EPC技术文章

GaN Powers Small Satellites

Small satellites bring a more cost-effective approach to low-Earth-orbit (LEO) missions, helping to deliver low-cost internet access across the globe. For this application, GaN FETs partnered with a radiation tolerant pulse width modulation controller and GaN fet driver allow more efficient switching, higher frequency operation, reduced gate drive voltage and smaller solution sizes compared to the traditional silicon counterparts.

Electronics Weekly
July, 2019
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氮化镓正面攻击硅功率MOSFET器件

目前的氮化镓场效应晶体管在尺寸及性能方面以飞快的速度发展,而目前为业界树立基准的氮化镓器件的性能还可以提升多300倍。

最早采用氮化镓器件的应用是利用氮化镓的超快速开关速度,例如面向全自动驾驶汽车和无人机的激光雷达系统、机械人,以及4G/LTE基站。氮化镓器件的产量一直在增加,而其价格跟开关速度更慢、尺寸更大型和日益陈旧的MOSFET器件相约。因此,目前正是氮化镓器件正面攻击MOSET的时候!。

Bodo’s Power System
2019年6月
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Thermal design for a high density GaN-based power stage

eGaN FETs and ICs enable very high-density power converter design, owing to their compact size, ultra-fast switching, and low on-resistance. The limiting factor for output power in most high-density converters is junction temperature, which prompts the need for more effective thermal design. The chip-scale packaging of eGaN FETs and ICs offer six-sided cooling, with effective heat extraction from the bottom, top, and sides of the die. This article presents a high-performance thermal solution to extend the output current capability of eGaN-based converters.

EDN
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The Amazing New World of Gallium Nitride

From the heart of Silicon Valley comes a new buzzword. Gallium nitride is the future of power technology. Tech blogs are touting gallium nitride as the silicon of the future, and you are savvy enough to get in on the ground floor. Knowing how important gallium nitride is makes you a smarter, better consumer. You are at the forefront of your peer group because you know of an up and coming technology, and this one goes by the name of gallium nitride.

HACKADAY
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EPC: Ahead of the Pack

EPC's chief executive, Alex Lidow, believes his GaN devices now beat silicon on performance and price, reports Rebecca Pool.

For EPC chief executive, Alex Lidow, this year's PCIM Europe 2019 has been all about applications. Presenting myriad enhanced-mode GaN FETs and ICs in end-products, the company is making a big play for 48 V DC-DC power conversion in advanced computing and automotives.

Compound Semiconductor
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PCIM Europe – where power is at the core of innovation

This year’s PCIM Europe was attended by a record number of visitors, over 12,000. Over half (54%) were from outside Germany. They came to see over 500 exhibitors and while the subject matter was diverse and wide-ranging, there were some themes that emerged. GaN and SiC jostled for attention at this year’s PCIM Europe. Showing the potential that GaN has already realised, Efficient Power Conversion (EPC) had a stand that was well-stocked with examples of the eGaN FET technology that the company introduced in 2009.

Electronic Specifier
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氮化镓技术可以提升面向服务器及汽车应用的48 V DC/DC 功率转换的效率

宜普电源转换公司(EPC)推出两个全新100 V氮化镓器件,可以支持服务器及汽车应用的48 V转换的要求。 我将在处理器、车用及能量存储系统等方面探讨48 V服务器的功率转换解决方案(可参考我的文章 “双向DC/DC电源供电: 我们应该如何取向?”),未来将在EDN文章中看到。氮化镓功率晶体管必需是这些不同架构的一部分 -- 我相信没有其它更优越的元件可以替代氮化镓器件了 。

Planet Analog
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APEC 2019视频

宜普电源转换公司的基于氮化镓的器件乃前沿技术。在本视频,宜普公司的首席执行官Alex Lidow于APEC展会现场与 Alix Paultre分享多个design in项目,从而展示基于氮化镓的器件的各种优势。

PSDtv - EPC on Why Silicon is Dead at APEC 2019

In this episode of PSDtv Alex Lidow, Chief Executive Officer and Co-Founder of Efficient Power Conversion (EPC) is at APEC 2019 in Anaheim and discusses why their GaN on Silicon devices make Silicon now dead.

