Powering Communications

October 2021
Powering Clustered AI Processors

Click image to enlarge

Figure 1: PRM™ and VTM™ are the building blocks of FPA. PRMs are selected based on the system input voltage range and power requirements; VTMs are selected based on the output voltage range and current requirements. The PRM can be mounted anywhere in the system where convenient; the VTM should be mounted as close to the processor core as possible

The recent introduction of new clustered AI ASIC processor based supercomputers are pushing the boundaries of power delivery networks to levels that were never imagined just a few years ago. With current levels approaching 100 kiloamps/ASIC cluster, innovation is needed across power system architectures, topologies, con
. . . Read More
Date:
10/27/2021
Delivering a Complete Active Power Factor Correction Solution in a Single Package: Part 2 of 4

Click image to enlarge

HiperPFS-4 with Integrated 600 V Qspeed Diode Application

Two of the main issues for modern power supply designers are the elimination of unwanted line harmonic currents and ensuring a power factor that is as close to unity as possible. Unwanted harmonics can cause transmission equipment to overheat and pose interference challenges that must be addressed later; both a
. . . Read More
Date:
10/26/2021
A Quicker, More Efficient Way to Market for BLDC Designs: Part 1 of 4

Click image to enlarge

BridgeSwitch Application

Electric motors are currently the largest consumers of electricity in the world by a large margin. The Energy Research Centre of the Netherlands (ECN) estimates that 45% of all electricity generated globally is consumed by electric motors. Therefore, as part of the push towards higher efficiency, legislation is
. . . Read More
Date:
10/26/2021
Don’t Stress with Nomophobia: Part 4 of 4

Click image to enlarge

InnoSwitch3-PD

If we didn’t know it before Covid-19, we do now: always being connected via your smart mobile device is essential. Track and Trace – scan the QR code, order online, pay without cash, watch an instructional video, send a selfie, use an app to summon a taxi, or count your steps as part of a fitness program. He
. . . Read More
Date:
10/25/2021
Enhance AC Line Switching Efficiency and Reliability in HBA and Smart Home Applications by Using Lossless Zero-Cross Detection: Part 3 of 4

Click image to enlarge

LinkSwitch-TNZ

Optimizing the performance of devices that turn AC line power on and off is an important consideration in a growing variety of applications, including home/building automation (HBA), Internet of Things (IoT)-enabled appliances, smart switches and plugs, dimmers, and occupancy sensors, and especially in designs tha
. . . Read More
Date:
10/25/2021
Wireless MCUs Support New Bluetooth 5.3 Low Energy Spec
Renesas Electronics Corporation announced that it is developing new microcontrollers (MCUs) that will support the recently released Bluetooth 5.3 Low Energy (LE) Specification. The new devices will be part of the Renesas Advanced (RA) Family of 32-bit Arm Cortex-M microcontrollers, joining the RA4W1 Bluetooth 5.
. . . Read More
Date:
10/21/2021
New Series of 3V Multiple I/O Serial NOR Flash Memory Solutions
Alliance Memory announced a new line of 3V multiple input/output serial NOR flash memory products designed to provide supply continuity for Micron Technology customers utilizing discontinued N25Q series devices. Offering support for single, dual, and quad SPI modes, the AS25F series combines fast read performance up
. . . Read More
Date:
10/21/2021
Transceiver Family With Industry's Highest EFT Immunity
Renesas Electronics Corporation introduced the RAA78815x Family of 5V differential RS-485/422 transceivers with industry-leading electrical fast transient (EFT) immunity – ±5000V – and ESD protection up to ±16,000V, making these products the ideal solution for noise-sensitive industrial communication networks. The
. . . Read More
Date:
10/18/2021
Vertical-Mount Inductor in 4025 Case Size Saves Space
Vishay Intertechnology, Inc. introduced a new IHVR vertical-mount inductor in the 10.25 mm by 6.4 mm by 10 mm 4025 case size. Optimizing inductance and minimizing DCR for increased efficiency in DC/DC converters, the newly designed Vishay Dale IHVR-4025JZ-3Z offers high temperature operation up to +15
. . . Read More
Date:
10/13/2021
Microchip Adds Controllers to Capacitive Touchscreen Controller Family
Networked and connected home appliances enable both users and manufacturers to communicate with them via the internet. For example, the user of a kitchen oven might look up a new recipe online or a manufacturer might perform remote diagnostics or over-the-air firmware updates. Displays and touch sensors are es
. . . Read More
Date:
10/12/2021
New GPS Data Helps Scientists Better Understand Ionosphere

