New! ADI explains the 5 major application power innovation trends, the future of power development will be like this~

ADI Power Products China Marketing Director Liang Zaixin (Lorry) started the Power Workshop

When talking about the industrial application field, which accounts for more than 40% of ADI's power business, Lorry concluded at the beginning that "the real essence and foundation of Industry 4.0 is more about how to provide real-time control, software-configurable I/O, and the reliability, safety and healthy operation of all these devices."

To achieve higher productivity, Industry 4.0 applications need to meet the following innovative requirements: flexibility, efficiency, communication, safety, and reliability. All industrial product applications are inseparable from power supplies. In terms of high power efficiency, small size, and low EMI, ADI can provide very strong support and a series of innovative products to meet the safety and reliability requirements of power supplies in different industrial application fields.

About 40%+ of ADI's entire power business comes from the industrial sector

As for the ultra-low EMI of power supply which is difficult to achieve, Lorry cited the latest generation LT8614 chip using Silent Switcher technology, which not only optimizes the magnetic field closed path through two reverse current loops, but also controls the ringing of SW rising edge to be very small through system loop optimization. Coupled with its highly optimized packaging process, its EMI is quite low. In addition, it also greatly reduces ripple, solves the noise problem, and makes the system reliability and stability excellent.

Lorry said that in China, most customers in the fields of robotics, industrial control, and even automobiles are very interested in Silent Switcher technology, because in the past, almost all industrial or automotive customers had to spend half a year to make rectifications just to solve the EMI certification problem, and only after passing the rectifications could they be put on the market. The emergence of Silent Switcher technology has saved our customers more than half a year.

In order to handle the situation of large voltage fluctuations in special industrial applications, ADI has also launched a very wide voltage isolated power supply (as shown in the figure above, the power supply width is 20V to 540V). At the same time, in order to reduce the design space of industrial customers and boards, ADI has also designed a highly integrated power module. This can greatly save customers' costs on device procurement, production reliability and materials.

Whether it is power management, powertrain, infotainment system, headlights, etc., "safety" has always been a key word in the transformation of the automotive power product field. In the innovative solutions provided by ADI, this may be reflected in the ultra-low noise (electromagnetic interference), active battery balancing and energy optimization (safe driving for longer distances), high and low voltage bidirectional conversion, new surge and high voltage protection mechanisms, and other innovative technical features mentioned in Lorry's speech.

For example, in response to the coexistence of different voltages in automotive systems, the design concept of LTC3871 is as Lorry introduced, "The increase in current brought about by the increase in power of increasingly complex on-board electronics has led to thicker cables providing greater current capabilities. The emergence of the 48V system is to optimize cables and body wiring, but many system equipment still cannot migrate to the 48V system in the short term. Therefore, for quite a period of time, there will be a situation where the 48V system and the 12V system coexist. Connecting a 48V battery pack and a 12V battery pack can provide bidirectional power supply and manage the 48V and 12V systems. This can ensure the safe operation of the entire automotive system."

To this end, Lorry also showed the media a system board like the one shown above, and explained: "Its conversion power is 2.5 kilowatts and can provide very good stability. This is a very standard configuration in the new generation of 48V system cars, and can also achieve bidirectional voltage conversion."

From the perspective of the safety and reliability of the automotive system, the battery and increasingly complex systems will cause instantaneous high voltage when the car is started or when it is disturbed by an unexpected disturbance, which is likely to cause damage to the components. The traditional solution is to add a TVS tube, but it has disadvantages such as large size and relatively high weight. So how does ADI solve this problem?

As we all know, from 2G, 3G, 4G to 5G, ADI has been heavily involved in every iteration of the communication system, whether it is RF devices or power devices.

The current 5G communication system requires very high power density; in addition, the power consumption of the chip is also a problem. Another problem is how to improve the conversion efficiency.

