Events

EPC Tech Day

Tuesday, March 19, 2024
EPC Tech Day
Location: Taipei, Taiwan

GaN’s Tipping Point – Why GaN in AI Server?

In facing the transformation of energy efficiency, EPC and Power Electronics Lab of NTUST embrace the same vision of contributing to create a better world supported by extensive applications fuelled by gallium nitride-based power electronics technology.

Introduction - AI Server Demand Accelerates DC-DC and AC-DC Converter Development

Speaker: Josh Feng

Session 1: Exceeding 5kW/in3 in a high density 48V-12V DC-DC converter

Speaker: Michael de Rooij

Details of a 1kW reference design, with performance measurements, will be presented that covers device choice, transformer integration and over-coming testing challenges.

Session 2: Using a multi-level PFC topology to shrink the physical size while exceeding 99% efficiency in an AI PSU (power supply unit)

Speaker: Michael de Rooij

Multi-level PFC has proven to increase power density in high power server PSU without compromising efficiency. Details, including design and measurements, of a proof of concept converter will be given followed by design details of a 4.8 kW version. The synergy between AC-to-DC conversion leads to expansion of multi-level topology in motor drives and details of the benefits and approach will also be covered.

Session 3: High-density high voltage to low voltage isolated Conversion

Speaker: Michael de Rooij

The final section presents work on the isolation stage in the complete converter chain that meets the safety requirements between the grid and server. Two approaches will be covered; 1) a phase shift resonant bridge converter with active clamp and 2) a 4 cascade LLC converter with very high power density.

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9th Center for Innovative Integrated Electronic Systems Technology Forum

Thursday, March 21, 2024
9th Center for Innovative Integrated Electronic Systems Technology Forum
Location: Online

5,000 Watts/in3 Power Density in a 48-12 V Bi-directional DC-DC Converter for AI Servers Thursday, March 21, 2024 - 11:10 - 11:35 a.m. Japan Standard Time (JST)

Speaker & Live Q&A Session: Dr. Michael de Rooij

GaN devices increase the power density and efficiency, reduce system cost for the DC power systems used for high-density computing applications such as AI servers. GaN® FETs and ICs provide the fast switching, small size, and high efficiency needed to provide the highest power density solutions which is the ideal solution to address the growing power needs of artificial intelligence and to support the transition to 48 V input for the new high density and high efficiency servers required for these advanced computing applications.

Details of a 1kW reference design, with performance measurements, will be presented that covers GaN device performance, transformer integration and over-coming testing challenges.

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IPEMC (International Power Electronics and Motion Control) Conference – ECCE Asia

Friday, May 17, 2024 - Monday, May 20, 2024
IPEMC (International Power Electronics and Motion Control) Conference – ECCE Asia
Location: Chengdu, China

GaN Advantage over MOSFET in Inverters for Drones - An Experimental Comparison

Speaker: Marco Palma

Battery-powered UAVs are revolutionizing today’s agriculture, where they are used to spray fertilizers and more. These drones use motor drives that need to be lightweight and efficient to maximize working battery life and extend flight time between recharging. Wide-bandgap devices, and specifically Gallium Nitride (GaN) FETs, have been demonstrated to improve BLDC motor drives in e-mobility and robotic applications. This paper will present the characteristics of GaN FETs that reduce weight and improve the motor drive system efficiency.

Experimental tests were conducted on a GaN FET inverter and compared with an equivalent MOSFET inverter driving a permanent magnet motor used for unmanned Aerial Vehicle (UAV) agricultural drones. The most relevant figures of merit were characterized as a function of motor speed and power.

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PCIM Europe 2024

Tuesday, June 11, 2024 - Thursday, June 13, 2024
PCIM Europe 2024
Location: Nuremberg, Germany

Visit the GaN Experts at PCIM Europe 2024

Stop by Hall 9, Stand 318 at PCIM Europe to get the latest news on GaN technology, products, and applications. Schedule a meeting during PCIM to discuss your design by sending a request to [email protected]

EPC Presentations at PCIM Europe 2024:

Parallel Connection of GaN FETs in Low-Voltage Inverter Topology for Motor Drive Applications

PCB Only Thermal Management Techniques for eGAN® FETs in a Half-Bridge Configuration

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