“This paper analyzes the loss composition of the inverter, compares the performance of the fourth generation IGBT and the seventh generation IGBT through thermal simulation, and finally verifies the conclusion through experiments. Under the same working conditions, the loss and junction temperature of IGBT7 are significantly lower than those of IGBT4, so that the volume of the inverter can b...
“Which Wi-Fi technologies are supported by ordinary households? What will happen in the near future? Table 1 shows the development history of Wi-Fi and its relationship to the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard. The IEEE develops wireless standards and many others, the Wi-Fi Alliance supports Wi-Fi standards (including certification), including those developed by the IEEE, and governments allocate frequencies that can be used.
Key Considerations for Wi-Fi Standards for IoT Products
Which Wi-Fi technologies are supported by ordinary households? What will happen in the near future? Table 1 shows the development history of Wi-Fi and its relationship to the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard. The IEEE develops wireless standards and many others, the Wi-Fi Alliance supports Wi-Fi standards (including certification), including those developed by the IEEE, and governments allocate frequencies that can be used.
Table 1: IEEE and Wi-Fi Standards at a Glance The second column shows changes in common terms
10-year-old routers aren’t new, and today that means they’re IEEE 802.11 a/b/g/n routers — although the latest standard is IEEE 802.11 ax, also known as Wi-Fi 6. If the target customer is not using a router with the latest technology (note: most Wi-Fi chips provide backward compatibility), then they will not be able to take advantage of the latest features of these Wi-Fi chips. Fortunately, both the infrastructure and adoption of Wi-Fi 6 and 6E are increasing.
For customers who can use Wi-Fi 6 and 6E technology, they can enjoy huge performance benefits. These are also important factors to consider. As Wi-Fi becomes more and more important to IoT devices, and as customers have more and more IoT devices in their homes, congestion challenges begin to emerge and intensify. Recognizing these challenges, the Wi-Fi Alliance has been working on them for years. With the help of Infineon and other semiconductor companies, the Wi-Fi Alliance created the Wi-Fi 6 standard.
Wi-Fi 6 offers new features that will help improve product performance, reliability or quality of service (QoS), enabling more connected products in the home and reducing energy consumption to extend battery life for battery-powered products time. These key performance indicators (KPIs) are very important considerations for products with high reliability, long distance and low power consumption requirements. Recently, clear, uncongested spectrum in the 6 GHz band has been approved for Wi-Fi 6E, and IoT products can leverage this spectrum to enable connections with higher reliability and lower power consumption.
Figure 1: Quantifiable differences and performance differences between versions of Wi-Fi
Faced with new standards and differences between previous generation devices and state-of-the-art solutions, product managers need to consider technology offerings that provide them the flexibility to continuously develop Wi-Fi products, from Wi-Fi 4, 5 to 6, and even 6E without the need for a complete redesign between product iterations as the product line is upgraded. When it comes to Wi-Fi, portability from one generation to the next is critical. Wi-Fi 4 is not the end, nor will Wi-Fi 5 and Wi-Fi 6. Wi-Fi products designed today need to take into account that as Wi-Fi evolves from Gen 5 to Gen 6 and beyond, future offerings of Wi-Fi will provide software portability and an interface consistent with these products. With the increasing number of threats from dangerous elements, security has become the focus of Wi-Fi 6E upgrades. Infineon takes this security to a higher level.
Compared to the previous generation technology, Wi-Fi 6 reduces standby power consumption by 50%. For most use cases in the home, car or factory, this means a huge increase in battery life. In addition, with Wi-Fi 6, it becomes possible to integrate other network-related technologies, such as a combined solution of Wi-Fi 6 and Bluetooth 5.2. However, there are very few companies in the world that can develop such a solution and provide a first-class user experience for this coexistence, and Infineon is precisely such a company. This means that Infineon can design and deliver uniquely differentiated products (including Wi-Fi) and reduce cost pressures in system design.
It’s just as important to choose a partner who can provide the best choice in a variety of options and can make the best choice in each category. With decades of experience and billions of chips shipped, Infineon Wi-Fi solutions are fully qualified, so users can rely on Infineon’s Wi-Fi 6E certified solutions with confidence get the performance it needs. Infineon, regarded as a trusted partner by several top IoT companies, invests in simplifying designs and reducing time-to-market in its systems approach based on complex and highly integrated IC solutions .
closely related to the future
From Wi-Fi 4, Wi-Fi 5 to Wi-Fi 6, and now Wi-Fi 6E, performance has improved with improvements in latency, battery life, distance, and throughput (speed) user experience. These improvements and user demand are expected to provide a strong impetus for product managers to implement Wi-Fi 6E in new products. With extensive experience in Wi-Fi performance improvements from the start, Infineon is working to create the best Wi-Fi user experience based on the performance users expect and the security they need.
When the Wi-Fi Alliance announced its Wi-Fi 6E certification program in January 2021, it said Wi-Fi 6E would lead the next 20 years of Wi-Fi. With the acquisition of Broadcom’s Internet of Things (IoT) business in 2016 and Cypress Semiconductor in 2020, Infineon has played a key role in the development and implementation of Wi-Fi from the start. With its leading position in the Wi-Fi field for nearly 20 years, Infineon has provided technical guidance in the formulation and promotion of industry standards, and continues to maintain its leading product position – its IoT chip shipments have exceeded 3 billion .
– Sid Sha (author of this article)
Vice President Marketing, Infineon