The increase in switching speed offered by GaN transistors requires good measurement technology, as well as good techniques to capture important details of high-speed waveforms. This article focuses on how to leverage the measurement equipment for the user’s requirement and measurement techniques to accurately evaluate high performance GaN transistors. The article also evaluates high bandwidth differential probes for use with non-ground-referenced waveforms.

EDN Network
By Suvankar Biswas , David Reusch & Michael de Rooij
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EPC CEO & Co-Founder, Alex Lidow gives Lee Teschler from EE World Online a tour of the EPC booth at APEC 2018 where EPC demonstrations included a high-power density 48 V – 12 V non-isolated converter capable of delivering over 700 W. In addition, a range of 3-D real-time LiDAR imaging sensors used in autonomous vehicles were displayed. Also, a single desktop implementing a high power resonant wireless charging solution capable of generating 300 W to wirelessly power a wide range of devices including cell phones, notebook computers, monitors, wireless speakers, smart watches, and table lamps.

Wireless power charging was a big point of discussion with a number of different solutions on the APEC 2018 exhibit floor. The following wireless charging solutions had unique aspects in their strategies; let’s take a look at what I saw over the last few days.

EDN Network
By Steve Taranovich
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In this video Alex Lidow, Founder and CEO of EPC, talks to Alix Paultre, Editor-in-Chief of Power Electronics News, about the various demonstrations of GaN-based solutions at the EPC booth at APEC 2018 in San Antonio, Texas. The high-frequency operation and other advanced performance advantages over Silicon enables GaN to empower applications from LIDAR to wireless power transmission. The booth exhibits include examples of these, from a real-time LIDAR demonstration to a running "wireless desk".

LIDAR is made up of a laser (or arrays) capable of transmitting pulsed light over the required range of interest, and a high-speed, low-noise receiver for reflected signal analysis. A portion of this light is reflected or scattered back to the receiver according to the reflectivity of the target.

EDN Network
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Alex Lidow与他的团队队员Michael de Rooij、David Reusch及John Glaser于今天早上的专业研讨会上，与专业工程师（PE）分享实用的议题 -- “发挥氮化镓场效应晶体管及集成电路的最高性能，不仅仅替代MOSFET器件”，使得整个教室被挤得水泄不通。

Planet Analog
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Gamers may not care about the finer points of gallium nitride (eGaN) chips as evangelized by power pioneer Alex Lidow, CEO of Efficient Power Conversion (EPC). But they will care that those chips will enable a new generation of gaming laptops with much smaller power supplies than in the past.

Venture Beat
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Two space travel related stories hit my desktop this week; one that rapidly generated major international headlines and one that slid very quietly onto my email screen.

The headline-hitter was the successful launch of Elon Musk’s SpaceX rocket with its payload of a Tesla sports car, complete with a dummy driver at the wheel. The second was about Gallium Nitride technology that would be suitable for space applications.

Electro Pages
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SL70040SEH Low Side GaN FET Driver Powers ISL7002xSEH GaN FETs in Launch Vehicle and Satellite Power Supplies

TOKYO--(BUSINESS WIRE)--Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today announced the space industry’s first radiation-hardened, low side Gallium Nitride (GaN) field effect transistor (FET) driver and GaN FETs that enable primary and secondary DC/DC converter power supplies in launch vehicles and satellites, as well as downhole drilling and high reliability industrial applications. These devices power ferrite switch drivers, motor control driver circuits, heater control modules, embedded command modules, 100V and 28V power conditioning, and redundancy switching systems.

Business Wire
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Best design practices utilize the advantages offered by eGaN FETs, including printed circuit board (PCB) layout and thermal management. As GaN transistor switching charges continue to decrease, system parasitics must also be reduced to achieve maximum switching speeds and minimize parasitic ringing typical of power converters.

