GaN Design, Electric Vehicles and More
Maurizio Di Paolo Emilio
Content Editor & Technical Writer | Ph.D in Physics | Power Electronics, Renewable Energy, Embedded Systems, Quantum Computing
Gallium Nitride (GaN) is a high-performance, wide-bandgap semiconductor regarded as the most promising and emerging power technology. GaN-based power devices have outperformed traditional silicon devices in terms of switching speed, thermal conductivity, and lower drain-to-source resistance (Rds). Gallium Nitride Field Effect Transistors (GaN FETs) are gaining popularity for power management and conversion in various applications ranging from high-power motor drives to fast charging adaptors, telecom, high-performance computing, and space applications. This article is a summary of a panel discussion, which was a part of the PowerUP EXPO, where experts from pioneering tech companies around the globe talked about the recent progress and future scope of GaN solutions.
GaN Half-Bridge Power IC Maximizes Performance, Cost Reduction
By Maurizio Di Paolo Emilio
Gallium nitride is a next-generation semiconductor technology with a large bandgap that has become critical in the development of sophisticated power electronics. It is up to 20× faster than silicon and can provide up to 3× the power or charge in half the size and weight of Si devices. Wise Integration’s WiseGan family of power devices includes the JEDEC-certified WI62120, a 650-V enhancement-mode GaN-on-Si integrated circuit.
Battery-Based Service for the EV Industry
By Saumitra Jagdale
Although the electric-vehicle market has been evolving slowly, it is predicted that by 2028, the EV industry will be worth $280 billion. Countries worldwide are gradually accepting that EV technology is the ultimate solution, whether it is a short-distance or a long-distance form of commutation. However, to achieve greater efficiency, it is very important to reduce high battery costs and come up with cheaper infrastructure and services for users for better sustainability of the EV sector.
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Laser-Driven Fusion Promotes Clean Energy
By Maurizio Di Paolo Emilio
There are two approaches to fusion: magnetic and inertial confinement, with different variations of each. Focused Energy’s approach is laser-driven inertial confinement.
“Livermore’s approach, on the other hand, is the so-called indirect drive,” said Ditmire. “This is an interesting approach, and Livermore will certainly be able to achieve greater gains in terms of fusion. Unfortunately, however, it is inefficient because you have to convert the lasers to X–rays first. So you lose about a factor of 10.”
The Physics of Earthquakes
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An earthquake is a series of ground oscillations caused by the sudden release of the energy accumulated in an underground area. These oscillations are due to the deformations of the rock caused by the seismic waves. This field of geology is linked by many concepts and physical laws, both regarding the propagation of vibrations and systems for measuring seismic events.