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An Artificial Invasion

Jason Lomberg, North American Editor, PSD

­The world is buzzing over the capabilities, potential, and in some cases, legal implications, of artificial intelligence, and for good reason. In a very real sense, this feels like the hype that preceded the very first personal computers, before they became an inseparable part of the human experience. Like late ‘80s/early
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Date:
03/01/2024
Getting Power Supplies Right

Ally Winning, European Editor, PSD

­Welcome to the March edition of Power Systems Design Europe. The longer days and brighter weather always gives me a lift at this time of year after what has been a long winter. It is looking like an exciting year for the industry and there will be lots of innovative new products coming to market if the quality o
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Date:
03/01/2024
ACF in a GaN World

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Figure 1. Traditional QR flyback converter with protective RCD clamp

­Flyback topologies are often chosen for AC/DC conversion in low- to medium-power applications such as USB adapters and battery chargers. Among their inherent strengths, the transformer-based design provides galvanic isolation and facilitates a wide input voltage range. Moreover, the simplicity of the topology and
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Date:
03/01/2024
Using an Automotive-Grade, Class-D Audio Amplifier to Improve a Vehicle's E-Call System

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Figure 1: E-Call System

­A recent study found that there was a causal relationship between how quickly someone is able to receive medical care and their chances of survival. To further lower mortality rates, intelligent transportation has led to the invention of the emergency call, also called an e-call, function. E-call systems
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Date:
03/01/2024
Advanced Simulation Optimizes Embedded Motor Design

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Figure 1: Principle of BLDC- and PMSM-motor with a B6 Bridge

­In the past, the number of automotive applications driven by electrical motors increased from year to year. In the beginning, there were only a few applications such as brushed DC-motors, fuel pumps, windshield wipers, ABS, or window lifters, that were simply controlled by switches or relays. For these electrically dr
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Date:
03/01/2024
Maximizing Yield and Performance of Power Devices by Deep Learning

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Figure 1. Visualization of a FIB-SEM tomography datasets obtained from a SiC MOSFET samples. The top image shows the full volume, while the bottom one presents the same dataset with a cuboid of approximately one third of the volume cut away....

­Silicon carbide (SiC) MOSFETs have become predominantly used power semiconductors, particularly for automotive applications. To support process development, improve manufacturing yield, and reduce sub-surface failures in finished products, engineers must understand the structure, dopant and junction profiles, an
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Date:
03/01/2024
Optimising Distributed Power Architectures with Programmable PoL Converter Current Limits

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Figure 1: A typical distributed power architecture using an intermediate bus and point of load converters, here the load is a Xilinx SoC device

­Even while accounting for DC power distribution, the disparity between input and output voltages gets larger, with supply rails often subject to wide variations, while the outputs, sometimes down to around 1V, must be ever-more accurate and disturbance-free. Power conversion in a single stage with isolation
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Date:
03/01/2024
SiC Solutions Extend the Range of High-Power Applications

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Figure 1: Microchip’s SiC portfolio

­The demand for power devices is constantly increasing, driven by the impulse coming from sectors with major innovation such as e-mobility, renewable energy, and data centers. Power applications today have continuously more stringent requirements, linked above all to achieving higher efficiency (with consequent re
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Date:
03/01/2024
Analysis of SMPS and Rectification: Inductor Violations

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Figure 1. Simplified buck converter power stage

­Every SMPS works by storing energy in an inductor and utilizing pulse width modulation (PWM) techniques to obtain the desired output. The guiding principle of these converters is the volt second balance law, which dictates that when operating in a steady state, over one period the average current of an inductor mu
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Date:
03/01/2024
Design Considerations for Medical Power Supplies

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Figure 1: A typical risk management process according to ISO 14971

­Medical equipment design is highly regulated, with safety being the main concern. However, the standards must cover a very wide range of equipment types and use environments, from battery-powered monitors to scanners consuming multiple kW and from operating theatres to analysis labs and ‘point of care’ se
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Date:
03/01/2024
Power Supplies – Still Better to Buy

Kevin Parmenter, Director, Applications Engineering. TSC, America

­The merchant power supply market, valued at USD 35.78 billion in 2022, is projected to reach USD 50.22 Billion by 2030 – a CAGR of 5.13 percent. The merchant power supply market refers to the industry that produces devices and systems responsible for providing electrical power to electronic devices and sys
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Date:
03/01/2024
AI Faces a Barrage of Legal Challenges

Jason Lomberg, North American Editor, PSD

­Some non-consensual images of Taylor Swift and a 1-hour comedy special from the very deceased George Carlin is bringing the dark side of artificial intelligence to the public consciousness. And this isn’t late 20th century roboapocalypse agita – for the moment, the biggest AI threat is a plethora of copyr
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Date:
03/01/2024
New EVs Can Be Filled Like an ICE Vehicle

Ally Winning, European Editor, PSD

­One of the biggest drawbacks of EVs is the time they take to charge. That problem increases as temperatures begin to drop. Most of us likely saw the photo of the group of Teslas abandoned at a charging station at the beginning of this year because their batteries wouldn’t hold charge. It is not a sight that
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Date:
03/01/2024
Switching Regulator Noise Reduction with an LC Filter

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Figure 1. Buck regulator to power noise sensitive loads with an LC filter on the output

Different filtering techniques can be used to reduce the noise of a switching regulator. One that works especially well is an LC filter with an inductor in series with the power flow and a capacitor from the filtered voltage to ground. This type of LC filter creates a double pole in the frequency domain. Dependi
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Date:
03/01/2024
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