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氮化镓器件缓解了硅器件的问题

氮化镓器件缓解了硅器件的问题

就像生活要面对现实一样,老年人离开舞台而让位给年轻人,硅器件也是需要向现实低头。 随着氮化镓器件的问世和普及,正逐步淘汰旧有可靠的硅器件。 在过去的四十年中,随着功率MOSFET器件的结构、技术和电路拓扑的创新与不断增长的电力需求同步发展,电源管理的效率和成本一直以来得以稳步改善。 但是,在业界发展的新时代,随着硅功率MOSFET器件接近其理论极限,其演进速度下降了很多。 同时,新材料氮化镓的理论性能极限稳步发展,其性能极限比老化的MOSFET器件高出6,000倍,并且比目前市场上最好的氮化镓产品高出300倍。

EEWeb
2020年7 月16日
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硅片已死……分立功率器件快将消失

硅片已死……分立功率器件快将消失

在超过四十年中,随着功率MOSFET器件的结构、技术和电路拓扑的创新,可满足不断增长的电力需求,因此改善了电源管理的效率和成本。 然而,在这新世纪的发展,随着硅功率MOSFET器件已经接近其理论极限,其改进速度已大为减慢。 与此同时,一种全新材料 - 氮化镓(GaN)- 正朝着新的理论性能领域的方向,稳步发展,其性能是老化的MOSFET器件的6,000倍,以及是目前市场的最优越GaN器件的300倍。

EETimes
2020年6月
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氮化镓与48 V应用 – 目前的发展及何去何从?

氮化镓与48 V应用 – 目前的发展及何去何从?

中压氮化镓场效应晶体管(eGaN FET)的成本在三年前已经比等效额定功率MOSFET器件的成本更低。当时,EPC公司决心利用氮化镓场效应晶体管的性能及成本效益优势,积极研发及支持48 V输入或输出的应用。车用及计算机应用的48 V 转换逐渐成为全新的架构,也成为了功率系统的全新标准。

Power Systems Design
2020年3月31日
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无线电源在线硏讨会:为什么氮化镓器件在符合AirFuel标准的共振式无线电源应用中,可以提升效率、缩小尺寸及降低成本?

无线电源在线硏讨会:为什么氮化镓器件在符合AirFuel标准的共振式无线电源应用中,可以提升效率、缩小尺寸及降低成本?

宜普电源转换公司首席执行官Alex Lidow 在是次硏讨会讨论氮化镓技术如何大大改善系統的效率、尺寸及成本,从而加快磁共振及AirFuel共振技术的普及。

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GaN in Space

GaN in Space

This article discussed an oft forgotten or little-noticed part of the spacecraft enabling travel into outer space---power management in the space vehicle. Wide bandgap semiconductors like gallium nitride (GaN), silicon carbide (SiC), as well as diamond, are looking to be the most promising materials for future electronic components since the discovery of silicon. These technologies, depending upon their design, offer huge advantages in terms of power capability (DC and microwave), radiation insensitivity, high temperature and high frequency operation, optical properties and even low noise capability. Therefore, wide bandgap components are strategically important for the development of next generation space-borne systems. eGaN devices are quickly gaining momentum in the space industry and we will see many more applications for them by NASA and commercial contractors in future programs like Artemis and other programs in countries around the globe pursuing efforts into Space.

Power Systems Design
November, 2019
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功率半导体战争开始了

功率半导体战争开始了

氮化镓(GaN)及碳化硅(SiC)器件的价格下调,对客户而言,更为吸引。多家供应商推出基于氮化镓及碳化硅的功率半导体,摩拳擦掌,正在爆发新一轮的半导体大战,全速进攻传统硅基器件的市场份额。

Semiconductor Engineering
2019年10月
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The Amazing New World of Gallium Nitride

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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PCIM Europe – where power is at the core of innovation

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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The Power and Evolution of GaN, Part 6: GaN Technology Adoption and Roadmap

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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Efficient Power Conversion (EPC) to Sponsor Inaugural ‘GaN Con’ with Yole Développement (Yole) and SEMI Covering the Entire Power GaN Industry from Manufacturers to End Users

Efficient Power Conversion (EPC) to Sponsor Inaugural ‘GaN Con’ with Yole Développement (Yole) and SEMI Covering the Entire Power GaN Industry from Manufacturers to End Users

In this conference GaN market and technology status will be addressed and its future evolution will be debated by mixing visions from designers, manufacturers, and end users.

