EPC技术文章

Chasing the Speed of Light

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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PCB Power Loop Layout for Chip-scale Package GaN FETs Optimizes Electrical and Thermal Performance

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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Dispelling a Myth – GaN and Motor Drivers

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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Reference design aimed at e-bikes

EPC’s inverter reference design is based around a GaN chip to reduce powertrain sizes

E-mobility Engineering
September, 2022
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Packaged GaN FETs Offers Footprint Compatible Solutions to Optimize Performance vs. Cost

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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GaN vs. Silicon Smackdown

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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从氮化镓器件的行为确定其性能的模型

氮化镓场效应晶体管和集成电路的用户现在有了一个工具来确定应用中需要的降额和降额设计中应考虑的因素。宜普公司开发了一个基于第一原理的物理模型,以解释氮化镓晶体管在硬开关时,导通电阻如何上升。本文提供了两个同步整流应用实例的演示。

Electronic Specifier
2022年5月
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基于GaN器件、在兆赫频率下开关的多相转换器

本文介绍了基于氮化镓器件、具有120 VDC输入电压、工作频率为 6.7 MHz 的两相 DC/DC转换器。 120 VDC 是国际太空站 (ISS) 二次电路系统中的标准电压水平。

使用具备高功率密度和开关超快等优势的GaN FET ,Tell-I 公司新开发的 SDK 电路板使用两相来超越正常的开关速度。 多相配置支持用于 ISS 等系统的标准120-V 总线电压,让交错转换器在 3 MHz、5 MHz 和 6.87 MHz 下实现高效开关。使用四个 EPC2019 GaN FET和支持小型栅极驱动及功率环路的两个 LMG1210 栅极驱动器,可实现最佳和紧凑的布局。

Power Electronics News
2022年4月
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GaN ePower Integrated Circuits Applied to Motor Drives

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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宽带隙器件建构高效节能绿世界

以碳化硅(SiC)、氮化镓(GaN)材料为主流的宽带隙(WBG)半导体功率器件,在节能永续意识抬头的今日成为各种功率系统应用的宠儿。2022年Tech Taipei研讨会首度以WBG器件为题,邀请业界重量级业者,从设计、制造、测试等不同面向与现场超过400位听众分享最新技术与应用趋势...

EE Times Taiwan
2022年3月25日
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氮化镓技术提高数据中心的功率密度

当数据中心的服务器转用48 V架构,氮化镓晶体管可以替代目前的硅MOSFET器件,性能得以进一步提升和成本可以更低。

Data Center Dynamics
2022年3月
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High Performance 1 kW per Phase 48 V/12 V Converter Using GaN ePower Stage

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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Premium Motor Drive Performance at Low Cost for e-bikes, Drones, and Robotics with GaN FETs from EPC

The EPC9167 GaN-based inverter reference design enhances motor system performance, range, precision, torque, all while lowering overall system cost. The extremely small size of this inverter allows integration into the motor housing resulting in the lowest EMI, highest density, and lowest weight.

Robotics Tomorrow
March, 2022
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面向e-Mobility应用的DC/DC参考设计

由氮化镓技术专家 EPC 与 MPS 合作开发的双向转换器可实现97%的峰值效率。

EETimes
2022年2月
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Better thermal management of eGaN FETs

A few simple thermal management guidelines can help conduct heat away from GaN FETs. Enhancement-mode gallium nitride (eGaN) FETs offer high power-density with ultra-fast switching and low on-resistance, all in a compact form factor. However, the power levels these high-performance devices provide can be limited by extreme heat-flux densities. If not managed properly, the generated heat can compromise reliability and performance. Fortunately, chip-scale packaging for eGaN FETs can be leveraged at the board-side and the backside (i.e., case) to better dissipate heat.

Power Electronics Tips
February, 2022
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Electrifying Power Hungry Loads

This article presents the design and performance of an automotive buck/reverse-boost converter with GaN for efficient 48 V power distribution.

Electronics Today
December/January Edition
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Automotive Buck/Reverse-Boost Converter with GaN for Efficient 48 V Power Distribution

Demonstrating the design of a bi-directional DC-DC converter for automotive 48 V power distribution, showing how GaN technology is a powerful enabler for efficient electrification. The trend towards increasing electrification in the automotive industry enables car makers both to deliver new innovations to market cost-effectively and to meet increasingly stringent emissions legislation. Raising the vehicle’s main bus voltage to 48 V helps meet the demands of power-hungry systems such as the start-stop motor/generator of a mild hybrid vehicle, as well as loads such as electric power steering, electric supercharging, and vacuum and water pumps.

Bodo’s Power Systems
December, 2021
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面向高功率密度应用的 ePower 芯片组系列被选为Bodo‘s Power Systems “二月卓越产品”

EPC公司推出了100 V、65 A 集成电路芯片组,专为 48 V DC/DC 转换而设计,用于高密度计算应用,以及用于电动汽车、机器人和无人机的 48 V BLDC电机驱动器。EPC23101 eGaN IC 配合 EPC2302 eGaN FET成为ePower芯片组,其最大耐受电压为 100 V,提供高达 65 A 的负载电流,开关速度大于 1 MHz。

Bodo’s Power Systems
2022 年 2 月
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CES 2022: GaN Technology for the Next Future

The year 2021 was a transitional year in which the world decided to open its doors to GaN. In this interview with Power Electronics News during CES week, GaN industry experts confirmed that GaN is now proving its superiority over silicon.

Power Electronics News
January, 2022
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Low-Voltage GaN FETs in Motor Control Application; Issues and Advantages: A Review

In the field of motion control, there is a growing use of GaN devices, especially in low voltage applications. This paper provides guidelines for designers on the optimal use of GaN FETs in motor control applications, identifying the advantages and discussing the main issues.

Energies Journal
October, 2021
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