was impacted both in the transportation sector and shipping and also reduced the volume of human workforce. Compared to other manufacturing sectors, the chip industry is very technical and around 25 percent of the workforce during that time was affected with the infection and quarantined.

In 2021, chip-makers and the foundries have decided to set-up 29 new chip manufacturing units and many of these top-notch fabs are located in Taiwan and in China, which is followed by Korea, Japan, and the US. Around 14 fabs commenced constructing new factories in 2021 for 300 mm technology and in 2022, another 10 fabs decided to build new units. Technically speaking, a fab construction can be completed in two years and an additional year is required to install the machinery. According to the analysts at S&P Global, around 200 fabs with 300 mm technology will be fully operational by the end of 2026. The point to be noted is that most of the chip-making firms have started building their assembly and packaging division in-house, but 80 percent of the fb units are still located in China, South Korea, Japan, and Taiwan.

Akshara Bassi, Senior Research Analyst with Counterpoint Research told CircuitDigest, "Biggest supply chain challenge for the semiconductor ecosystem is concentration of manufacturing of advanced semi chips in Taiwan. Additionally, the foundry equipment suppliers lead times to deliver fab equipment and investments required to open new fab pose challenges to expand global foundry footprint.

The countries are indulging in inshoring and allyshoring activities to bring manufacturing of chips that would help in derisking geopolitical risks with chip manufacturing. In 2023, the pricing of semiconductor components also posed a significant challenge as price erosion happened due to oversupply of components. Another risk due to global geopolitical situations are the availability of raw materials which have come under restrictions. China has restricted exports of Gallium and Germanium  or the Russia-Ukraine war impacted supply of Neon gas,” added Akshara.

And apart from the pandemic, the chipset making firms went through a lot of additional challenges, which further affected the international supply chain. For instance, in March 2021, the Renesas fabrication plant went up in flames, which halted the microcontroller manufacturing for over three months. This is extremely essential for the automotive industry. After that there was a massive ice storm in Texas in February 2022, which affected the power supply. Therefore, NXP, Infineon, and Samsung fabs failed to operate for several months. Moreover, there was a huge fire in Ukraine that affected the production of semiconductor packaging material. Most importantly, the continuous lockdowns in China reduced the volume of workforce in both electronics components and semiconductor manufacturing plants.

Projected High-Volume Fabs Starting Construction Graph

Highlighting the challenges of global semiconductor supply chain issues, Anku Jain, managing director of MediaTek India said, “The demand of semiconductor chips soared five to seven years prior to the COVID. This is mostly due to rising demand for consumer electronic items, smartphones, cars, and IT hardware products. COVID has just increased the demand to a certain extent. The global semiconductor companies and the foundries have done exceptionally well to increase production rate within a very short span of time. After a massive pandemic scenario, it’s a commendable task by both the manufacturers and the government. In the coming two years, the situation will not only return to normalcy, but the volume of production will increase by two-folds.

While speaking of the entire international semiconductor supply chain, it is important to understand that chipsets are extremely intricate to manufacture and design. There are no sectors, which same amount of investments in both R&D and capital expenditure. The requirement for in-depth technical knowledge and scale has helped in forming a massive global supply chain in which every country performs different functions. For example, the US spearheads the R&D based activities such as electronic design automation (EDA), core intellectual property (IP), chip design, and advanced manufacturing equipment. While the East Asian countries are extremely brilliant in wafer fabrication that requires huge capital investments backed by the government schemes and initiatives. China is at the forefront in assembly, packaging, and testing (ATMP), which does not require much proficiency and investments.

A media report has also added that in the coming ten years, the global semiconductor industry will have to have an investment of $3 trillion in R&D and capital expenditure. In an effort to meet the same, both the government and the industry leaders will have to work together to provide state-of-the-art access to markets, talent, technologies, capital, and make the supply chain more sturdy. Throughout the supply chain, there are about 50 points where one country has more than 65 percent of the international market share. When we speak about the overall semiconductor supply chain, manufacturing is the key. According to a report of Semiconductors Industry Association (SIA), around 75 percent of manufacturing units and suppliers of important materials are located in East Asia and China.

Both the regions are surrounded with geopolitical tensions and high seismic activity. Moreover, the cutting-edge semiconductor manufacturing capacity in 10-nm nodes are concentrated in Taiwan (92 percent) and South Korea (8 percent). To counter the challenges of international supply chain imbalances, governments must unleash market oriented incentive schemes that will help in setting-up more production units, especially in the US as well as expanding the volume of manufacturing sites and supply sources for critical components and equipment. 

