This paper deals with the application of the latest generation low voltage (up to 80 V) Gallium Nitride (GaN) devices for motor drive applications in the field of electric micro-mobility. A two-level inverter topology oriented to light electric traction (such as electric scooters) with a power rate of 1500 W has been considered. An experimental board using two GaN FETs in parallel connection for each switch of an inverter leg has been arranged. The intrinsic parameters spread of the device, as well as the leakage inductances of both the circuit and the PCB, to evaluate the impact on the current share during both the transient phase and in the steady state have been investigated. In the paper, several simulation runs have been carried out and described. Furthermore, the inverter experimental board has been used to evaluate the phase voltages and currents at different load conditions. Finally, the temperature limits versus phase current variation have been evaluated.

IEEE 2022 AEIT International Annual Conference (AEIT)
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In this article EPC explains the improved performance in their Gen 6 GaN FETs and how the resulting devices can achieve the same R_DS(on) as previous generation devices in die that are half the size.

How2Power
November, 2022
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EPC’s mission is to make GaN power devices that are higher performance and lower cost compared to silicon. GaN devices increase power density, improve efficiency and enable new applications and with the rising cost of energy globally, it is no surprise that the adoption rate of our GaN devices is accelerating dramatically.

Bodo’s Power Systems
November, 2022
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With increasing legislation aimed at higher fuel efficiency standards, vehicle manufacturers are searching for cost-effective solutions to meet these demands while still providing the power required for ever-increasing electronically driven functions.  This article details a bi-directional high power converter for mild-hybrid cars and battery backup units using GaN FETs to achieve efficiency exceeding 96% when converting from 48 V to 14.3 V at 500 kHz switching frequency.

Power Electronics Europe
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From Nov. 15 to 18, electronica 2022 will bring the international electronics industry together at the Munich exhibition grounds. Wide Bandgap Semiconductors, Renewable Energies, Smart Grid, and Energy Storage will be the major topics covered by the Power Electronics Forum at electronica 2022. In this podcast, onsemi president and CEO Hassane El-Khoury, Silanna Semiconductor North America CEO Mark Drucker, and of Efficient Power Conversion (EPC) CEO Alex Lidow will introduce the Power Electronics Forum. Interview with Alex Lidow starts at 31:55

EETimes
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GaN devices have gone from initial R&D to mainstream designs over the last 15 years. Unfortunately, there are many misunderstandings left-over from those early-stage bipolar drive circuit developments or dead-end technology branches. One of the most pernicious is the topic of bipolar drive. In actuality, unipolar drives are the best way to drive eGaN^® FETs.

Power Electronics Tips
October, 2022
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Gallium nitride devices are leading the innovation in power conversion. The benefits of GaN-based inverters are becoming increasingly evident in motor drive applications.

Power Electronics News
October, 2022
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As the level of automation increases in machines, detailed awareness of the surroundings becomes necessary. Time-of-flight based 3D imaging systems have become the eyes of machines. eGaN^® technology has been the workhorse of laser drivers for these systems, enabling the resolution to make intelligent decisions.

Bodo’s Power Systems
October, 2022
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In this article, different power loop layouts are analyzed with simultaneous considerations for thermal management and electric parasitics.

The results show that an improved layout can provide a significant reduction in operating temperature rise while maintaining electrical performance benefits.

EE Power
October, 2022
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There is a commonly held belief in the industry that GaN devices are wasted on inverters for electric motors. After all, if the performance of the system is restricted by the use of a 20KHz PWM, then there can be little benefit in using a material that gains the majority of its advantages from faster switching speeds. However, according to Marco Palma, Director of Motor Drives Systems and Applications at EPC, there are some ways that GaN can still prove effective in that role.

Power Systems Design
September, 2022
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EPC’s inverter reference design is based around a GaN chip to reduce powertrain sizes

E-mobility Engineering
September, 2022
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GaN FETs in thermally enhanced QFN packages offer higher performance and smaller solution size for high power density applications, including DC-DC conversion, AC/DC chargers, solar optimizers and microinverters, motor drives, and Class D Audio

Power Electronics News
September, 2022
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Easy Engineering媒體採訪了宜普電源轉換公司（EPC）的市場行銷總監Renee Yawger，瞭解目前氮化鎵元件應用的情況和氮化鎵技術的未來。

Easy Engineering
2022年5月
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One way to tell when a new technology has passed the tipping point of adoption is by the voices advocating the status quo. The more conservative voices tend to cite older information that, given the fast change of trajectory that occurs at a tipping point, can lead to poor decisions for new designs. In the world of GaN power devices the tipping point occurred in the past two years when the rate of new GaN-based designs started to double year-on-year, and the legacy MOSFET designs started to face critical supply shortages due to their finely tuned, but less flexible supply chains. GaN devices, on the other hand, have remained in stock at most major distributors due to their relatively new and flexible supply chains utilizing older silicon foundries, but affording these foundries a new and vibrant future. In this article we will address some of the common misconceptions still showing up in articles and at conferences, usually presented by advocates of the status quo.

Bodo’s Power Systems
May, 2022
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氮化鎵場效應電晶體和積體電路的用戶現在有了一個工具來確定應用中需要的降額和降額設計中應考慮的因素。宜普公司開發了一個基于第一原理的物理模型，以解釋氮化鎵電晶體在硬開關時，導通電阻如何上升。本文提供了兩個同步整流應用實例的演示。

Electronic Specifier
2022年5月
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本文介紹了基於氮化鎵元件、具有120 VDC輸入電壓、工作頻率爲 6.7 MHz 的兩相 DC/DC轉換器。 120 VDC 是國際太空站 (ISS) 二次電路系統中的標準電壓水平。

使用具備高功率密度和開關超快等優勢的GaN FET ，Tell-I 公司新開發的 SDK 電路板使用兩相來超越正常的開關速度。 多相配置支持用於 ISS 等系統的標準120-V 匯流排電壓，讓交錯轉換器在 3 MHz、5 MHz 和 6.87 MHz 下實現高效開關。使用四個 EPC2019 GaN FET和支持小型閘極驅動及功率迴路的兩個 LMG1210 閘極驅動器，可實現最佳和緊凑的佈局。

Power Electronics News
2022年4月
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The latest ePower™ integrated circuits based on gallium nitride technology by Efficient Power Conversion are revolutionizing motor drive applications such as industrial drones, e-bikes, scooters, power tools.

Bodo’s Power Systems
April, 2022
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以碳化矽(SiC)、氮化鎵(GaN)材料為主流的寬能隙(WBG)半導體功率元件，在節能永續意識抬頭的今日成為各種電源系統應用的寵兒；2022年Tech Taipei系列研討會首度以WBG元件為題，邀請業界重量級業者，從設計、製造、測試等不同面向與現場超過400位聽眾分享最新技術與應用趨勢...

EE Times Taiwan
2022年3月
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當數據中心的伺服器轉用48 V架構，氮化鎵電晶體可以替代目前的矽MOSFET元件，性能得以進一步提升和成本可以更低。

Data Center Dynamics
2022年3月
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Automotive 48 V/12 V converters are essential in modern hybrid electric vehicles, as the energy is exchanged between the 48 V and 12 V buses. This two-voltage system accommodates legacy 12 V systems and provides higher power for 48V to loads such as vacuum and water pumps, electric super chargers, steering, and audio systems. Among all the requirements for the 48 V/12 V converter, efficiency, power density, size and cost are on the top of the list. This article addresses these design criteria by employing the GaN ePower™ Stage, EPC23101, and compares it with a previous design using discrete EPC2206 devices.

Bodo’s Power Systems
March, 2022
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