Technical Features

January 2023

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Figure 1a: Saturation current (Isat) comparison between a hard saturation ferrite power inductor (orange color) and soft saturation powdered alloy power inductor (blue color) at different ambient temperatures displayed by REDEXPERT. Saturation at an ambient temperature of 20ºC

Molded Power Inductors

By: Carlos Farnos, Dr.-Ing. Efrain Bernal / Editor: Gerhard Stelzer, Würth Elektronik eiSos GmbH & Co. KG

Higher power requirements and miniaturization expose passives to rising temperatures, increasing the probability of thermal aging. This article explores how to select molded high-current power inductors, which are exposed to high temperatures for an extended time. The constant market demand to increase power density

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Date:

09/28/2024

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Figure 1: Typical Isat and Irms Ratings

Don’t Overlook These Keys to Optimized Converter Performance

Len Crane, Senior Technologist, Coilcraft

Inductors function as circuit elements by reaction to current flow in the windings. Inductors are fundamentally current-driven devices, and anyone who has designed a dc-dc converter knows power inductor datasheets are covered with Irms and Isat current ratings. Picking a power inductor is all about current ratin

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Date:

01/31/2023

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Figure 1: Gate charge

Ultrahigh power density solutions for energy-efficient high-power lighting and industrial SMPS applications

Stefan Preimel, Principal Product definition Engineer, Infineon Technologies Austria AG

Introduction The evolution of the industrial internet of things (IIoT) that drives the next wave of technological innovation raised the demand for high-quality and reliable industrial switch-mode power supplies (SMPS) systems that are used to power connected devices. These SMPS systems are usually operated in ou

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Date:

01/23/2023

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Figure 1: High-level view of an EV and several opportunities for Silicon Carbide technology

Wolfspeed Enables Higher-Voltage Batteries for EV Systems

Yuequan Hu, Ph.D, Sr. Manager, Automotive Applications, Discrete Power Devices, Wolfspeed

Silicon Carbide (SiC) technology has transformed power management in many markets, especially power delivery systems in electric vehicles (EVs). SiC provides advantages in terms of efficiency, power density, size/weight, thermal management, and reliability. Advantages of Higher Battery Voltage Many areas of an

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Date:

01/04/2023

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Figure 1. Simplified description of the multicell battery monitor

The Amazing Technology Behind EV Batteries

Greg Zimmer, Analog Devices

For decades, the automotive industry has slowly consolidated, while technology and brand differentiation has decreased. The powertrain, the system that transfers energy into motion, is arguably the auto manufacturer’s most prized intellectual property, with more than a century of refinements behind it. In th

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Date:

01/01/2023

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Figure 1: Simplified block diagram of a bidirectional charger

What is Actually Needed to Ensure Efficient Charging of EVs?

Ralf Hickl, Product Sales Manager Automotive Business Unit (ABU) at Rutronik

For BEVs (battery-electric vehicles), low power (kWh/km) is essential. Its calculation often not only includes the power from the battery but also the power required by the AC Wallbox to charge the battery. Charging losses in the onboard charger (OBC) therefore affect this figure directly. To ensure a low pow

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Date:

01/01/2023

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Figure 1. Diagram and equivalent circuit of the 7th generation X-series RC-IGBT technology

Meeting the Demand for Higher Rated, Small-sized and More Reliable Power Modules

David Marrero, Field Application Engineer, Fuji Electric Corp. of America and James Usack, Division General Manager, Fuji Electric Corp. of America

From electric vehicle onboard chargers (OBCs) and fast DC chargers to solar micro-inverters and larger industrial laser, welding, and automation use cases, there is a wide array of applications that rely on modern power conversion. One striking commonality between these applications is the continual push in ch

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Date:

01/01/2023

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Figure 1: Brake pedal force sensors provide many safety and performance advantages for the developers and designers of next generation braking systems

Sensing and Control Solutions Trends in Electric Vehicles

Deirdre Hegarty, Martin Poceiro, and Ayoub Sidhom all at Sensata Technologies

From electric vehicles including passenger cars and commercial vehicle fleets to 2- and 3-wheelers, the electrification trend in transportation is transforming the need for different systems and component technologies to ensure safety while speeding up charging times and vehicle time to market for vehicle OE

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Date:

01/01/2023

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Figure 1: Transmitter and Receiver Arrangement in the AoA Method

Using PoE as the Backbone for IPS and RTLS

Parthiv Pandya, Applications Marketing, Industrial, onsemi

In response to the continued evolution of connectivity, it is now common for new or renovated office buildings and warehouses to support Power over Ethernet (PoE) at an infrastructure level. Just like Ethernet, PoE is being used to connect devices such as surveillance cameras, intelligent lighting and other �

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Date:

01/01/2023

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Figure 1: Schematic describing soil composition

Agriculture Digitization and its Underlying Technology

Juli Ban, Product Manager, Murata

Widely publicized in the media, there are rising concerns both within the agricultural industry and from government policymakers as to whether food production can keep up with unprecedented future demands. The ever-expanding population (especially in developing countries), combined with limited suitable land re

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Date:

01/01/2023

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Figure 1. GaN powers products across the data center, industrial, automotive, consumer electronics, and Hi-Rel

GaN: Solving the Dual Challenge of Sustainability and Profitability in the Data Center

Paul Wiener, VP Strategic Marketing, GaN Systems

Internet traffic has increased by nearly two billion new users in the past five years, creating challenging new demands on the overall Internet and cloud infrastructure. At the same time, cloud operators have significantly ramped technology investments in sustainability, scalability, and profitability. At the ce

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Date:

01/01/2023

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Figure 1: The construction (right) and cross section (left) of an aluminum electrolytic capacitor.

Aluminum Electrolytic Capacitor Performance and Circuit Impacts

Ron Demcko, Senior Fellow, KYOCERA AVX

A growing number of applications, ranging from solar power converters all the way to miniature power supplies for highly complex processing cores, are starting to capitalize on the benefits of aluminum electrolytic capacitors. Aluminum electrolytics are also increasingly used to satisfy miniaturization demands in

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Date:

01/01/2023

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Figure 1. Next generation power sensing technology is essential for tomorrow’s transportation vehicles, related charging infrastructure and industrial motors & equipment

Empowering Advanced Motorized Applications with Optimal Current Sensing

Teoman Ustun, VP Automotive Business Unit, ACEINNA

The growth of power and functionality in the latest electronic systems, especially motorized products, has resulted in increasing demands for more efficiency, precision, reliability, and safety. The need for precise power and motion control in these next-generation products put pressure on the electronic design en

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Date:

01/01/2023