The Global Positioning System (GPS) is a constellation of satellites orbiting the Earth approximately 11,000 miles in space. The GPS satellites in this animation are not drawn to scale. However, their orbits and orientation to the Earth are approximately correct. GPS satellites are organized into six different orbital paths completely covering the Earth. Looking at the Earth top down from the North Pole, the six orbits are spaced at 60-degree intervals. Looking at the Earth from the equator, each orbit is moderately tilted at 50 degrees.

A new data source to help scientists better understand the ionosphere and its potential impact on communications and positioning, navigation, and timing—an essential utility for many critical operations—is now available to the public. The data, which was collected by sensors on GPS satellites in 2018, was re
. . . Read More
Date:
10/07/2021
Automotive Gateway Solution Based on R-Car S4 SoCs and PMICs
Renesas Electronics Corporation unveiled an innovative automotive gateway solution with R-Car S4 system on chips (SoCs) and power management ICs (PMICs) for next-generation vehicle computers, communication gateways, domain servers and application servers. Renesas' new solution meets the automotive industry's high
. . . Read More
Date:
10/06/2021
Reliable Power for Global Telecommunications Infrastructure
Building on its proven GP100 rectifier platform, ABB Power Conversion has developed a new lower-voltage, true three-phase, 6-kilowatt (kW) version to provide the power levels needed in telecommunication and networking applications. The low-line rectifiers provide the foundation for a variety of lower-voltage power system
. . . Read More
Date:
10/06/2021
Illinois Tech Professor Joins National Program for STEM Faculty

Georgia Papavasiliou, Professor of Biomedical Engineering in Armour College of Engineering at Illinois Institute of Technology (Illinois Tech)

Georgia Papavasiliou, Professor of Biomedical Engineering in Armour College of Engineering at Illinois Institute of Technology (Illinois Tech), has been named a fellow in the third cohort of the IAspire Leadership Academy, a leadership program aimed at helping STEM faculty from underrepresented backgrounds ascend to
. . . Read More
Date:
10/06/2021
Murata Announces Engineering Fund at Kennesaw State University

Dean Ian Ferguson with Kennesaw State University

Murata announced that it established the Futoshi “Fred” Chanoki Honorary Engineering Fund at Southern Polytechnic College of Engineering and Engineering Technology (SPCEET) at Kennesaw State University (KSU). Named after Murata Electronics North America’s first president, the funding will support the needs of
. . . Read More
Date:
10/05/2021
Would You Like to Have a Little More? The Power Supply in the Industrial Interface Sector

Click image to enlarge

Figure 1: Schematic diagram of a sensor transmission line in an industrial environment

Summary This article shows the challenges an extended IoT system can pose in terms of EMC and thus also functionally. Potential leakage currents, inductively and capacitively coupled interference can disrupt data transmissions from wired sensors. To reduce these influences, decoupled, i.e., galvanically isolated
. . . Read More
Date:
10/04/2021
$18M Grant to Build National Semiconductor Fabrication Facility

Professor Alan Mantooth from the University of Arkansas

Engineering researchers led by Distinguished Professor Alan Mantooth have received $17.87 million from the National Science Foundation to build and operate a national silicon carbide research and fabrication facility at the University of Arkansas. “The national impact of having a fabrication facility such a
. . . Read More
Date:
10/04/2021
High Efficiency, High Density PSM μModule Regulator with Programmable Compensation

Click image to enlarge

Figure 1. 1V and 1.8 V outputs at 25 A with I2C serial control and monitoring interface.

FPGA boards, as well as prototype, testing, and measurement applications demand versatile and high-density power solutions. The LTM4678 is a dual 25 A or single 50 A µModule regulator with digital power system management (PSM) in a small 16 mm × 16 mm footprint. It features: Dual digitally adjustable ana
. . . Read More
Date:
10/01/2021