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CDIL will be the First Company in India to Introduce Silicon Carbide based Products in the Country Soon

Around ten years back, there was a huge challenge in India in the ESDM and semiconductor manufacturing ecosystem mostly due to lack of proper policies by the government, concentration in the software ecosystem, and most importantly, there is no proper education about the importance of the ecosystem. Now, the government has undertaken various initiatives and unleashed schemes such as Production Linked Incentive (PLI), Scheme for Promotion of Manufacturing of Electronic Components and Semiconductors (SPECS), FDIs etc to boost the industry.

The Imperious Historical Facts that Forced India to Move Generations Behind in Semiconductor Manufacturing

India lost the semiconductor growth race during the late 1980s. But, for the past five to six years, the government has unleashed various schemes, initiatives, and educational programs to boost chip fabs and design. Investments are happening, but there are a couple of grave impediments such as lack of proficient workforce and infrastructures. Currently, it is difficult to compete with countries like the USA, Vietnam, China, and South Korea as they have better policies, subsidies, and cost-efficiency. Apart from huge investment, chip fabrication units require gallons of pure water and uninterrupted power supply.

However, there is a constant price pressure from various international players, mostly China, which is forming an in-house semiconductor program by which 70 percent of locally manufactured chips will be used in all its products by the end of 2025. Industry experts from various associations have stated that India has done exceptionally well in the area of electronics manufacturing and chip design, but now it is the time to set-up more chip fabrication and manufacturing facilities.

Anurag Awasthi, Vice President, Policy, Government Corporate Relations at India Electronics and Semiconductor Association (IESA) said that skilling is always an important requirement to fulfill the goals of Atmanirbhar Bharat. He told CircuitDigest, “The important policies such as SPECS, DLI, and PLI will boost in-house design, manufacturing, and assembly. But, the point is self-reliance in manufacturing, skilling, distribution, and design. Amid the current subsidies proclaimed in Europe and in the US, and the unleashing of the CHIPS Act, Asia will dominate the global market as it has the expertise and the resources to control the volumes of semiconductor production. In an effort to boost economies of scale, a couple of global Asian firms are setting-up their production units in other countries, but it will take more time as the process is intricate and time-consuming.

Awasthi added, “Europe and East Asia are now spearheading the R&D, South Korea and Taiwan dominating the manufacturing/OSAT, and China with a history of monopoly market leading the testing and packaging industry. The international value chains in this domain have crumbled. No country is a central location of all the semiconductor processes, and hence the hurdles in this sector are conspicuous.

Semiconductor Chip

Why India Lost The Semiconductor Growth Journey During The Late 80s- A Historical Perspective.

In an article with the Statesman, Independent Journalist CHOODIE SHIVARAM said that before 1987 India was progressing in this sector at a large-scale and today, it should have its own semiconductor fabrication units. Now, the worst part is that the nation is twelve generations behind. There are some unforgivable reasons due to which India missed the bus numerous times such as bureaucratic lassitude, lack of leadership with a clear vision, improper infrastructures, and corruption. When the silicon revolution started happening during the early 1960s, Fairchild Semiconductor announced to set-up a fab, but bureaucratic fatigue helped them to move to Malaysia. A couple of months after the 1962 Indo-China war, Bharat Electronics Ltd. started a new fab to produce germanium and silicon based transistors.

The demand for these transistors were so high various global companies were lined up to place orders. This is when the cost-efficient integrated circuits (ICs) from Taiwan, South Korea, and China dominated the Indian market and BEL could not compete with the quality and price standards. Several fab units were forced to shut down. In the mid 1980s, there was another revolution in this sector when IISc professor A.R. Vasudeva Murthy in association with BEL formed Metkem Silicon Limited to manufacture polysilicon wafers for electronics and solar cells. Devoid of any proper policies, incentives, schemes, and lack of subsidized power, Metkem failed to manufacture top-notch polysilicon wafers.

Faisal Kawoosa, senior research analyst and founder at techArc said, “The point to be noted is that the country’s semiconductor journey already commenced way back in late 60s. Interestingly, Semiconductor Complex Ltd (SCL) was formed in Mohali in 1976 and started operation in 1984. Initially, the company started functioning with 5,000 nm chips and 800 nm cutting-edge technology and that was the time when countries like Taiwan and China could not even think of competing with India in this sector. In 1989, when a major fire incident broke out in the plant, the country suffered a massive setback. The mysterious fire ruined billions of dollars worth imported equipment and there was a colossal loss of Rs 60 crore.

