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面向多模式无线电源系统的单个放大器

面向多模式无线电源系统的单个放大器

采用无线电源充电的产品不断增多及各种移动应用采用多种不同的无线电源标准使消费者容易混淆,而且阻碍无线电源应用的普及。本章讨论可支持多种模式并工作在各种高(6.78 MHz)低(100 kHz - 315 kHz)频率的放大器拓扑。

EEWeb - Wireless & RF 杂志
2015年8月
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Practical Layout Techniques to Fully Extract the Benefits of eGaN FETs

Practical Layout Techniques to Fully Extract the Benefits of eGaN FETs

The trend for electronics is to continually push towards miniaturization while increasing performance. With silicon MOSFET technology fast approaching its theoretical limit, enhancement mode gallium nitride (eGaN®) FETs from EPC have emerged to offer a step change improvement in power FET switching performance, enabling next generation power density possibilities by decreasing size and boosting efficiency. This article will explore the recommended layout techniques required to fully extract the benefits of EPC’s eGaN FETs.

By: Ivan Chan & David Reusch, Ph.D.
EEWeb –Modern Printed Circuits
August, 2015
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宜普电源转换公司(EPC)推出面向无线电源传送及其它高频应用并 具备大功率、小尺寸及低成本优势的全新eGaN FET

宜普电源转换公司(EPC)推出面向无线电源传送及其它高频应用并 具备大功率、小尺寸及低成本优势的全新eGaN FET

全新eGaN® FET (EPC2039)具备优越性能、大功率及采用超小型封装的优势,其价格也可以支付得起。

宜普电源转换公司宣布推出EPC2039功率晶体管。该产品是一种具备高功率密度的增强型氮化镓((eGaN®)功率晶体管,其尺寸只是1.82 mm2、80 VDS、6.8 A及在栅极上施加5 V电压时的最大阻抗为 22 mΩ。 由于它在超小型封装内具备高开关性能,因此它在电源转换系统具备高性能优势。

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宜普电源转换公司(EPC)推出面向D类音频放大器的理想器件 -- 小尺寸、具备超快速开关性能并工作在2 MHz以上频率的单片半桥式氮化镓功率晶体管

宜普电源转换公司(EPC)推出面向D类音频放大器的理想器件 -- 小尺寸、具备超快速开关性能并工作在2 MHz以上频率的单片半桥式氮化镓功率晶体管

氮化镓功率晶体管 -- EPC2106为功率系统设计师提供的解决方案可以在2 MHz以上频率开关,从而不会干扰AM频段及降低过滤成本,因此是具备低失真性能的D类音频放大器的理想选择。

宜普电源转换公司宣布推出单片半桥式增强型氮化镓晶体管 --EPC2106。通过集成两个eGaN®功率场效应晶体管而成为一个集成电路可以去除互感及PCB板上器件之间所需的间隙空间,从而提高效率(尤其是在更高频时)及提高功率密度而同时降低终端用户的功率转换系统的组装成本。

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Wireless Charging Metrics Debated

Wireless Charging Metrics Debated

Wireless charging may have a standards battle to contend with, but there’s also a major a measurement problem. The quest for convenient living and energy conservation poses a ‘Ying/Yang’ dilemma living in the age of electronics. This is certainly the case with wireless power transfer technology. This rapidly emerging technology has the promise of “cutting the cord” and displacing the need for AC/DC wall adapters and perhaps eventually wall sockets. The question now is; will wireless power increase our carbon footprint by being less efficient than the traditional plug-in AC/DC wall adapters?” Are some wireless systems more efficient than others? These are two fundamental questions that need to be examined in an energy conscious world governed by energy efficient standards.

EETimes
August 4, 2015
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