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氮化鎵元件緩解了矽元件的問題

氮化鎵元件緩解了矽元件的問題

就像生活要面對現實一樣,老年人離開舞臺而讓位給年輕人,矽元件也是需要向現實低頭。 隨著氮化鎵元件的問世和普及,正逐步淘汰舊有可靠的矽元件。 在過去的四十年中,隨著功率MOSFET元件的結構、技術和電路拓撲的創新與不斷增長的電力需求同步發展,電源管理的效率和成本一直以來得以穩步改善。 但是,在業界發展的新時代,隨著矽功率MOSFET元件接近其理論極限,其演進速度下降了很多。 同時,新材料氮化鎵的理論性能極限穩步發展,其性能極限比老化的MOSFET元件高出6,000倍,並且比目前市場上最好的氮化鎵產品高出300倍。

EEWeb
2020年7 月16日
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分類: 技術文章

矽片已死……離散功率元件快將消失

矽片已死……離散功率元件快將消失

在超過四十年中,隨著功率MOSFET元件的結構、技術和電路拓撲的創新,可滿足不斷增長的電力需求,因此改善了電源管理的效率和成本。 然而,在這新世紀的發展,隨著矽功率MOSFET元件已經接近其理論極限,其改進速度已大為減慢。 與此同時,一種全新材料 - 氮化鎵(GaN)- 正朝著新的理論性能領域的方向,穩步發展,其性能是老化的MOSFET元件的6,000倍,以及是目前市場的最優越GaN元件的300倍。

EETimes
2020年6月
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分類: 技術文章

氮化鎵與48 V應用 – 目前的發展及何去何從?

氮化鎵與48 V應用 – 目前的發展及何去何從?

中壓氮化鎵場效應電晶體(eGaN FET)的成本在三年前已經比等效額定功率MOSFET器件的成本更低。當時,EPC公司決心利用氮化鎵場效應電晶體的性能及成本效益優勢,積極研發及支持48 V輸入或輸出的應用。車用及電腦應用的48 V 轉換逐漸成為全新的架構,也成為了功率系統的全新標準。

Power Systems Design
2020年3月31日
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分類: 技術文章

無線電源線上硏討會:為什麼氮化鎵元件在符合AirFuel標準的共振式無線電源應用中,可以提升效率、縮小尺寸及降低成本?

無線電源線上硏討會:為什麼氮化鎵元件在符合AirFuel標準的共振式無線電源應用中,可以提升效率、縮小尺寸及降低成本?

宜普電源轉換公司首席執行長Alex Lidow 在是次硏討會討論氮化鎵技術如何大大改善系統的效率、尺寸及成本,從而加快磁共振及AirFuel共振技術的普及。

觀看線上硏討會

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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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分類: 技術文章

功率半導體戰爭開始了

功率半導體戰爭開始了

氮化鎵(GaN)及碳化矽(SiC)元件的價格下調,對客戶而言,更為吸引。多家供應商推出基於氮化鎵及碳化矽的功率半導體,摩拳擦掌,正在爆發新一輪的半導體大戰,全速進攻傳統矽基元件的市場份額。

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 的功率和演變- 第5部分:採用eGaN FET和積體電路構建低成本、高效的12 V - 1 V 負載點轉換器

GaN 的功率和演變- 第5部分:採用eGaN FET和積體電路構建低成本、高效的12 V - 1 V 負載點轉換器

氮化鎵元件對提升主流應用的效率的貢獻很大,例如在傳統矽基12 V - 1 V負載點 DC/DC轉換器。基於eGaN積體電路的12 V轉到1 V、12 A負載轉換器在5 MHz的頻率下,可以實現78%峰值效率及1000 W/in3 功率密度,而成本則低於每瓦0.2美元。

Power Systems Design
2019年1月
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氮化鎵的強大推動力及演進 - 第四章:eGaN FET和積體電路為手術用的機械人帶來精准的控制

氮化鎵的強大推動力及演進 - 第四章:eGaN FET和積體電路為手術用的機械人帶來精准的控制

本章討論由於低壓矽基氮化鎵(GaN)元件具備超快速的開關速度,因此實現了很多全新應用的出現。這些應用推動了行業的改革,例如面向全自動駕駛車輛的雷射雷達(lidar)、面向5G通信應用的波峰追蹤,以及家用和用於辦公室的大面積無線電源技術。此外,我們會探討氮化鎵功率元件如何為手術用的機械人帶來精准的控制,從而推動了醫療行業的最新發展。

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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基氮化鎵功率元件如何把矽基功率MOSFET逐出?

基氮化鎵功率元件如何把矽基功率MOSFET逐出?

專為高效電源轉換而設的氮化鎵功率電晶體已經投產7年多了。全新的市場例如雷射雷達、波峰追蹤及無線電源,都成為氮化鎵的新興市場,因為氮化鎵具備超高速的的開關速度。這些市場使得氮化鎵產品得以量產、成本更低及具備優越的可靠性。這些優勢為比較保守的設計工程師提供更大的利好條件,因此,DC/DC轉換器工程師、AC/DC轉換器及車載應用工程師都開始對氮化鎵器件進行評估。要把120億美元的矽基MOSFET市場轉為氮化鎵市場,還有什麼壁壘呢?就是信心的問題。設計工程師、製造工程師、採購經理及管理層都必需對氮化鎵技術的優勢有足夠的信心、相信氮化鎵技術可以解決設計師對採用全新技術的風險的疑問。讓我們看看3個主要構成風險的因素:供應鏈、成本及產品的可靠性。

IEEE Spectrum
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氮化鎵的雷霆威力及演變

氮化鎵的雷霆威力及演變

從2010年開始,自矽基氮化鎵(GaN)電晶體商用化後,低壓氮化鎵電晶體推動了很多全新應用的發展。氮化鎵元件具備超快速開關,推動全新市場諸如雷射雷達、波峰追蹤及無線電源市場的出現。這些全新應用進一步實現更強大的供應鏈、低製造成本及元件前所未有的高可靠性。這些優勢使得比較保守的設計工程師在DC/DC轉換器、AC/DC轉換器及車載等各種應用開始對氮化鎵元件進行評估。在本文章系列,我們將討論多種發揮氮化鎵元件優勢的應用,實現最終產品差異化的競爭優勢。首先,我們會探討是甚麼因素加快了氮化鎵元件的普及。

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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