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Layout Considerations for GaN Transistor Circuits

Layout Considerations for GaN Transistor Circuits

Gallium nitride (GaN) transistors have been in mass production for over 10 years. In their first few years of availability, the fast switching speed of the new devices – up to 10 times faster than the venerable Si MOSFET – was the main reason for designers to use GaN FETs. As the pricing of GaN devices normalized with the MOSFET, coupled with the expansion of a broad range of devices with different voltage ratings and power handling capabilities, much wider acceptance was realized in mainstream applications such as DC-DC converters for computers, motor drives for robots, and e-mobility bikes and scooters. The experience gained from the early adopters has led the way for later entrants into the GaN world get into production faster. This article is the first in a series of articles discussing three topics that can help power systems designers achieve the most out of their GaN-based designs at the lowest cost. The three topics are: (1) layout considerations; (2) thermal design for maximum power handling; and, (3) EMI reduction techniques for lowest cost.

Bodo’s Power Systems
January, 2021
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Intrinsic Failure Mechanisms in GaN-on-Si Power Transistors

Intrinsic Failure Mechanisms in GaN-on-Si Power Transistors

Standard qualification testing for semiconductors typically involves stressing devices at-or-near the limits specified in their data sheets for a prolonged period of time, or for a certain number of cycles. The goal of qualification testing is to have zero failures out of a large group of parts tested. By testing parts to the point of failure, an understanding of the amount of margin between the data sheet limits can be developed, but more importantly, an understanding of the intrinsic failure mechanisms of the semiconductor can be found.

IEEE Power Electronics Magazine
December, 2020
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GaN Reliability Testing Beyond AEC for Automotive Lidar

GaN Reliability Testing Beyond AEC for Automotive Lidar

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 discus a novel testing mechanism developed by EPC to test eGaN devices beyond the qualification requirements of the Automotive Electronics Council (AEC) for the specific use case of lidar.

Power Systems Design
December, 2020
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GaN in Space Applications

GaN in Space Applications

Gallium nitride power device technology enables a new generation of power converters in space operating at higher frequencies, higher efficiencies, and greater power densities than everachievable before. GaN power devices can also exhibit superior radiation tolerance compared with Silicon MOSFETs depending upon their device design.

Power Electronics Europe
December, 2020
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採用氮化鎵技術的功率轉換應用

採用氮化鎵技術的功率轉換應用

氮化鎵(GaN)技術已實現重大改進,而且它極具成本效益,可以替代MOSFET元件。 從2017年開始,採用氮化鎵元件的48 V DC/D轉換器開始成為市場上重要的應用。 各種拓撲諸如多相和多級降壓轉換器,實現具備更高效率的全新解決方案,可以滿足IT和汽車市場的能源需求。

Power Electronics News
2020年11月
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GaN ePower™ Ultrafast Switch with Integrated Gate Driver for Indirect Time-of-Flight Laser Drivers

GaN ePower™ Ultrafast Switch with Integrated Gate Driver for Indirect Time-of-Flight Laser Drivers

Gallium nitride FETs have continued to gain traction in many power electronic applications, but GaN technology is still in the early part of its life cycle. While there is much room to improve basic FET performance figures of merit an even more promising avenue is the development of GaN power ICs.

Bodo’s Power Systems
November, 2020
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25 Autonomous Vehicles Influencers to Follow by 2020

25 Autonomous Vehicles Influencers to Follow by 2020

The ultimate aim of Artificial Intelligence is to provide machines the ability to operate autonomously. One such area which is projected to grow exponentially over the next decade is Autonomous Vehicles. With Artificial Intelligence coupled with the rapid advances in electronics and computer technology, the word driverless will soon take over the roads.

AI Time Journal
October, 2020
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氮化鎵的崛起:矽基氮化鎵積體電路重新定義功率轉換

氮化鎵的崛起:矽基氮化鎵積體電路重新定義功率轉換

離散式功率電晶體,無論它是矽基還是矽基氮化鎵,都進入了最後發展階段。 矽基氮化鎵積體電路可以在較小的佔板面積內實現更高的性能,並且顯著降低成本和減少所需的元件工程。 本文詳細闡析氮化鎵元件的崛起和矽基氮化鎵積體電路如何重新定義功率轉換。

Bodo’s Power Systems
2020年10月
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Testing Gallium Nitride Devices to Failure Under Extreme Voltage and Current Stress

Testing Gallium Nitride Devices to Failure Under Extreme Voltage and Current Stress

Standard qualification testing for semiconductors typically involves stressing devices at-or-near the limits specified in their data sheets for a prolonged period of time, or for a certain number of cycles, with the goal of demonstrating zero failures. By testing parts to the point of failure, an understanding of the amount of margin beyond the data sheet limits can be developed, but more importantly, an understanding of the intrinsic failure mechanisms of the semiconductor can be found.

Bodo’s Power Systems
September, 2020
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面向快速發展的關鍵應用的GaN HEMT,它的性能優於MOSFET

面向快速發展的關鍵應用的GaN HEMT,它的性能優於MOSFET

矽功率MOSFET未能跟上電力電子行業的發展變化,而效率、功率密度和更小的外型尺寸等因素是行業的主要需求。 矽MOSFET元件的性能已達到其理論極限,並且由於電路板的空間非常寶貴,因此功率系統設計人員必需找出替代方案。 氮化鎵(GaN)元件是一種高電子遷移率電晶體(HEMT),這種半導體正為新興應用不斷增值。

EETimes
2020年8月
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Podcast: Yes, We GaN: Gallium Nitride and Its Role in Power ICs

Podcast: Yes, We GaN: Gallium Nitride and Its Role in Power ICs

In this inaugural episode, guests are Alex Lidow, CEO of Efficient Power Conversion Corp., and Dinesh Ramanathan, co-CEO of NexGen Power Systems. EPC and NexGen both have expertise with gallium nitride technology and GaN power devices. EETimes speaks with both about the technology and about the market for GaN power devices.

EETimes
August, 2020
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GaN Reliability Testing Beyond AEC Proves Robustness for Automotive Lidar Applications

GaN Reliability Testing Beyond AEC Proves Robustness for Automotive Lidar Applications

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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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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虛擬圓桌會議 : 用於D類音訊放大器的氮化鎵元件與矽元件的比較(第2部份,共2部份)

虛擬圓桌會議 : 用於D類音訊放大器的氮化鎵元件與矽元件的比較(第2部份,共2部份)

在EEWorld “虛擬圓桌會議” 關於D類音訊的討論的第二部份中,我們的小組成員深入探討了新興氮化鎵元件(GaN)對D類設計的影響:矽元件在哪方面仍然佔主導地位? 在D類放大器中使用GaN的性能優勢是什麼? D類放大器中GaN與矽的未來預期趨勢如何?

參加這個虛擬圓桌會議包括Analog Devices公司音訊系統架構師Joshua LeMaire(JL)、 宜普電源轉換公司(EPC)戰略技術銷售副總裁Steve Colino(SC)和 英飛淩(Infineon )D類音訊應用工程主管Jens Tybo Jensen(JTJ)。

EEWorld Online
2020年7月
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面向宇航應用的氮化鎵電晶體

面向宇航應用的氮化鎵電晶體

氮化鎵功率電晶體是面向嚴苛航太任務的功率和射頻應用的理想元件。 通過全新基於eGaN®元件的解決方案,EPC Space公司提供專門為商業衛星關鍵應用而設計的氮化鎵元件,可確保元件的耐輻射性能和對單粒子效應的免疫能力。 這些元件具有極高的電子遷移率、低溫度系數和非常低的導通阻抗。

EETimes
2020年7月
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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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