Technical Features

September 2015

Combining GaN and Liquid Cooling for Greater Energy Efficiency in AI Data Centers

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Figure 1: Projected electricity consumption of data centers (2015 – 2030) [6]

Combining GaN and Liquid Cooling for Greater Energy Efficiency in AI Data Centers

By: Paul Wiener, Vice President Strategic Marketing, Julian Styles, Director Application Business Development Both at Infineon Technologies

The data center industry is at a crossroads, facing unprecedented transformation due to the surge in generative AI and other emerging technologies. This surge has massively increased the power consumption on servers, putting a strain on data centers around the world. Data centers already account for about 2 perce

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Date:

04/30/2024

Choosing the correct capacitor

Pierre Lohrber, Wuerth Elektronik

A good insurance plan is not just good to know about, in many aspects of daily life it is indispensable. In the case of Class X and Class Y capacitors, they are required to function reliably in all parts of mains-connected electrical devices, as they offer a form of insurance — we expect them to protect things th

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Date:

09/26/2015

Evolving eGaN FETs for power electronics

Johan Strydom, Efficient Power Conversion

When I started working with eGaN FETs almost six years ago, I had no idea what to expect from this technology. We had our first preliminary datasheet and even though I had no idea what to expect, it was obvious that, on paper, these devices were much better than your typical MOSFETs – already beyond the theoretical si

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Date:

09/26/2015

Selecting primary-side MOSFETs for LLC resonant converters

Wonsuk Choi, Fairchild Semiconductor

Today’s industrial applications demand power supplies capable of delivering ever-higher levels of power density. That trend is escalating as regulatory agencies around the world impose new regulations to achieve higher efficiency, not only at full load, but also in standby mode and across the entire load spectrum. To

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Date:

09/26/2015

System optimization – less is more

Björn Rentemeister and Uwe Jansen, Infineon Technologies

The “Energiewende” (energy transition) has resulted in a shift in thinking not only about the generation of electrical energy, but its distribution and consumption as well. Efficient approaches are needed for energy production and transfer on the one hand, and consumption on the other. What plays a role he

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Date:

09/26/2015

Unlocking the Door to More Compact Designs

Michele Portico, Vincotech

The trend in power electronics is moving towards greater integration and more complex subsystems. On a related note, intelligent power modules (IPMs) have made major inroads into the market for motor control applications. These advanced modules combine high-performance IGBTs, diode power devices with integrated ga

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Date:

09/26/2015

Addressing power dissipation and density issues

Maithil Pachchigar, Analog Devices

Many applications in industrial, instrumentation, optical communication and healthcare industry use multi-channel data acquisition systems that result in increased printed circuit board (PCB) density and thermal power dissipation challenges. The need for increased channel density in these applications is

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Date:

09/26/2015

Balancing lead-acid batteries

Aspiyan Gazder, Linear Technology

Lead-acid batteries are widely used in a broad range of industries and applications. The telecom industry uses a series stack of four lead-acid batteries to provide a 48V stack. Energy storage solutions (ESS) use lead-acid batteries in a variety of series and parallel configurations to store energy generated by

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Date:

09/26/2015

Powering safety gear in demanding apps

Patrick Le Fèvre, Powerbox

Industrial power is a fascinating world, full of amazing projects requiring from designers a large range of competences as well as a tight intimacy with customers and related industries. Powering safety equipment in gas, oil and hazardous substances is a very good example of an area where power designers have to

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Date:

09/24/2015

Tackling power semi device validation

Lee Stauffer, Keithley Instruments, a Tektronix Company

Characterizing the latest generation of wide-bandgap power semiconductor devices fully demands making the various measurements while the device is in its on-state, its off-state, and while it’s transitioning from one state to another. Although capacitance-voltage (C-V) measurements are increasingly important be

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Date:

09/23/2015

Exploring energy monitoring

Christopher Gobok, Linear Technology

Energy is often defined as the amount of power consumed over time, measured in joules (J) or kilowatt-hours (kWh), whereas power is a constant rate of energy usage, measured in watts (W). Thus, while a power rating is typically used to indicate how much electricity a device will consume at a snapshot in ti

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Date:

09/17/2015

Increasing density in power modules

James Lougheed and Alan Elbanhawy, Exar

The power module market has seen explosive growth in the past few years. With growth rates of roughly 30% compounded annually, it’s a trend that many people are watching. Power modules are a new breed of products in the market that are LGA or QFN based, closed frame power supplies that include the controller, dr

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Date:

09/16/2015

NTU and Paradox enhance efficiency at Clean Tech One in Singapore

Julia Arneri Borghese, Paradox Engineering

Since the world population is growing, with more migration to urban areas, contemporary cities are looking increasingly for smart solutions to reduce the consumption of energy and resources while improving livability and boosting economic growth. The path forward to develop truly sustainable cities includes un

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Date:

09/12/2015

Efficient solar energy capture

Bill Schweber, Mouser Electronics

To realize the potential of solar energy as a power source, the front-end interface between the cells and the energy-extraction circuitry must take into account the unique characteristics of these cells; this can be done via different algorithms and a variety of hardware/software implementations. A representa

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Date:

09/09/2015

Test considerations for variable-frequency drives

David Maliniak, Teledyne LeCroy

Motors are everywhere in our world, it seems. Consider our vehicles, for example. When is the last time you had to hand-crank a car window up and down to pay a highway toll? Or, for that matter, when did you last manually adjust the seat position or rear-view mirror angles? Typically, motors drive all of these as

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Date:

09/02/2015

Maximizing energy efficiency in the IoT

Markus Levy of EEMBC and Rob Cosaro of Freescale

The Internet of Things (IoT) represents a class of devices referred to as edge nodes; these require a battery life ranging from weeks to months to decades. An edge node typically contains a microcontroller to perform processing (e.g. encryption, compression, error correction, protocol stack), in addition to a

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Date:

09/02/2015

A look at PSRR and low-performance control loops

Dr. Ray Ridley, President, Ridley Engineering

Modern power converters are moving towards high efficiency, high density, and high switching frequencies. Vendors of power supplies are doing an outstanding job of meeting these goals with a range of new technologies. At the same time, despite the use of advanced control chip technology, many control loops have su

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Date:

09/01/2015

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