In this series we will look at the various ways the reliability of eGaN^® technology has been validated, and how we are developing models from our understanding of the physics of failures that can help predict failure rates under almost any operating condition. In this first installment and the next, we will look at the field experience from the past six years of GaN transistors use in a variety of applications from vehicle headlamps to medical systems to 4G/LTE telecom systems. Diving into the failure of each and every part leads to some valuable lessons learned.

Planet Analog
Chris Jakubiec, Robert Strittmatter, Ph.D., and Alex Lidow, Ph.D.
March 1, 2016
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宜普电源转换公司将于国际著名2016年APEC^®功率电子与应用研讨会展示面向广阔应用领域并基于卓越氮化镓技术的20多种演示电路。氮化镓技术切实改变了我们的生活方式。我们的技术专家将以最新技术为主题，举行合共六场演讲。

宜普电源转换公司的团队将于2016年3月20日至24日在美国加州Long Beach举行的2016年APEC研讨会，举行以氮化镓（GaN）技术及应用为主题的六场演讲。此外，EPC将展示最新的eGaN^® FET及集成电路，以及分享客户的基于eGaN技术的最终产品。 在探究各个应用领域的发展之同时，即场演示包括与Qi及AirFuel标准兼容并支持多模式解决方案的无线电源系统、单级48 V转1 V DC/DC转换器、利用LiDAR技术制作实时3D图像的照相机及与LTE兼容的包络跟踪电源。欢迎莅临我们的展台（#2244）参观。

Power transistors with faster switching speeds will enable power supplies with smaller form factors and higher energy transfer efficiencies. Indeed, the elimination of heat sinks will give designers the ability to visualize entirely new form factors for power bricks and modules, including those enabling wireless power transfers. Gallium-nitride (GaN) transistors fabricated on silicon substrates can boost efficiencies and help shrink the footprint of power supplies.

Electronic Design
March, 2016
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本篇文章阐述面向使用第四代移动通信技术（4G）LTE带宽的无线通信基站基础设施并采用EPC8004高频氮化镓场效应晶体管设计的包络跟踪电源。基于eGaN^® FFET并采用四相位拓扑的软开关降压转换器可以准确地跟踪峰均比(PAPR)为7 dB的20 MHz LTE包络信号，提供60 W以上的平均负载功率，而总效率可高达92%。这种设计的可扩展性能可以支持不同的功率级别，工程师只需选择不同的EPC场效应晶体管设计不同的系统，从而可以满足不同功率级别的要求。

Bodo’s Power Systems
张远哲博士及Michael de Rooij博士
2016年3月
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采用eGaN^®FET、工作在6.78 MHz频率并与AirFuel^™无线电源标准兼容的EPC9065开发板可以实现最高功率及最高效率。

宜普电源转换公司（EPC）推出EPC9065开发板，可作为面向AirFuel^™联盟的Class 4及Class 5无线电源传送应用的放大器功率级。 该板的配置采用零电压开关（ZVS）差分模式D类放大器拓扑，而且不只限于6.78 MHz工作频率（最低ISM频带）。

全新的EPC2040氮化镓场效应晶体管（eGaN^®FET）具备超快速开关性能，可以支持需要更高分辨率及准确性、使用脉冲式镭射驱动器的应用，诸如在扩增实景（augmented reality）系统及全自动驾驶汽车中，利用光学遥感技术（LiDAR ）、三维感测的导航系统。

宜普电源转换公司宣布推出EPC2040功率晶体管，它是一种超小型、具备快速开关性能的氮化镓功率晶体管，面向高速终端应用，可实现优越的分辨率、更快速的响应时间及更高准确度。此外，由于在整个工作温度范围内，器件具有高准确度门限，因此当镭射受热，可确保系统的稳定性。例如该晶体管在LiDAR 技术所采用的脉冲式镭射驱动器是理想的器件。LiDAR技术是全自动驾驶汽车的导航系统及扩增实景平台的重要技术。EPC2040的优越性能在这些系统中可以实现更高准确度及分辨率。

In this installment, we present a method to design a suitable EMI filter that can reduce unwanted frequencies to levels within radiated EMI specifications, and do this without negatively impacting the performance of the wireless power coil. In addition, the overall radiated EMI design aspects will also be covered.

