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Gate Drive Measurement Considerations

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/whitepaper/gate-drive-measurement-considerations

One of the primary purposes of a gate driver is to enable power switches to turn on and off faster, improving rise and fall times. Faster switching enables higher efficiency and higher power density, reducing losses in the power stage associated with high slew rates. However, as slew rates increase, so do measurement and characterization uncertainty. 

Effective measurement and characterization considerations must account for: ► Proper gate driver design – Accurate timing (propagation delay in regard to skew, PWD, jitter) – Controllable gate rise and fall times  – Robustness against noise sources (input glitches and CMTI) ► Minimized noise coupling ► Minimized parasitic inductance

The trend for silicon based power designs over wide bandgap power designs makes measurement and characterization a greater challenge. High slew rates in SiC and GaN devices present  designers with hazards such as large overshoots and ringing, and potentially large  unwanted voltage transients that can cause spurious switching of the MOSFETs.

Your Guide to Sprinting Across the 5G Finish Line First.

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/whitepaper/your-guide-to-sprinting-across-the-5g-finish-line-first

5G introduces test challenges related to massive MIMO, mmWave frequencies, and over-the-air (OTA) test. Successfully overcoming these challenges is the only way to reach 5G commercialization before the competition.

In Keysight’s latest eBook, Making 5G Work, you will learn:

  • 5 strategies to accelerate 5G designs
  • 4 insights to ace conformance testing
  • 3 ways to speed up carrier acceptance test for your device
  • 4 techniques that reduce 5G manufacturing test times and costs
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How to Improve Security Visibility and Detection-Response Operations in AWS

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/webinar/how-to-improve-security-visibility-and-detectionresponse-operations-in-aws

Security teams often handle a large stream of alerts, creating noise and impairing their ability to determine which incidents to prioritize. By aggregating security information from various sources and automating incident response, organizations can increase visibility into their environment and focus on the most important potential threats. In this webinar, SANS and AWS Marketplace explore how organizations can leverage solutions to create more signal and less noise for actionable responses, enhancing and accelerating security operations.

Register today to be among the first to receive the associated whitepaper written by SANS Analyst and Senior Instructor Dave Shackleford.

Attendees will learn to:

  • Use continuous monitoring to gain insight into events and behaviors that move into and through your cloud environment
  • Integrate security incident and event management (SIEM) solutions to enhance detection and investigation of potential threats
  • Leverage security orchestration automation and response (SOAR) technologies to auto-remediate events and reduce noise in your environment

Test of Complex Autonomous Vehicle Designs

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/whitepaper/test-of-complex-autonomous-vehicle-designs

Autonomous vehicles (AV) combine multiple sensors, computers and communication technology to make driving safer and improve the driver’s experience. Learn about design and test of complex sensor and communication technologies being built into AVs from our white paper and posters.

Key points covered in our AV resources:

  • Comparison of dedicated short-range communications and C-V2X technologies
  • Definition of AV Levels 0 to 5
  • Snapshot of radar technology from 24 to 77 GHz
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Ampacity Calculations of High-Voltage Cables Using Multiphysics Simulation

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/webinar/ampacity-calculations-of-highvoltage-cables-using-multiphysics-simulation

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Get an introduction to modeling thermal performance of high-voltage cables in COMSOL Multiphysics® in this webinar. High-voltage power cables are major assets and are expected to work reliably for many years. One of the factors affecting reliability is thermal performance of the cables. This has to be determined at the early stage of the design and is achieved by calculations of the thermal rating (often called ampacity).

Ampacity calculations usually involve two different physics: heat transfer (in solids and gases/liquids) and electromagnetics (Joule losses in the conductor, dielectric losses, and electromagnetic induction). Some models of cable installations are relatively easy to solve, while others require in-depth knowledge of the physics and experience in building FEM models. For example, the heat transfer from directly buried cables involves only conduction, while for cables installed in air, radiation and convection must be taken into consideration.

This webinar will demonstrate how to build finite element models of underground cables using COMSOL Multiphysics®. The presentation concludes with a Q&A session.

Understanding the Effect of Glass Transition Temperature on Epoxies

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/whitepaper/understanding-the-effects-of-temperature-on-epoxies-and-glass-transition

Learn about glass transition temperature (Tg) and why it is an important factor for consideration in high temperature bonding, sealing, coating and encapsulation applications. In this white paper, we explore how Tg is measured and how thermal stability affects the performance of epoxy compounds. Download now to learn more.