ADI has also made many other improvements in the innovation and adjustment of power supply technology for communication applications. For example, by combining the advantages of ideal diodes to support hot swapping, the communication system can achieve better stability than before. And through the power management system with a digital interface, the power supply status, voltage, current, temperature, etc. of each channel can be recorded, and even the output voltage can be controlled. Especially when the system is unstable, the PSM can be used to know where the circuit fault is. Therefore, the measurement and output adjustment functions of the PSM are increasingly reused in the communication field.

In addition to PSM, POE (Power over Ethernet) is also widely used in the communication field. POE can transmit data and power through network cables. Lorry shared: "ADI has now launched a 150-watt POE solution. The biggest advantage of this solution is that it can provide up to 150 watts of power for communication applications and layouts. The larger the capacity, the more power is required. 150 watts can provide a very perfect solution, which is also a strong technical platform for us in the field of communications."

Energy is an important topic related to the national economy and people's livelihood. ADI can provide a good supporting power technology solution for smart grids, renewable energy generation and storage, enterprise energy management, electric vehicle charging pile infrastructure, etc.

For example, the national grid transmission tower usually installs an FCI to monitor parameters, but how to solve the power supply problem of high-voltage towers? Lorry explained: "ADI has a very complete solution for this kind of FCI. It is usually powered by a transformer or solar energy. Through the application of high-performance MPPT maximum power point tracking and charging management devices, the battery can obtain the maximum solar energy under the same lighting conditions."

In order to ensure that the system is powered on, ADI also proposed using supercapacitors as backup power supplies and provided them with complete energy storage and management solutions. For example, LTC3350 monitors four farad capacitors, not only balancing and charging/discharging the capacitors, but also supplementing the internal resistance of the capacitors and automatically balancing the energy of all capacitors. It is very powerful.

ADI has done a lot of research to solve the problem of continuous and convenient power supply for smart wearable devices and more IoT terminal nodes. Can vibration, temperature difference, light, magnetic field, etc. be turned into the required energy? ADI has also launched a series of innovative products, such as LTC3108 and LTC3588.

In addition, ADI has also achieved many major breakthroughs in other IoT directions. For example, optical and motion detection, impedance, biopotential and signal conditioning technologies have created the world's advanced medical care technology in wireless and wearable vital signs monitoring (VSM). And through precise geographic location detection, intelligent data collection and sensor fusion technology, real-time autonomous decision-making, higher resource efficiency, and simpler smart farms connected to the interconnected farm ecosystem.

Due to space limitations, Xiao A cannot present all of Lorry’s wonderful speech at once. Please pay attention to our follow-up reports! In short, whether it is industry, automobile, communication field, energy, or IoT, power is the foundation of everything. Lorry concluded: "ADI Power By Linear Department considers how to innovate, how to provide high-performance solutions, and can provide the best technical support, reliability and stability in the world."

Follow the Easter eggs at the end of the article~

At this Work Shop, Xiao A was fortunate enough to meet Professor Yang Jianguo, a famous analog electronics teacher at the School of Electrical Engineering of Xi'an Jiaotong University and the author of "Hello, Amplifier", whom he had admired for a long time.

Professor Yang Jianguo, a famous analog electronics teacher, officially released his new book "New Concept Analog Circuits" to the media

Teacher Yang took the opportunity of Power Workshop to officially release his new book "New Concept Analog Circuit" to the media, which took four years to complete. The book is very interesting and humorous, with a large amount of pictures and texts, very in-depth, and rich in practical cases. The new book also uses dozens of pages to introduce several topics in power supply design, involving linear power supplies, LDOs, reference voltage sources, and reference current sources.

"New Concept Analog Circuits" will be officially launched this Friday on the two public accounts of "ADI Campus Plan" and "Analog Devices" and "Analog Devices (Zhihu)". Fans who want to get this book, please pay attention to the corresponding public accounts in time to get the new book as soon as possible.

Follow ADI and get "New Concept Analog Circuit" as soon as possible