Technical Features

Current
CoolSiC™ MOSFET 750 V G1 from Infineon Make Onboard Chargers Smaller, Lighter and More Efficient

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Figure 1: Electric vehicle stock by mode in the Announced Pledges Scenario, 2022-2030 IEA Global EV Outlook 2023

­The International Energy Agency (IEA) predicts that by 2030, 60 percent of the automobile market will consist of electric vehicles (EV), resulting in over 200 million electric powertrains on the road (Figure 1). In addition to this rapid growth, the automotive industry must integrate various other trends, su
Date:
02/29/2024
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 in 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
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