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Top Tech 2020

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/static/top-tech-2020

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The Return of the Lithium-Metal Battery

XNRGI nears commercialization of its porous silicon lithium-metal battery


Boeing’s Autonomous Fighter Jet Will Fly Over the Australian Outback

Robotic aircraft will accompany human-piloted planes, adding firepower and thwarting enemy attacks


Your Next Salad Will Be Grown by a Robot

California startup FarmWise says robotics and machine learning will make crops tastier and healthier


Bon Voyage for the Autonomous Ship Mayflower

The team behind the unmanned, solar- and wind-powered Mayflower races to launch it in time for the 400th anniversary of its namesake’s journey


Facebook AI Launches Its Deepfake Detection Challenge

At the NeurIPS conference, Facebook asks researchers to build tools to spot deepfake videos


4 Missions Will Search the Martian Atmosphere and Soil for Signs of Life

ExoMars 2020, Mars 2020, HX-1, and Hope will look for biology’s signature


U.S. Consumers Might Get Their First Taste of Transgenic Fish This Year

AquaBounty’s salmon is the world’s first bioengineered animal approved for human consumption


No Job Is Too Small for Compact Geostationary Satellites

Astranis and GapSat will launch GEO smallsats in 2020 to fill gaps in satellite coverage


Caltech’s Brain-Controlled Exoskeleton Will Help Paraplegics Walk

The exoskeleton’s neural connections will enable people with spinal cord injuries to balance and walk without crutches


10 Tantalizing Tech Milestones to Look for in 2020

Bionic limbs, electric planes,  nuclear fusion, and more


Will China Attain Exascale Supercomputing in 2020?

The U.S., China, Japan, and the EU are all striving to hit the next big milestone in supercomputing, but only China has claimed it will do so this year


Panasonic’s Cloud Analytics Will Give Cars a Guardian Angel

Ice 200 meters ahead: The Cirrus system will give drivers individualized warnings

Improving Codec Execution With ARM Cortex-M Processors

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/whitepaper/improving-codec-execution-with-arm-cortexm-processors

Digital Signal Processing (DSP) has traditionally required the use of an expensive dedicated DSP processor. While solutions have been implemented in microcontrollers using fixed-point math libraries for decades, this does require software libraries that can use more processing cycles than a processor capable of executing DSP instructions.

In this paper, we will explore how we can speed up DSP codecs using the DSP extensions built-in to the Arm Cortex-M processors.

You will learn:

  • The technology trends moving data processing to the edge of the network to enable more compute performance
  • What are the DSP extensions on the Arm Cortex-M processors and the benefits they bring, including cost savings and decreased system-level complexity
  • How to convert analog circuits to software using modeling software such as MathWorks MATLAB or Advanced Solutions Nederlands (ASN) filter designer
  • How to utilize the floating-point unit (FPU) with Cortex-M to improve performance
  • How to use the open-source CMSIS-DSP software library to create IIR and FIR filters in addition to calculating a Fast Fourier Transform (FFT)
  • How to implement the IIR filter that utilizes CMSIS-DSP using the Advanced Solutions Nederlands (ASN) designer

Monitoring Your Network with Time Series

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/webinar/monitoring-your-network-with-time-series

Networks play a fundamental role in the adoption and growth of Internet applications. Penetrating enterprises, homes, factories, and even cities, networks sustain modern society. In this webinar, Daniella Pontes of InfluxData will explore the flexibility and potential use cases of open source and time series databases.

In this webinar you will:

-Learn how to use a time series database platform to monitor your network

-Understand the value of using open source tools

-Gain insight into what key aspects of network monitoring you should focus on

Tips and Tricks on how to verify control loop stability

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/whitepaper/tips-and-tricks-on-how-to-verify-control-loop-stability

The Application Note explains the main measurement concept and will guide the user during the measurements and mention the main topics in a practical manner. Wherever possible, a hint is given where the user should pay attention.

Register for our Application Note "Tips and Tricks on how to verify control loop stability"

How to Leverage a CASB for Your AWS Environment

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/webinar/how-to-leverage-a-casb-for-your-aws-environment

With the rapid rate of enterprises moving toward cloud providers, security organizations are seeking out methods to implement security controls. Attendees of this webinar will discover how to take advantage of the convenience of cloud access security brokers (CASBs) to integrate modern technologies and secure their AWS footprint with a suite of capabilities.