PSDtv
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Powering graphics processors from a 48-V bus

New converter topologies and power transistors promise to reduce the size and boost the efficiency of supplies that will run next-generation Artificial Intelligence (AI) platforms. In all the topologies with 48 VIN, the highest efficiency comes with using GaN devices. This is due to their lower capacitance and smaller size. With recent pricing declines in GaN power transistors, the cost comparison with silicon-based converters now strongly favors GaN in all the leading-edge solutions.

Power Electronic Tips
March, 2019
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The Power and Evolution of GaN, Part 6: GaN Technology Adoption and Roadmap

In the final installment of this series, how GaN has met the requirements to displace silicon is explored. As the adoption rate of GaN explodes, it is important to remember that, while GaN has made many advancements in just a few short years, it is still far from its theoretical performance limitations and thus there are profound improvements that can continue to be achieved. In time, the performance and cost advantages of GaN-on-silicon will result in a majority of applications currently using silicon-based devices converting to the smaller, faster, cheaper, and more reliable GaN technology.

Power Systems Design
February, 2019
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为什么采用氮化镓器件?

氮化镓技术已经成熟至可以挑战传统的硅技术。从2010年起,商用的低压硅基氮化镓功率器件实现了很多全新应用。具备高速开关性能的氮化镓器件也推动了全新市场的出现,例如激光雷达、包络跟踪及无线电源市场。这些全新应用有助供应链的开发、实现低制造成本及良好的器件可靠性记录。这一切对于比较保守的DC/DC转换器、AC/DC转换器及车载应用的设计工程师来说,是很好的理据,是时候开始对氮化镓器件进行评了。本文探讨加快采纳氮化镓器件的各项因素。

Electronics Weekly
2019年1月
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Gallium nitride is the silicon of the future

Last week, Anker debuted a tiny new power brick, crediting its small size with the component it uses instead of silicon: gallium nitride (GaN). It’s the latest example of the growing popularity of this transparent, glass-like material that could one day unseat silicon and cut energy use worldwide.

The Verge
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Building the Smallest and Most Efficient 48 V to 5 - 12 V DC to DC using eGaN FETs and ICs

The Power and Evolution of GaN – Part 2 of 6 part series

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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面向48 V转到1-2 V/10 A的应用,采用基于氮化镓器件的 VRM混合式转换器可实现 95%效率

在48 V总线架构出现后,我们可采用全新、基于氮化镓(GaN)晶体管的混合式转换器,以实现超过95%峰值效率及225 W/in3 功率密度。对于节能的数据中心来说,轻负载效率非常重要。基于氮化镓晶体管的转换器在转换至20%负载时,可保持高于90%的效率。

PowerPulse
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The Growing Ecosystem for eGaN FET Power Conversion

In recent years, GaN-based power conversion has increased in popularity due to the inherent benefits of eGaN FETs over conventional Si transistors. Migrating a converter design from Si to GaN offers many system-level improvements, which require consideration of all the components in that system. This trend has subsequently spurred a growth in the ecosystem of power electronics that support GaN-based designs.

Power Systems Designs
By Edward A. Jones, Michael de Rooij, and David Reusch
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eGaN FET-Based Synchronous Rectification

As GaN-on-Si becomes more common in DC-DC converter designs, questions often arise from experienced designers about the impact of the unique characteristics of GaN transistors when used as synchronous rectifiers (SRs). In particular, the third quadrant off-state characteristics, better known as “body diode” conduction in Si MOSFETs, which is activated during converter dead-time, is of interest. For this article, the focus will be on the similarities and differences of Si MOSFETs and eGaN® FETs when operated as a “body diode” and outline their relative advantages and disadvantages.

Bodo’s Power Systems
By David Reusch & John Glaser
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APEC 2018: 关于EPC氮化镓器件的专业教育研讨会

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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Will GaN and the Tesla SpaceX car survive space radiation? Yes and no.

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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Renesas Electronics Ships Space Industry’s First Radiation-Hardened 100V and 200V GaN FET Power Supply Solutions

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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