EL SEGUNDO, Calif. — January 2019 — Efficient Power Conversion (EPC) is joining forces with Yole Développement (Yole) and SEMI to sponsor the first ever ‘GaN Con,’ an industry networking event covering the entire power GaN industry from manufacturers to end users. The theme of GaN Con is “Power GaN: From promises to possible market explosion” and is focused on the emerging GaN market and the state-of-the-art for its underlying technology.

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GaN 的功率和演变- 第5部分:采用eGaN FET和集成电路构建低成本、高效的12 V - 1 V 负载点转换器

GaN 的功率和演变- 第5部分:采用eGaN FET和集成电路构建低成本、高效的12 V - 1 V 负载点转换器

氮化镓器件对提升主流应用的效率的贡献很大,例如在传统硅基12 V - 1 V负载点 DC/DC转换器。基于eGaN集成电路的12 V转到1 V、12 A负载转换器在5 MHz的频率下,可以实现78%峰值效率及1000 W/in3 功率密度,而成本则低于每瓦0.2美元。

Power Systems Design
2019年1月
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氮化镓的强大推动力及演进 - 第四章:eGaN FET和集成电路为手术用的机械人带来精准的控制

氮化镓的强大推动力及演进 - 第四章:eGaN FET和集成电路为手术用的机械人带来精准的控制

本章讨论由于低压硅基氮化镓(GaN)器件具备超快速的开关速度,因此实现了很多全新应用的出现。这些应用推动了行业的改革,例如面向全自动驾驶汽车的激光雷达(lidar)、面向5G通信应用的包络跟踪,以及家用和用于办公室的大面积无线电源技术。此外,我们会探讨氮化镓功率器件如何为手术用的机械人带来精准的控制,从而推动了医疗行业的最新发展。

Power Systems Design
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The Power and Evolution of GaN, Part 3: How to Build an Ultra-Fast High-Power Laser Driver using eGaN FETs - That Sees Farther, Better, and at a Lower Cost!

The Power and Evolution of GaN, Part 3: How to Build an Ultra-Fast High-Power Laser Driver using eGaN FETs - That Sees Farther, Better, and at a Lower Cost!

In the first article in this series, how gallium nitride (GaN)-on-silicon low voltage power devices have enabled many new applications, such as light detection and ranging (LiDAR), envelope tracking, and wireless power was discussed. In this article, more detail on one of these leading applications, LiDAR, will be explored. How GaN is being used to make LiDAR systems that see farther, with higher resolution, and at lower cost will be shown.

Power Systems Design
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硅基氮化镓功率器件如何把硅基功率MOSFET逐出?

硅基氮化镓功率器件如何把硅基功率MOSFET逐出?

专为高效电源转换而设的氮化镓功率晶体管已经投产7年多了。全新的市场例如激光雷达、包络跟踪及无线电源,都成为氮化镓的新兴市场,因为氮化镓具备超高速的的开关速度。这些市场使得氮化镓产品得以量产、成本更低及具备优越的可靠性。这些优势为比较保守的设计工程师提供更大的利好条件,因此,DC/DC转换器工程师、AC/DC转换器及车载应用工程师都开始对氮化镓器件进行评估。要把120亿美元的硅基MOSFET市场转为氮化镓市场,还有什么壁垒呢?就是信心的问题。设计工程师、制造工程师、采购经理及管理层都必需对氮化镓技术的优势有足够的信心、相信氮化镓技术可以解决设计师对采用全新技术的风险的疑问。让我们看看3个主要构成风险的因素:供应链、成本及产品的可靠性。

IEEE Spectrum
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氮化镓的雷霆威力及演变

氮化镓的雷霆威力及演变

从2010年开始,自硅基氮化镓(GaN)晶体管商用化后,低压氮化镓晶体管推动了很多全新应用的发展。氮化镓器件具备超快速开关,推动全新市场诸如激光雷达、包络跟踪及无线电源市场的出现。这些全新应用进一步实现更强大的供应链、低制造成本及器件前所未有的高可靠性。这些优势使得比较保守的设计工程师在DC/DC转换器、AC/DC转换器及车载等各种应用开始对氮化镓器件进行评估。在本文章系列,我们将讨论多种发挥氮化镓器件优势的应用,实现最终产品差异化的竞争优势。首先,我们会探讨是什么因素加快了氮化镓器件的普及。

Power Systems Design
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The Growing Ecosystem for eGaN FET Power Conversion

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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