Attendees will learn to:

  • How a CASB can help make sense of auditing data
  • How a CASB can provide data protection and storage security
  • What common features of CASBs can be leveraged to secure AWS deployments

5G Small-Cell Base Station Antenna Array Design

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/webinar/5g-smallcell-base-station-antenna-array-design

In this eSeminar we will explore state-of-the-art simulation approaches for antenna array design, with a particular focus on 5G small-cell base station antennas.

Realizing the 5G promise of reliably providing high data rate connections to many users simultaneously requires the use of new design approaches for base station antennas. In particular, antenna arrays will increasingly be used to enable agile beam forming and massive MIMO technology, both required to provide good service in dynamic, complex urban environments with a high number of users. The array design capabilities of SIMULIA CST Studio Suite have grown dramatically over the last years and are relied on by many companies around the world.

Join us to learn more about how simulation can help you with your array design, as we answer the following questions.

  • How can antenna elements be designed and evaluated in terms of their suitability as an array element?
  • How can full arrays with real radomes be simulated accurately much more quickly than before using the new simulation-by-zones approach?
  • How can interference between multiple co-located arrays be evaluated using advanced hybrid simulation techniques?
  • Finally, how can the coverage performance of base station arrays in complex urban or indoor environments be predicted?

Simulating Radar Signals for Meaningful Radar Warning Receiver Tests

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/webinar/simulating-radar-signals-for-meaningful-radar-warning-receiver-tests

Testing state-of-the-art radar warning equipment with adequate RF and microwave signals is a challenging task for radar engineers. Generating test signals in a lab that are similar to a real-life RF environment is considered a supreme discipline when evaluating advanced radars. A scenario for testing radar-warning receivers (RWR) can easily contain many highly mobile emitters that are capable of mode changes, many interfering signals, and a moving multi-channel receiver. Today, there are intuitive and easy-to-use software tools available that take a lot of work off the hands of radar engineers.

In this seminar, you will learn how to:

  • Create radar scenarios ranging from simple pulses to the most demanding emitter scenarios using PC software
  • Generate complex radar signals with off-the-shelf vector signal generators
  • Increase flexibility during radar simulation by streaming pulse descriptor words (PDW)

3D Electromagnetic Simulation of Antennas Installed on an Aircraft

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/webinar/3d-electromagnetic-simulation-of-antennas-installed-on-an-aircraft

Learn about the importance of using a range of methods in the 3D electromagnetic (EM) simulation of installed antenna performance.

3D EM fullwave simulation is a common practice for antenna designers and Analyst. The variety in antenna topologies and design specifications necessitate a range of simulation algorithms to ensure an efficient or even feasible solution is available.

This range of technology becomes even more important as antennas’ operation in the installed environment is considered. The application of different EM methods as well as hybridization is discussed via an example workflow of antennas installed on an aircraft. Techniques for specific installed antenna scenarios including radome analysis, co-site interference and initial field of view analysis are presented using the SIMULIA CST Studio Suite toolset.

How to Build a Threat Hunting Capability in AWS

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/webinar/how-to-build-a-threat-hunting-capability-in-aws

Threat hunting offers proactive ways to detect anomalous behavior in your environment. Do you know how to build an effective threat hunting program in your AWS environment? In this webinar, you will learn how threat hunting differs from alerts and SOC monitoring, and what threats to look for. You will also discover real-life examples that demonstrate how threat hunters can apply cloud infrastructure best practices to reduce the noise in often chaotic environments, making it easier to detect potential events. Leveraging detailed use cases, this webinar can help you develop an effective threat hunting program.

Register for this webcast to be among the first to receive the associated whitepaper written by security expert Shaun McCullough.

Attendees will learn to:

  • Use the Threat Hunting Loop to identify what to look for, which tools you need to analyze available data, and ways to tease out patterns that indicate potential events
  • Strike the right balance of how much data to capture, identify gaps in information, and determine how best to collect that information
  • Analyze logs efficiently and effectively using Amazon CloudWatch, AWS CloudTrail, and Amazon GuardDuty
  • Automate the process of evaluating and enriching complex data sets by utilizing SIEM and SOAR solutions to detect possible threats

Get Keysight’s Basic Instruments Flyer Featuring PathWave BenchVue Software

Post Syndicated from IEEE Spectrum Recent Content full text original https://spectrum.ieee.org/whitepaper/get-keysights-basic-instruments-flyer-featuring-pathwave-benchvue-software

As the complexity of today’s bench setups increase, so does the difficulty of collecting and correlating data from multiple pieces of test equipment. This latest Basic Instruments flyer showcases Keysight’s PathWave BenchVue software. See how to quickly move through your test development phase and get more from your instruments!

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