Gallium nitride is helping the transition from internal combustion engines to electric and smart cars.

Power Systems Design
July/August 2020 Issue
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Gallium nitride (GaN) power devices have been in volume production since March 2010 and have established a remarkable field-reliability record. An automotive application using GaN power devices in high volume is lidar (light detection and ranging) for autonomous vehicles. Lidar technology provides information about a vehicle’s surroundings, thus requiring high accuracy and reliability to ensure safety and performance. This article will discuss a novel testing mechanism developed by Efficient Power Conversion (EPC) to test eGaN devices beyond the qualification requirements of the Automotive Electronics Council (AEC) for the specific use case of lidar.

eeNews Europe
July 30, 2020
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Starting on page 13 of this story, EPC discusses with David Morrison the latest GaN developments meant for APEC. Alex Lidow, CEO and co-founder of EPC, discussed his company’s new power stage ICs, their development of GaN-based reference designs using a multi-level topology and various demos that were originally bound for APEC.

How2Power Today
April, 2020
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Three years ago, the cost of making medium voltage eGaN FETs fell below the cost of equivalently rated power MOSFETs. At that time EPC decided to use the performance and cost advantages of eGaN FETs to aggressively pursue applications with input, or output, voltage around 48 V. Specifically, automotive and computer applications is where 48 V conversion is becoming the new architecture, the new standard for power systems.

Power Systems Design
March 31, 2020
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Alex Lidow is the CEO of Efficient Power Conversion, probably the most prominent advocate for gallium nitride, delivering the first GaN transistor in 2009. After a decade of selling products, DESIGN&ELEKTRONIK editor Ralf Higgelke met him to discuss some of the latest advances in that area.

DESIGN&ELEKTRONIK
February 20, 2020
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With silicon near its theoretical limits new designs heavily favor the continued adoption of GaN devices. GaN devices are early in their evolution, with advances in performance and integration and more products coming.

Electronics Weekly
December, 2019
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Smaller, faster, lower cost, and more integrated, GaN-on-Silicon devices have the confidence of designers across a spectrum of power conversion applications. In this article, Alex Lidow explains why it’s getting harder to avoid using GaN power transistors and ICs.

Electronic Specifier
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It’s getting harder to avoid using GaN power transistors and ICs, says Alex Lidow. There are many reasons to use GaN-on-Si power transistors such as eGaN FETs, in telecoms, vehicles, healthcare and computing. Smaller, faster, lower cost, and more integrated, GaN-on-Si devices have spent a decade gaining the confidence and trust of designers across the spectrum of power conversion applications.

Electronic Specifier
November 20, 2019
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Ahead of December’s Power Conference in Munich, Bodo Arlt took the opportunity to get an insight into Alex Lidow’s thoughts on where the GaN market is now and where he sees the potential applications for the future. Dr. Lidow is the CEO and Co-founder of Efficient Power Conversion (EPC).

Bodo’s Power Systems
November, 2019
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GaN and SiC are becoming much more attractive as prices drop. Several vendors are rolling out the next wave of power semiconductors based on gallium nitride (GaN) and silicon carbide (SiC), setting the stage for a showdown against traditional silicon-based devices in the market.

Semiconductor Engineering
October, 2019
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GaN transistors, with favorable figures of merit (FOM) for 48 V applications, can provide a reduction in size, weight, and bill of material costs. This article presents a five-phase, fully regulated, bidirectional 48 V to 12 V DC-DC converter. An advancedthermalmanagement solution suitable for use with eGaN FETs results in a system that can provide 3kW of power at an efficiency exceeding 97.5% into a 14.5 V battery.

Power Systems Design
July, 2019
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Today’s GaN FETs are improving rapidly in size and performance. The benchmark devices are still 300 times away from their theoretical performance limits. The early GaN adopters needed the speed. Big examples were lidar systems for autonomous cars, drones, and robots, and 4G/LTE base stations. The volume has grown, and now GaN power devices are at a point where the prices are equivalent to the slower, bigger and aging power MOSFET. Thus, it is time for GaN’s frontal assault!

Bodo’s Power Systems
June 2019
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Efficient Power Conversion (EPC) has recently introduced two new, 100V, GaN devices that are able to handle 48V server and automotive needs. I will be examining the 48V server power solutions to the processor as well as in automotive and energy storage systems (See my article Bi-directional DC/DC power supplies: Which way do we go?) bi-directional supplies, in an EDN exclusive article coming up in the near future. GaN power transistors MUST be a part of these kinds of architectures; from my point-of-view there is no better alternative.

Planet Analog
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With the power architecture transition from a 12 V to a 48 V bus power distribution in modern data centers, there is an increased demand to improve 48 V power conversion efficiency and power density. In this context, DC-DC converters designed using eGaN^® FETs and ICs provide a high efficiency and high power density solution. Additionally, with the advent of 48 V power systems in mild-hybrid, hybrid and plug-in hybrid electric vehicles, GaN transistors can provide a reduction in size, weight, and Bill of Materials (BOM) cost.

Power Systems Design
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With the rise of autonomous cars and electric propulsion as driving forces in automotive applications, a huge new market for power devices based on gallium nitride grown on a silicon substrate (GaN-on-Si) is emerging.

Design World
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Gallium nitride(GaN)-on-silicon low voltage power devices have enabled many new applications since commercial availability began in 2010. New markets, such as light detection and ranging (LiDAR), envelope tracking, and wireless power, emerged due to the superior switching speed of GaN. These new applications have helped develop a strong supply chain, low production costs, and an enviable reliability record. All of this provides adequate incentive for the more conservative design engineers in applications, such as dc–dc converters, ac–dc converters, and automotive to start their evaluation process. In this series, a few of the many, high volume applications taking advantage of GaN to achieve new levels of end-product differentiation will be discussed. First, it is useful to explore the factors attributing to the rapid acceleration of the adoption rate.

Power Systems Design
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The reason eGaN FETs (and now ICs) are used in all the LiDAR systems for autonomous cars, and now autonomous race cars, is that they enable much higher resolution (due to extremely short laser pulses), faster image speed (due to short laser pulses), and the ability to see greater distances with high accuracy (due to fast laser pulses at very high current).

Planet Analog
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Velodyne LiDAR Inc., the recognized global leader in Light, Detection and Ranging (LiDAR) technology, today announced a groundbreaking design for a solid-state LiDAR sensor that can deliver a subsystem cost of under $50 U.S. when sold in high-volume manufacturing scale.

Venture Beat
December, 13, 2016
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Lidar is a fantastic sensor for autonomous cars. Most companies developing self-driving vehicles seem to agree that the massive amount of long range, high accuracy data that you get from lidar is necessary, especially for complicated and variable urban environments. Really, the only reason why there's been so much focus on getting autonomy to work with just cameras and radar is that cameras and radar are cheap, and lidar is ridiculously expensive.

IEEE Spectrum
December, 13, 2016
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Carmakers and tech firms competing to develop automated vehicles seek a combination of sensors and cameras that provide maximum perception and visibility of surroundings at a cost that’s manageable for mass production.

Forbes
December, 13, 2016
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