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The World’s smallest and most efficient computing and gaming PSU using Vertical GaN technology

Leveraging NexGen’s Vertical GaN™ technology, the NexSys 240W provides the industry’s highest power density, enabling >15% smaller and >30% lighter size than typical power supplies and cutting power losses by >30%. The NC240S AC-DC adapter is designed to power laptop and notebook-type computers with a universal AC input range of 90-264 VAC and 240 W of output power at 20 VDC (maximum current 12 A).

The most remarkable aspect of Vertical GaN (Gallium Nitride) technology is the power density it enables; this PSU is just 3.8” x 3.8” x 1.0” and weighs 363 g, excluding the AC cable. With a target of 92-94% power efficiency and full protections for over-voltage, over-current, over-temperature, and short-circuit, the NexSys 240W meets universal energy and safety certifications and specifications.

For those who are interested, NexGen achieves these unparalleled size, efficiency, and power density benchmarks by using the World’s first GaN-on-GaN power semiconductor, NexGen Vertical GaN™. I’ve included a link to a page that explains this technology in the comments, but in short: “NexGen Vertical GaN™ devices can leverage the 3D architecture for increasing current by growing in X and Y dimensions and increasing voltage by growing thicker EPI layers. This allows for a reliable, robust, and scalable architecture to make the perfect high voltage and high current power semiconductor.”

While NexGen has a limited product range at the moment, it is clear from what they do have that there is great potential in their technology, and I would like to see what comes from them next; it could drastically change how we think about power supply design. For example, NexGen also makes the Helios 20W LED Power Module for sleeker, smarter, and higher-performance indoor and outdoor lighting applications. Still using their Vertical GaN technology, it, too, is very small and light (2.09” x 1.26” x 1.0”, 363 g) – that’s nearly a third the size of the Traco Power board I previously wrote about, power and application notwithstanding. Let us know if you want samples of this product as well!

If you require power supplies for your end products, especially for consumer goods, I would highly recommend getting a sample and seeing how you get on with it. Just imagine if this technology had been used in some of the early Xboxes that had huge power supplies!

Keep designing!

(All images sourced from NexGen)

NexGen NexSys 240W NC240S AC-DC Adapter Sample

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