This is when India’s dream of leading the semiconductor industry shattered into pieces. The intelligence bureau carried out a detailed investigation, but the reasons are yet to be revealed. If all these companies survived until now then, the country could have been the leading destination of chip manufacturing design and there would be no dependence on China, Taiwan, South Korea, and Vietnam,” added Kawoosa.

A media portal, Organizer Weekly, clearly stated that the UPA government never took the matter seriously of growing the semiconductor industry. Numerous global companies started operating their units in the southern parts of India in 2005, but these companies faced immense challenges in terms of the manufacturing equipment as they were to be imported from the US. In the end of 2013, the World Semiconductor Council penned a letter to the then government for possible cooperation. There were no subsidies and incentives given by the government to these companies and moreover, a huge import duties were also charged. This is when China again played the game of monopoly business and capitalized on this front by providing all kinds of financial assistance to global companies to start manufacturing in their country.

In an effort to meet the escalating demand, both European and the US semiconductor firms have carefully analyzed the Indian design talent and used the facilities in Taiwan for mass production, claims science commentator Dinesh C. Sharma. SCL, again failed to fully commence its manufacturing facility again, but nonetheless during the time of technological proscription, the company started producing chips for strategic ventures in defense and aerospace. Basically, after 1989, the business dynamics have altered all over the globe and the fact is that technology and equipment in this industry changes very rapidly. In India, the in-house demand was very poor and ample investments were not being provided.

Highlighting the historical aspects of India’s semiconductor industry growth, Minister of state for skill development & entrepreneurship and electronics & IT Rajeev Chandrasekhar ahead second edition of Semicon India 2023 event told the media that India missed the semiconductor bus due to lack of vision, clear strategy, and clarity by the previous governments. Speaking to the media prior to the conference, the minister added that the current government has made a lot of progress in this sector.

Semiconductor Chip Manufacturing

How India Is Now Aiming To Lead The Chip Manufacturing Race In The Coming Ten Years

After monitoring and analyzing the current challenges, the US based global firm Intel back in 2014 ignored to set-up its production unit in the country. Then, the government has started unleashing various schemes such as Scheme for Promotion of Manufacturing of Electronic Components and Semiconductors (SPECS), National Policy On Electronics (NPE), Modified Special Incentive Package Scheme (M-SIPS), and the much-awaited semiconductor incentive scheme of Rs 76,000 crore has been approved by the government back in December 2021 to boost semiconductor industry growth.

According to a previous report of CircuitDigest, the government has earlier notified that they are likely to approve another Rs 25,000 crore scheme to grow chip manufacturing. Under the Modified Semicon India Program, the fresh new applications were being invited by the union government from Jun 1, 2023 onwards in an effort to grow the nation’s display and semiconductor fabs. India Semiconductor Mission (ISM) will receive the applications and is tasked with leading the nations’ $10 billion semiconductor manufacturing program.

On Jul 21, 2023, in a written response to the Rajya Sabha, Rajeev Chandrasekhar has approved the beginning and restructuring of SCL Mohali again and he aims to turn it into a brownfield semiconductor manufacturing facility. And on the same day, the Odisha cabinet ministry has also approved the state’s semiconductor manufacturing and fabless policy by which the state cabinet is looking forward to magnetizing global investors and set-up electronics/chip manufacturing unit in the eastern front of the state. Speaking of this policy, the state is anticipating at least one chip producing unit and scores of fabless design operations.

Other than this, Rapidus Corporation, Japan's chip manufacturing firm has formed an MoU with the Indian government recently and then as per the recent report of the Economic Times, HCL group has also proclaimed its intention to set-up an assembly, testing, marking, and packaging (ATMP) unit with an investment around US$200-300 million. Now, although Foxconn canceled its $19.5 billion JV with Vedanta, both the companies announced plans to form its own chip unit. And last but not least, the US based Micron Technology has finally signed an agreement with the Gujarat government for setting-up a chip production facility with an investment of US$2.74 billion. The manufacturing unit will commence its operations in just eighteen months and it will provide direct employment to 5,000 people.