Power Electronics
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Developers are hard at work on the machine learning necessary for safer and more-autonomous vehicles. But all the AI in the world won’t be enough if the car relies on inadequate sensors. That was clearly demonstrated in one fatal Tesla crash that occurred in part because the car’s camera didn’t correctly identify an oncoming truck. To ensure smart vehicles have a reliable model of surrounding objects — particularly the ones the cars identify as “threats” — most rely on one or more lidars, or laser-based remote sensors.

Extreme Tech
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LAS VEGAS — Once again the marathon that is CES is drawing to a close. Four days of trade show plus two days of media events. All sprawled across five miles of Las Vegas in some insane number of hotels and conference venues. As usual, I stuck it out so you don’t have to. Here are some of the images that struck me as interesting, weird, or just plain worth remembering:

Extreme Tech
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Wireless power, the ability to deliver electricity to gadgets without plugging those gadgets into a cable, is a hotbed of innovation at the moment. The dominant standard, called “Qi,” is ever under attack from other efforts.

This week saw interesting developments from Energous (WATT), which aims to transfer power via radio frequency transceivers, with limited results so far, and some controversy about its business.

There are other contenders. On Wednesday in Las Vegas, during the Consumer Electronics Show, I met with Alex Lidow, who is founder of a privately held chip company EPC of El Segundo, California.

Barron's
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This article takes a deep dive into lidar technology. It explains how the technology works and the challenges technologists face as they try to build lidar sensors that meet the demanding requirements for commercial self-driving cars.

The bottom line is that while bringing lidar costs down will take a significant amount of difficult engineering work, there don't seem to be any fundamental barriers to bringing the cost of high-quality lidar down below $1,000—and eventually below $100. That means the technology—and ultimately, self-driving vehicles that depend on lidar—should be well within reach for ordinary consumers.

Ars Techinca
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如果要无线充电得以普及， 无线充电系统必需从小型充电垫发展成为大面积无线电源。这就需要磁共振系统的线圈、系统架构及功率放大器各方面的基本改变。基于氮化镓器件的放大器已经被证明为可以在广阔的负载范围内发送60 W功率至发射线圈并实现超过90% 的效率。

作者：张远哲及Michael A. de Rooij
Power Electronics Europe杂志
2017年11月/ 12月刊
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Alex Lidow, CEO of Efficient Power Conversion, talks to Leo Laporte about Gallium Nitride, and how it is being used to create the next generation of microchips and wirelessly power the world.

This Week in Technology
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宜普电源转换公司首席执行官兼共同创办人Alex Lidow展示大面积无线充电技术如何传送电源。

Digital Journal
2017年9月18日
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NextbigFuture访问了EPC公司的首席执行官Alex Lidow。 EPC公司是制造氮化镓晶体管的领导厂商，目前带领业界开启无线充电新时代。在5至10年内，我们将有可能看到全屋或写字楼从采用昂贵的电源线改为在广泛地方采用无线充电解决方案供电。

NextBigFuture
2017年9月9日
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The year is 2022. You sit down at your office desk, back from Ikea with your new lamp. You take it out of the box, place it on the table, and it illuminates the workspace immediately. You then take your MacBook out of your backpack, place it to the right of the lamp, and it starts charging instantly. It sounds unreasonable to think that all this could become reality in just a few years. But behind closed doors, this technology already exists.

“A couple of months ago, we demonstrated an entire table top where everything on it was powered wirelessly,” Alex Lidow, CEO of EPC, tells Inverse. “A lamp, computer monitor, computer, cell phones being charged… all sorts of stuff.”

Inverse Innovation
August, 2017
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Since Nikola Tesla first experimented with wireless power during the early 1900s, there has been a quest to “cut the cord” – and go wireless. Today’s applications for wireless power undoubtedly extend far beyond Tesla’s wildest imagination, as we now have the ability to wirelessly charge cell phones, power tools, and even buses while at their scheduled stops, not to mention airborne drones while flying. However, despite strong consumer and business demand for wireless charging, power cords still reign. What explains the lag in our ability to power all of our electronic devices and appliances wirelessly?

ITProPortal
August 2, 2017
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