宜普电源转换公司(EPC)和Analog Devices(ADI)公司携手新推的参考设计采用经过全面优化的新型模拟控制器来驱动EPC的氮化镓场效应晶体管，可实现超过96.5%的效率。

宜普电源转换公司(EPC)宣布新推EPC9158，这是一款工作在500 kHz开关频率的双输出同步降压转换器参考设计，可将48 V~54 V的输入电压转换为12 V稳压输出，可提供高达每相25 A电流或50 A总连续电流。ADI的新型LTC7890同步氮化镓降压控制器与EPC的超高效GaN FET相结合，可为高功率密度应用提供占板面积小且非常高效的解决方案。该解决方案在48 V/12 V 、50 A连续电流下可实现 96.5%的效率。

The EPC2050 offers power systems designers a 350 V, 65 mΩ, 26 A power transistor in an extremely small chip-scale package.  These new devices are ideal for applications such as multi-level converters, EV charging, solar power inverters, and motor drives.

EL SEGUNDO, Calif. — April 2018 — Efficient Power Conversion announces the EPC2050, a 350 V GaN transistor with a maximum R_DS(on) of 65 mΩ and a 26 A pulsed output current. Applications include EV charging, solar power inverters, motor drives, and multi-level converter configurations, such as a 3-level, 400 V input to 48 V output LLC converter for telecom or server power supplies.

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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