Powering Communications

    April 2022
    Expanded Family of Rugged Routers & Switches for Enhanced Edge Computing
    ­Elma Electronic Inc. has added three new models to its NetSys family of rugged, secure networking systems that facilitate edge computing in a number of mission-critical applications. Utilizing an onboard encryption module that offloads packet encryption and decryption from the routing engine, the routers pr
    . . . Learn More
    Date:
    04/25/2022
    Bringing WBG technology to the next level: Part 2 of 4 Editorial Series sponsored by infineon: Revolutionizing the next-gen power conversion applications

    Click image to enlarge

    Figure 1. Cross-section view of Infineon’s CoolGaN™ GIT device structure

    Introduction Gallium Nitride (GaN) technology plays a major part in the wide bandgap revolution currently sweeping the semiconductor industry and manufacturers are racing to enter this burgeoning market. While the top-level advantages of using GaN devices in power electronics applications are clear (including higher switching frequencies, better performance at high temperatures, and lower power losses), the more subtle but nonetheless important differ
    . . . Learn More
    Date:
    04/14/2022
    Bringing WBG technology to the next level: Part 3 of 4 Editorial Series sponsored by Infineon: The fundamental game-changers for breakthrough SiC designs

    Click image to enlarge

    Figure 1. Comparison of planar and trench MOSFET structure

    Introduction Society’s demand for energy is continuously increasing. A plethora of digital content is consumed every day, appliances are connected via the cloud, and vehicle electrification is experiencing a renaissance – all of which are contributing to this energy demand upsurge. At the same time, carbon emis
    . . . Learn More
    Date:
    04/14/2022
    Bringing WBG technology to the next level: Part 1 of 4 Editorial Series sponsored by Infineon: Wide bandgap reliability is all about understanding how and why failures happen

    Click image to enlarge

    Figure 1. Examples for extrinsic defects in an amorphous layer, mathematically modeled via a local thinning effect in the gate-oxide of SiC devices

    Introduction The unique properties of Gallium Nitride (GaN) and Silicon Carbide (SiC) devices make them increasingly popular alternatives for silicon in power electronics applications. The appeal of SiC devices lies in their ability to offer unipolar device concepts with low switching losses at high voltages, while GaN devices can switch at much higher frequencies. Although these properties enable smaller
    . . . Learn More
    Date:
    04/08/2022
    Sixteenth Brick DC/DC Delivers 100 W Down to 30 V Input
    Flex Power Modules has added to its PKU-D series of low-profile sixteenth-brick DC-DC converters with the PKU3913D, a 100 W rated part with an extended input range down to 30 V and regulated output of 12 V/8.3 A. The intended application is for nominal inputs of 48 V or 54 V with possible long cable lengths and
    . . . Learn More
    Date:
    04/07/2022
    AC Losses in Magnetic Components

    Click image to enlarge

    Figure 1. Typical B-H curve from positive saturation to negative saturation. When H is zero there exists Br which requires -Hc to return to zero. The area within the loop is core loss per cycle

    What are AC Losses and why are they important? This paper discusses the physical effects and which issues must be observed by design engineers. Furthermore, an approach to determine AC losses with unmatched accuracy is being introduced. In 1892 Charles P. Steinmetz, working for General Electric presented his no
    . . . Learn More
    Date:
    04/01/2022
    The Future of 5G+ Infrastructure Could be Built Tile by Tile

    Genaro Soto Valle, Manos Tentzeris, Kexin Hu, and Yepu Cui with the fabricated proof-of-concept tile arrays and inkjet-printed tile arrays.

    5G+ (5G/Beyond 5G) is the fastest-growing segment and the only significant opportunity for investment growth in the wireless network infrastructure market, according to the latest forecast by Gartner, Inc. But currently 5G+ technologies rely on large antenna arrays that are typically bulky and come onl
    . . . Learn More
    Date:
    04/01/2022
    Archive

    Power Systems Design

    146 Charles Street
    Annapolis, Maryland 21401 USA

    Power Systems Design

    Published by Power Systems (PSD) serves all aspects of the Power Electronics market including but not limited to Power Conversion, Power Management, Intelligent and Embedded Motion, Automotive, Renewable Energy, Energy Efficiency and Lighting. PSD is published 10x per year in English with separate print editions for Europe and North America and is published 6x per year in China. PSD Apps are available for Android & iOS. Additionally qualified power engineering professionals may subscribe and receive PSD daily PowerSurge newsletters.