项目及活动

International Conference on Environmental and Electrical Engineering (EEIC2022)

2022年6月28日星期二 - 2022年7月1日星期五
International Conference on Environmental and Electrical Engineering (EEIC2022)
地点: 捷克布拉格

用于LED驱动器、基于氮化镓器件的功率转换器的建模和实验验证 讲者:博士生、Politecnico di Torino 兼职教授 Luigi Solimene

LED驱动器应用要求在高开关频率条件下,器件可以在高功率工作。在DC/DC转换器中采用氮化镓晶体管(eGaN FET)可以满足这个要求。是次研讨会将研究采用高电流密度GaN FET的同步降压转换器(SBC)和为高亮度LED驱动器建模。首先,利用LTspice仿真软件描述并构建GaN FET模型。然后探讨同步降压操作以研究实际应用中推荐的模型。此外,我们会为您讲解SBC配置的半桥评估板的实验波形,以及与仿真结果进行比较,从而验证建模的方法。

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PowerUp Expo

2022年6月28日星期二 09:30 - 10:00
PowerUp Expo
地点: Virtual Event

Integrated Circuit GaN inverter for Motor Drive Applications above 1 kW Speaker: Marco Palma, Director of Motor Drive Systems and Applications

Leading the evolution of Gallium Nitride technology, EPC introduced in 2019 the first integrated circuit of the ePower family. These devices follow the “digital in - power out” concept to simplify converter and inverter designs. In this presentation I will show the experimental results of six EPC23101 integrated circuits connected in inverter topology to drive a motor. the EPC23101 was introduced in 2021 and is part of the ePower family. In the reference design EPC9173, the six EPC23101 are configured as floating smart switches with embedded gate driving function, decoupling the digital ground from the power ground and allowing the choice of source shunts to measure motor currents on the low side switches. The main difference between a conventional MOSFET inverter and the EPC9173 GaN IC inverter is that the GaN inverter is operated at a higher PWM frequency and the lower dead time. This allows the extend the use of the permanent magnet motor beyond the limits imposed by the MOSFET inverter, allowing a higher system efficiency.

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EPC/电源网直播技术研讨会

2022年6月30日星期四 10:00 - 11:45
EPC/电源网直播技术研讨会
地点: Online

6.30直播带你了解基于GaN的三大创新应用场景 — DToF/IToF激光雷达、USB PD3.1通用输入电源、BLDC电机驱动应用 讲者: 胡琛、朱修春

我们诚意邀请你参加在dianyuan.com举办的线上研讨会,我们的GaN专家将与你分享基于GaN的1)激光雷达应用,2)USB PD3.1通用输入电源和3)BLDC电机驱动应用的最新发展。我们将现场为你答疑解难、回答技术问题,并在线上研讨会结束后与你讨论。请不要错过这个与GaN专家互动的机会!

基于氮化镓器件且极具成本效应的直接和间接飞行时间激光雷达发射器

三维成像通过直接飞行时间(DToF)和间接飞行时间(IToF)激光雷达实现得到,用于新兴的自主应用和机器人、无人机的防撞、精确的三维传感、监控系统、吸尘器等应用。我们将分享用于光距和测距(激光雷达)的极快ToF激光驱动器IC如何缩小尺寸、降低成本和实现更安全的自主应用。这些激光驱动器是支持DToF和IToF三维相机的快速、小型化和低成本的解决方案。在设计、布局和组装功率系统时,集成多个器件于单个芯片上可节省PCB上的占板面积、提高效率、降低成本和易于使用。

针对PD3.1应用的EPC9171参考设计

在新的USB PD3.1 标准下,USB电压增加到48 V,在电流限制为5 A的情况下,总功率为240 W。为了支持这个应用,我们开发了EPC9171参考设计。这是一个240 W,宽电压输入的隔离式电源模块、输入电压范围为90-265 VAC、输出为15-48 V、输出电压纹波为100 mV、输出电流最大为5 A、开关频率是350-580 kHz和最高功率因数为0.991。系统包含了有源桥式整流器、两相交错式PFC、半桥LCC;采用氮化镓器件的次级侧同步整流、恒压/恒流的反馈控制和辅助电源。

氮化镓技术给无刷电机驱动器带来的优势

永磁电机(也称为无刷直流电机)目前被广泛采用。与其他电机相比,它具有更高的每立方英寸扭矩性能和更高的动态性能。到目前为止,硅基功率器件在逆变器电子中一直占主导地位,但其性能已接近理论极限。市场需要越来越高的功率密度,要实现这个目标,电机需要更高的开关频率和非常小的死区时间。氮化镓场效应晶体管和集成电路具有满足这些需求的最佳属性。

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IEEE Nuclear & Space Radiation Effects Conference

2022年7月18日星期一 - 2022年7月22日星期五
IEEE Nuclear & Space Radiation Effects Conference
地点: Provo, UT

Radiation Results for Modern GaN-on-Si Power Transistors Presenters: Robert Strittmatter, B. Sun, S. Zhang, Max Zafrani, Alex Lidow

Booth 606

GaN-on-Si power transistors launched in 2021 and early 2022 specifically designed for high radiation resistance and low dynamic on-resistance are characterized for single event and dynamic on-resistance, demonstrating improvement over all prior generation GaN-on-Si devices.

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ESSDERC – ESSCIRC 2022

2022年9月19日星期一 - 2022年9月22日星期四
ESSDERC – ESSCIRC 2022
地点: Milan, Italy

Gallium Nitride in Power Electronics converters. Motor drive, DC-DC, and Lidar Speaker: Marco Palma, Director of Motor Drive Systems and Applications

GaN devices, such as discrete GaN FETs and integrated circuits entirely made of GaN technology, are widely being adopted across different applications and are becoming well recognized in the power electronics industry. In the workshop, the basics of the GaN technology will be presented, to share basic knowledge and to depict the main difference vs. MOSFET technology. During the talks in the workshop, the GaN approach and its related advantages will be presented for dc-dc converters, motors, and Lidar systems.

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Automotive LIDAR 2022

2022年9月20日星期二 - 2022年9月22日星期四
Automotive LIDAR 2022
地点: Online

Automotive LIDAR 2022 5th Annual Conference and Exhibition

LIDAR has been in use for over 60 years in military, aerospace, robotics, and meteorological fields. Today it is experiencing a flurry of interest due to the expectation that it will be one of the key sensors to enable autonomous driving. With more than $5.6 billion raised to date, more than 95 companies are developing automotive grade LIDAR sensors using their unique approaches. This conference is the only event in the world exclusively focused on automotive LIDAR technologies and applications.

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