Page 3 - PEN eBook October 2025
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EDITOR'S LETTER


          Engineering Tomorrow:
          GaN, SiC, and the

          Future of Sustainable

          Energy Systems                                                                   Signal


          Gallium nitride has moved  from niche  to mainstream in just a  few years. Once   Processing
          limited to niche applications such as fast chargers, GaN now powers data centers,   in Embedded
          solar inverters, and electric-mobility systems. Eric Persson, senior principal engineer,
          and Paul Wiener, strategic marketer, both at Infineon Technologies, explore how GaN   System
          has evolved from niche to mainstream and why Infineon’s CoolGaN stands out in
          both high- and medium-voltage domains. Readers can expect insights into device
          structures  and  gate  robustness  but  also  a  look  at  Infineon’s  IDM  manufacturing
          leadership and 300-mm wafer roadmap.
          The electronics industry today stands at the intersection of powerful forces: the
          urgent demand for efficiency in electric mobility, the drive toward sustainable IoT
          proliferation, and the relentless momentum of startup-driven innovation. Each of              JUNE/JULY
          these domains underscores not only  technological opportunity but also societal                 2025
          responsibility. In electric  vehicles, silicon carbide power devices are reshaping
          traction inverter design. By enabling higher power density and reducing system   ALSO IN THIS ISSUE
          losses,  SiC  extends  vehicle  range  while  simplifying  cooling—addressing  two  of   Smart Building
                                                                                    Management System
                                                                                    Integration Enhances
          the toughest challenges in EV adoption. In this issue, we highlight recent work by   Energy Efficiency,
                                                                                    Guest Comfort
                                                                                    PAGE 12
          Shanghai  Maritime  University’s Yan  Zhang,  who  developed  a  thermal  impedance   How AI Is Remodeling
                                                                                    the IoT
                                                                                    PAGE 14
          model  for  SiC  modules.  Beyond  mobility,  SiC’s  unique  thermal  resilience  and   Integrating Classical
                                                                                   Control Electronics
          low erosion rates also position it as a  transformative material  for  the extreme   Into Quantum
                                                                                   Computing
                                                                                   PAGE 19
          environments of fusion reactors—a modern alchemical solution turning material
          limits into new possibilities.
          Meanwhile,  IoT systems  for smart buildings  and  homes are revolutionizing how
          energy is consumed and conserved, offering measurable reductions in the carbon
          footprint  of  residential  and  commercial  infrastructure.  Yet  the  proliferation  of
          battery-powered IoT devices presents an environmental paradox: mounting
          e-waste. Advances in energy-harvesting technologies, as emphasized by e-peas’s   Signal Processing in
          Bruno Damien, offer a path forward: self-sustaining IoT devices that not only reduce   Embedded Systems
          environmental impact but also help OEMs anticipate incoming regulatory pressures   PAGE  7
          around battery waste.
                                                                                      VOL 1 - NO 2 – JUNE/JULY 2025
          But  systemic  change  doesn’t  come  from  established  players  alone.  Startups
          remain the  accelerators  of transformation.  Sweden  exemplifies  how  ecosystems
          uniting  academia,  government,  and  industry  can  yield  global  impact.  The  story
          of Hexagem, a spinout  from Lund University leveraging decades of research in
          III-nitride epitaxy, shows how deep science can be harnessed for breakthroughs in
          both power electronics and microLED displays. On the other side of the Atlantic,   Smart Building Management
          Lyten is pioneering advanced materials with its proprietary 3D Graphene technology.   System Integration Enhances
          By engineering graphene at the molecular level, Lyten is unlocking new frontiers in   Energy Efficiency, Guest Comfort
          performance and sustainability, most notably in lithium-sulfur batteries.
          As  the need  for sustainable energy soars, engineers are also looking upward.   How AI Remodeling the IoT
          Once the realm of science fiction, space-based solar power—beaming energy to
          Earth  via microwaves or lasers—is moving closer  to reality.  The shift  to orbital
          energy generation underscores how the boundaries of green energy innovation are   Integrating Classical Control
          expanding far beyond terrestrial limits. And speaking of space, this issue also dives   Electronics Into Quantum
          into radiation-hardened GaN FETs for high-power satellite and propulsion systems   Computing
          in an exclusive interview with EPC Space.

          Yours Sincerely,
          Maurizio Di Paolo Emilio, Ph.D.
          Editor-in-Chief, Power Electronics News
          and embedded.com



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