Speaking of the semiconductor growth in the coming decades, Amrit Manwani, managing director at Sahasra Group of Industries said, “The semiconductor industry is growing in India at an extraordinary level. By the end of 2026, the chip market in the country will reach around 55 billion that will augment at a CAGR of 20 percent from the period between 2022-2026. Now, speaking of the historical factor, the growth rate could have been tripled if we could have maintained that momentum and pace from the early 70s. As an entrepreneur I feel during that time, there was a lack of education and programs about how important industry electronics and semiconductors are in the future.

Conclusion

When we speak of India turning into a global manufacturing hub for chips, there is a huge scarcity of talent and skilled workforce. And obviously, the period after 1987 until 2014 was a big hindrance in boosting the growth of the industry. The nation has faced various challenges in setting-up fabrication facilities required for large scale manufacturing. Now, with the increased pace of digitization and the growing demand for electronic products, India is still a huge importer of computer and memory chips and a couple of industry insiders have opined that the country is investing more on chip imports than oil. Obviously, to decrease that import reliance, India must find ways to develop semiconductor manufacturing for which both the union and the state governments must unveil impeccable policies, infrastructures, initiatives, and schemes crafted for scalable manufacturing. In order to meet the same, the nation can carefully analyze the case studies of the Asian country markets.

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Evolving Battery Management Systems

Submitted by Staff on

Lithium battery systems are increasingly moving to higher capacity and increased voltage levels as the trend toward electrifying mobility, tools, and industrial equipment continues. Though excellent for enhanced mobility and productivity, these higher battery cell counts and voltage levels mean that battery management system (BMS) technology needs to advance to accommodate this trend. Given the complexity, increased cost, and safety requirements of the latest electrified devices and equipment, BMS must also have greater capability and features for enhanced communication functions, fuel gauging, cell balancing, timing, and accommodating various lithium battery chemistries.

Primer On Lithium Battery Technology

Lithium batteries are energy storage devices stored within chemicals that are trapped in battery cells with a positive electrode (cathode) and a negative electrode (anode). Lithium-ion batteries are based on materials with layered crystalline structures where the lithium ions can migrate between layers, known as intercalation compounds. The discharge cycle of a lithium-ion battery sees the lithium ions migrate from the anode to the cathode, which induces electrons to move in an opposing direction from the cathode to the anode. This allows for energy transfer for the battery's terminals and the electrical load. The voltage level and current output at the lithium battery terminals depend on the number of lithium ions that are migrating. When voltage levels begin to sag, the current is reduced, as the number of lithium ions available to migrate decreases.

The charge cycle of a lithium battery works in the opposite way, where inducing a voltage at the terminals of the lithium battery causes the lithium ions to reverse their migration across the electrolyte and re-embed within the negative electrode. Modern lithium batteries can be made of a variety of different intercalation compounds for the cathode, the most common being lithium-ion (li-ion), lithium-ion polymer (LiPo), and lithium iron phosphate (LiFePO4). The negative electrode of lithium batteries is often graphite. However, ongoing experimentation and efforts exist to develop higher performing batteries using various anode, cathode, and electrolyte materials and technologies.

Given the highly reactive nature of lithium batteries, it is necessary to monitor the batteries' temperature, current, and voltage characteristics during charging and discharging. Without proper battery monitoring and control, a lithium battery cell, even if it is made of "safer" or more stable lithium compounds, may reach a state of thermal runaway. This runaway could cause damage to the cell electrodes or housing, possibly leading to an uncontrolled chemical reaction where the battery cells could catch fire or even explode.

Many lithium battery systems are composed of several lithium battery cells in series to reach higher voltage levels and in parallel to achieve higher current output levels. Given the tolerances in fabrication, inconsistent aging of lithium batteries, and many other factors, the discrepancies between the battery voltage and current characteristics can result in several possible performance degradations or battery damaging conditions. For instance, if a battery cell is in series or parallel to other lithium battery cells and isn’t performing to specification, that cell may act as a load. This results in the degraded battery drawing current, while the voltage of the other cells may be reduced below a safe threshold.

These discrepancies are why cell balancing technology is critical in lithium batteries with more than one cell. Systems that incorporate battery monitoring, control, and cell balancing are commonly known as battery management systems (BMS). As lithium battery technology has advanced and become more widely used, BMS technology has also advanced to ensure greater safety, performance, and longevity for lithium battery systems (Figure 1).

