USB-C Chargers Just Got Amazing: Meet GaNFast Charging
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USB-C chargers just got smaller, and more efficient, thanks to Navitas Semiconductor‘s revolutionary and bleeding-edge technology: GaNFast. It’s not available tomorrow. You can buy it right now from Amazon or other online retailers.

The acronym/portmanteau “GaN-Fast” stands for two things: the first part, “GaN” stands for gallium nitride, which is a semiconductor or a material that falls somewhere between a conductor and an insulator. Generally speaking, materials that can conduct and resist with minimal waste heat production make for ideal transistors in power supplies and chargers. That’s in theory. In reality, Navitas’s implementation of GaNFast reduces power consumption by a whopping 40% over the current generation of silicon transistors.

Photograph of the GaNFast Integrated Circuit

The “Fast” part refers to its compatibility with Qualcomm’s Quick Charge 4.0 specification, which allows for faster charging. GaNFast also works with the non-proprietary Power Delivery specification, which is common among USB Type-C equipped laptops and some smartphones. (Chargers shouldn’t output Power Delivery and Quick Charge The Best USB-C Chargers: What's Safe and What's Dangerous? The Best USB-C Chargers: What's Safe and What's Dangerous? What are the best USB-C chargers? Benson Leung and Nathan-K's roundup of the best chargers on today's market can be complex to read. Fortunately, we've simplified it for you! Read More over the same port, since this can cause a potentially device breaking power output).

Anker’s Atom PD 1 USB-C Charger (27-Watt)

Photograph of the products currently using GaNFast Technology

For example, Anker’s PD 1 27-watt USB-C charger packs 27-watts of charging output into a a cube that’s about 1.6 x 1.8 x 1.5-inches. It’s 40% smaller than the stock Apple charger that outputs a similar amount of energy. The charger isn’t yet available for purchase although it will arrive very soon.

Anker did tease the impending release of two other chargers, including a dual USB-C charger and a dual USB-A (the older standard) combined with a dual USB-C charger.

USB-C Chargers Just Got Amazing: Meet GaNFast Charging anker atom pd 1 ces 2019 604x500

Innergie GaNFast USB-C Charger (65-watt)

Innergie USB C Charger, 60W US Laptop Adapter, for MacBook 12"/ MacBook Pro/MacBook Air 2018/ iPad Pro 2018, Supports USB PD, World's Smallest USB-C Power Adapter with Foldable Plugs [60C] Innergie USB C Charger, 60W US Laptop Adapter, for MacBook 12"/ MacBook Pro/MacBook Air 2018/ iPad Pro 2018, Supports USB PD, World's Smallest USB-C Power Adapter with Foldable Plugs [60C] Buy Now On Amazon $109.00

The highest wattage USB-C charger with GaNFast technology is the Innergie 60C with GaNFast. Out of the three companies with GaNFast chargers on the market, Innergie’s pedigree is the strongest.

The powerhouse designer behind Innergie is Delta Electronics Group which makes power supplies for most of today’s laptop manufacturers. If Delta makes a power supply, it almost certainly meets the standards set by USB-IF.

RAVPower GaN USB-C Charger (45-watt)

USB Wall Charger [GaN Tech], RAVPower 45W PD USB-C Charger Type-C Power Delivery Adapter, Ultra-Compact Compatible with iPhone 11/ Pro/Max, MacBook, Dell Xps 15 13, iPad Pro 2018 and More(White) USB Wall Charger [GaN Tech], RAVPower 45W PD USB-C Charger Type-C Power Delivery Adapter, Ultra-Compact Compatible with iPhone 11/ Pro/Max, MacBook, Dell Xps 15 13, iPad Pro 2018 and More(White) Buy Now On Amazon $29.99

RAVPower also produces a USB-C charger based on GaNFast technology. Instead of packing Navitas’ circuitry into a cube-shaped USB-C charger, RAVPower chose to use a thinner profile at 15mm thick. It provides 45-watts of power, similar to the Innergie 55cc USB-C charger and Navitas’ Mu One charger.

USB-C Chargers Just Got Amazing: Meet GaNFast Charging ravpower usb c charger ces2019 01 670x413

It’s among the thinnest chargers out there, although because it integrates the electrical prongs into the body of the charger, it makes it difficult plugging it into overloaded surge protectors.

Future of USB Type-C Chargers?

Gallium nitride stands a chance of replacing silicon in transistors. There is another technology known as silicon carbide which offers similar characteristics as GaN transistors. However, it is not available yet in consumer applications.

Photograph of interative GaNFast designs

The difference between the two technologies is that GaN is here now. In the short term, GaN technology offers manufacturers  a way to produce power supplies that are smaller, more efficient, and less prone to overheating. But power supplies (and transistors) are found in all modern electronics. GaN may just revolutionize our devices, particularly the larger power supplies found in desktop computers and laptop charging bricks.

Explore more about: CES, USB.

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  1. lon3volf
    January 16, 2019 at 4:17 am

    Could you guys review ZMI 45W USB C PD Wall Charger?

    • Kannon Yamada
      January 16, 2019 at 7:11 am

      I looked at the specs and you should not buy it. According to the Amazon description, it outputs Power Delivery and Quick Charge over the same USB-C port, which means it breaks the USB-C PD specification.

      I would advise looking for he USB-IF certification on the charger, in case you are uncertain whether or not a charger is worth buying.

  2. Adrian
    January 12, 2019 at 8:55 pm

    Hopefully this will kick off manufacturers making chargers and power banks with multiple USB Type C PD ports, I've been in need of a 60w triple type c charger for the last three years, now I need one capable of sharing 220w over the three ports. Might as well round it up to 250w with a couple of USB 2 ports as well.

    • Mike Walsh
      January 13, 2019 at 11:45 am

      I thought silicon carbide was used in knife-sharpening blocks??? (*lol*)

      • Kannon Yamada
        January 14, 2019 at 9:35 pm

        I think it's silicon carbide MOSFETs that are being used. Silicon carbide is a super versatile material.

    • Kannon Yamada
      January 14, 2019 at 9:41 pm

      The material (GaN) is already starting to push its way into consumer products so it won't be along until there are 3 USB-C devices out there. Maybe in a year. But 200-watts is a lot. A silicon-transistor 200-watt brick is literally brick-sized and heavy. A GaN-based supply may be significantly smaller but I don't imagine that's going to be available anytime soon. It sounds like a industrial device.