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
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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

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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
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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

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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
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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

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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
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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
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Date:
04/07/2022
AC Losses in Magnetic Components

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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
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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
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Date:
04/01/2022
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