Battery Management System Block Diagram
Figure 1: High-level diagram of a battery management system (BMS) for lithium battery technologies. (Source: Qorvo)

Trends in New Lithium Battery Systems

For many power garden tools, construction tools, mobility, and industrial equipment, gasoline and corded electric systems have dominated the markets for over a century. However, the developments in lithium battery technology have led to the transcendence of electric battery-powered tools for everything from mobility to equipment to everyday necessities. Examples include battery electric string trimmers, blowers, chainsaws, SDS drills, scooters, e-bikes, motorcycles/mopeds, concrete saws, and portable welders. These battery electric systems are commonly made with 20V, 40V, 60V, and 80V, with higher voltage levels likely becoming popular.

The success of battery-operated tools and mobility systems naturally results in even higher performance, which necessitates increasing the voltage levels, capacity, and current capability of the lithium battery systems powering these devices. Due to lithium technology's cell voltage level limits, increasing the number of cells in series is the only way to reach higher voltage levels. Drawing too much current from or dumping too much current into a lithium cell can result in cell damage and catastrophic failure. Increasing the current output/input capability will increase the number of lithium cells in parallel. Therefore, enhancing the overall capacity of a lithium battery system may require even greater numbers of parallel series of cells or much higher capacity lithium battery cells.

Intelligent BMS Step Up to Meet the Challenge of Modern Lithium Battery Systems

Given that lithium battery systems are being developed to push the performance of battery electric systems for various applications—from electric vehicles (EVs) and electric backup generators to autonomous mobile robots—BMS technologies must also advance to accommodate these new higher voltage levels, capacity, and current input/output battery systems.

Qorvo's intelligent BMS (PAC22140/PAC25140), with an integrated microcontroller unit (MCU) and cell balancing technology (Figure 2), is a natural evolution of simple BMS that merely monitored the battery and shut off charging when either temperature or voltage levels reached unacceptable thresholds. These new BMS chips can monitor 10-series (10S) to 20S li-Ion, Li-Polymer, and LiFePO4 battery packs, including the most common lithium battery technologies. Qorvo’s new BMS include a FLASH-programmable MCU (Arm® Cortex®-M0) with power management, current/voltage/temperature sense, drive circuits for charge/discharge FETs, and protection fuses. Moreover, these intelligent BMS also include built-in UART/SPI, I2C/SMBus, and even CAN communication on some units.

Features of Qorvo Intelligent BMS
Figure 2: Feature set of Qorvo Intelligent BMS with an integrated microcontroller unit (MCU) and cell balancing. (Source: Qorvo)

Since it is essential to evaluate new BMS chips and familiarize oneself with their programming and control aspects, Qorvo provides an evaluation kit (PAC22140EVK1 and PAC225140EVK1) for these chips.

These evaluation kits are complete hardware solutions for evaluating the new intelligent BMS devices and also enable solution development with access to all of the device's signals and all the necessary circuitry to energize the MCU and internal peripherals (Figure 3).

Qorvo PAC22140EVK1 evaluation kit
Figure 3: Qorvo PAC22140EVK1 evaluation kit used to develop an intelligent BMS for a 10S lithium battery pack. (Source: Qorvo)

Conclusion

The growth in popularity and utility of lithium battery electric systems has pushed the boundaries on voltage, capacity, and current capability. With greater series cell counts and higher user performance expectations, these new battery electric systems must be appropriately managed and cell-balanced with the latest intelligent BMS technology. Qorvo's new intelligent BMS technologies aid in developing new BMS solutions that augment present lithium battery technology with more efficient cell balancing, monitoring, and protection features.

Original Source: Mouser

About the Author

Principal of Information Exchange Services: Jean-Jacques DeLisle Jean-Jacques (JJ) DeLisle attended the Rochester Institute of Technology, where he graduated with a BS and MS degree in Electrical Engineering. While studying, JJ pursued RF/microwave research, wrote for the university magazine, and was a member of the first improvisational comedy troupe @ RIT. Before completing his degree, JJ contracted as an IC layout and automated test design engineer for Synaptics Inc. After 6 years of original research—developing and characterizing intra-coaxial antennas and wireless sensor technology—JJ left RIT with several submitted technical papers and a US patent.

Further pursuing his career, JJ moved with his wife, Aalyia, to New York City. Here, he took on work as the Technical Engineering Editor for Microwaves & RF magazine. At the magazine, JJ learned how to merge his skills and passion for RF engineering and technical writing.

In the next phase of JJ’s career, he moved on to start his company, RFEMX, seeing a significant need in the industry for technically competent writers and objective industry experts. Progressing with that aim, JJ expanded his companies scope and vision and started Information Exchange Services (IXS).

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