EEWeb - Wireless & RF Magazine
Michael de Rooij, Ph.D.
February, 1, 2016
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面向大电流、高频的负载点应用的EPC9059开发板内含业界第一种单个半桥式增强型氮化镓(eGaN^®)集成电路，可实现更高功率密度。

宜普电源转换公司（EPC）推出半桥式开发板（EPC9059），专为大电流、高频的负载点（POL）应用而设，目的是利用氮化镓集成电路（eGaN IC）的优势，缩小功率转换系统的尺寸。该板具有30 V最高器件电压、50 A 最大输出电流。在这应用中，两个30 V 的eGaN IC（EPC2100）并联工作并配备板载驱动器，从而可以实现更高的输出电流。与硅基MOSFET相比，由于氮化镓器件具有卓越的均流能力，因此更适合并联操作。

Improving low-voltage DC/DC converter performance with GaN transistors:
The emergence of commercially available and cost-effective gallium nitride (GaN) power transistors begins a new age in power electronics. There are significant benefits in using enhancement-mode gallium nitride FET (eGaN FET) devices in power converters for existing data center and telecommunications architectures centering around an input voltage of 48 VDC with load voltages as low as 1 VDC. High-performance GaN power transistors can enable new approaches to power data center and telecommunications systems with higher efficiency and higher power density than possible with previous Si MOSFET based architectures.

Power Systems Design
David Reusch, Ph.D., and John Glaser, Ph.D.
January, 25, 2016
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Some of the best minds in our industry, like the group that was at a DesignCon 2016 book signing. Among them was Michael de Rooij, Efficient Power Conversion VP of Application Engineering who signed copies of his book Wireless Power Handbook, Second Edition. DesignCon attendees enjoyed browsing and buying books and having the authors autograph them as well. The authors also answered questions and discussed their areas of expertise with inquiring minds in attendance.

EDN Network
January 22, 2016
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宜普电源转换公司（EPC）推出由业界专家制作合共九个教程单元的高级教学视频系列，内容涵盖设计基础、DC/DC转换应用、无线充电应用、器件的可靠性及氮化镓场效应晶体管（eGaN FET）及集成电路的各种其它应用。

宜普电源转换公司（EPC）增加合共九个教程单元的教学视频系列，扩大它的视频资源以拓展氮化镓技术的知识库，为功率系统设计工程师提供高级技术教程，包括应用范例，教授如何使用氮化镓晶体管及集成电路设计出更高效的功率转换系统。

宜普电源转换公司（EPC）的全新开发板帮助功率系统设计师容易并且快速地 对应用于E类放大器拓扑、电流模式D类放大器拓扑及push-pull 转换器的200 V氮化镓晶体管进行评估，其工作效率可以高达30 MHz。

宜普电源转换公司（EPC）宣布推出高频、基于氮化镓晶体管并采用差分模式的开发板，可以在高达30 MHz下工作。 推出开发板的目的是帮助功率系统设计师利用简易方法对氮化镓晶体管的优越性能进行评估，使得他们的产品可以快速量产。

Award Recognizes Innovation in Power Device Technology for Enabling the Commercialization of GaN

EL SEGUNDO, Calif, — January 2016 — Today, Efficient Power Conversion (EPC) announced that its CEO Alex Lidow was selected as the recipient of the 2015 SEMI Award for North America for the innovation of power device technology, enabling the commercialization of GaN. Dr. Lidow is being honored for his work in the area of Process and Technology Integration.

张远哲博士将为业界的包络跟踪应用创建设计基准及帮助客户利用氮化镓场效应晶体管（eGaN^® FET）实现高频、高性能的电源转换系统。

宜普电源转换公司（EPC）宣布张远哲（Yuanzhe Zhang）博士加入EPC的应用工程团队，担任应用工程总监。

According to Powerpulse.net, “This selection is based on EPC's domination of the 50 most-read product news stories for 2015. EPC products account 8 of the top 50 product stories for 2015 (as measured by readership). This is the first time that a single company has accounted for such a large number of product news stories (that amounts to 2 per quarter), including 1 in the Top 10 and 5 in the Top 20.”

PowerPulse.net
January 4, 2016
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