This year’s PowerUP Expo Virtual Conference has seen many speakers talking about wide-bandgap (WBG) semiconductors, energy trends, and low-power aspects. Efficiency is a driving force in all industrial sectors, including consumer. Thanks to their savings in size, weight, and cost, as well as higher efficiency, gallium nitride and silicon carbide power devices are making major advances beyond several applications. In the last couple of decades, the worldwide SiC and GaN scenes have been characterized by development and growing industry acceptance. Meanwhile, other semiconductor devices serve the needs of motor drive and power control. As efficiency standards for these applications improve, cost-effective and energy-efficient control solutions, test and measurement solutions, and transducers/sensors simplify design and provide a high level of integration, as well as enhanced safety features and certified isolation capabilities.
In this issue, we propose several topics, with a section about PowerUP regarding the proceedings. Electromagnetic-compatibility (EMC) compliance is often the last hurdle that an electronic device has to overcome in the development process. It is not rare at all for circuit-specific and layout-specific changes to be required in the process. Gerhard Stelzer, senior technical editor at Würth Elektronik eiSos, analyzes the new EMI Filter Designer, which can be used to design EMC filters for conducted differential-mode interference signals. The emergence of cloud-based internet services has initiated a strong growth of processing power, creating a clear need for highly efficient and compact server power supplies. We will analyze how to meet the design requirements of power supplies using silicon and WBG switches.
The main topics of the PowerUP proceedings are WBG manufacturing and design features. We summarize key aspects of SiC fabrication technology and outline non-CMOS-compatible processes that have been streamlined to allow for mass SiC device fabrication in conventional mature Si fabs. GaN has become the de facto material in third-generation semiconductors. However, making GaN wafers in the quality you need and the thermal resistance you desire are challenges that fabs are still trying to overcome.
Moreover, we’re dealing with a potentially more serious issue: climate change. As the world advances toward a sustainable, greener future, many countries are powering down fossil-fuel energy generation in favor of renewables. Industry areas such as energy, mobility, and manufacturing are important to environmental success. Disruptions in various areas are required to decrease, control, and manage the emissions problem.
You can check out the e-book on power electronics website.