Should you buy a GaN Power Adapter? Or is it a scam? || Testing GaN FETs!



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In this video we will be having a closer look at GaN FETs in order to find out whether they will improve power electronics products in the future. For that I got myself a commercial GaN power adapter which I will compare with a more traditional power adapter concerning their efficiency. Afterwards I will measure the resistance and switching speed of a proper GaN FET and finally use it in a buck converter circuit to demonstrate the difference to a normal MOSFET. Let’s get started!

Websites which were shown (used) during the video:
https://www.infineon.com/dgdl/Infineon-IPP60R199CP-DS-v02_03-en.pdf?fileId=db3a304412b407950112b42d8b484897
https://www.transphormusa.com/en/document/650v-cascode-gan-fet-tph3206psb/
https://www.transphormusa.com/en/document/recommended-external-circuitry-transphorm-gan-fets/
https://epc-co.com/epc/CEOInsights/FastJustGotFasterBlog/December2013.aspx
https://www.ti.com/power-management/gallium-nitride/overview.html
https://www.infineon.com/dgdl/Infineon-GalliumNitride_CoolGaN_emode_HEMTs-ProductSelectionGuide-v01_01-EN.pdf?fileId=5546d46266f85d6301670c286baf30a6
https://www.powerelectronics.com/technologies/gan-transistors/article/21863347/gan-basics-faqs

Thanks to the Keysight University Live for sponsoring this video.

Music:
2011 Lookalike by Bartlebeats

0:00 Introduction to GaN FETs (Power Adapters)
1:58 Intro
2:50 Testing the efficiency of a GaN Power Adapter and a traditional one
5:43 Selecting a proper GaN FET
6:08 Resistance Test (GaN FET VS MOSFET)
7:00 Switching Test (GaN FET VS MOSFET)
9:46 Buck Converter Test (GaN FET VS MOSFET)
10:42 Conclusion

source

37 thoughts on “Should you buy a GaN Power Adapter? Or is it a scam? || Testing GaN FETs!

  • March 21, 2021 at 5:15 pm
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    It’s really awesome that the chargers are now much smaller at same power.
    100w bricks aren’t that bulky anymore.
    That’s the main difference that gan tech makes.

    Reply
  • March 21, 2021 at 5:15 pm
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    We already have 93%-94% PSUs in our computers .
    overall topology and design is way more important. So at the moment bill of material budget can be better spent elsewhere than on a GaN.
    but yeah, i think we will get slightly better (consumer) electronics 3 or 5 years down the line.

    Reply
  • March 21, 2021 at 5:15 pm
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    Personally, I think it is hype to use this type of mosfet in a power plug. Especially for this price difference for the small percent in efficiency.
    250 – 800% more expensive!!
    The great advantage of GaN technology lies in more complex circuits for audio amplifiers, etc.

    Reply
  • March 21, 2021 at 5:15 pm
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    Good video. I dealt a little with gallium arsenide microwave transistors.

    And now, 20 years later, there are powerful switching transistors based on gallium nitride. We will consider them and apply them when they become a little cheaper. 🙂

    Reply
  • March 21, 2021 at 5:15 pm
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    I missed the important emphasis on the fact that if the whole world moves on to GaN MOSFET's, the power save will be huge, even if it's only a few percent and only in the products that actually use them of course. So, for one person it might not seem to make a big difference, but when talking about quantity, this is a great development worldwide on a bigger scale 🙂

    The downside will be that it implies that all the equipment in use today will have to be moved to electronic waste, these things cost power to produce, so in theory, I think it doesn't make much of a difference for at least 50 years. But after that it will start paying off.

    Reply
  • March 21, 2021 at 5:15 pm
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    Hol-up, you forgot to attempt taking off the "GaN FET" from the charger, and the MOSFET from the charger. I want to see you change them to the one you bought and see the improvement.

    Reply
  • March 21, 2021 at 5:15 pm
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    Nice information. But u have to also compare both at higher frequency, to see of there is any dynamic problems.

    Reply
  • March 21, 2021 at 5:15 pm
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    I didn't think switching components could get any better than they already were but I guess not.

    Reply
  • March 21, 2021 at 5:15 pm
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    it feels so good whenever I see your video
    you give a lot of knowledge
    I listen to all
    understands a little
    but in front of my friends
    I feel like I have learned a lot from your video

    staying creative and waiting for your video eagerly

    Reply
  • March 21, 2021 at 5:15 pm
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    11:13 What is this thing next to the multimeter on the left side? Is it socket with exposed live wires?

    Reply
  • March 21, 2021 at 5:15 pm
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    Great video! I was skeptical when I first saw GaN chargers. I didn't doubt the tech, just the companies that advertise using it. Glad to see this is something real and tangible for mass production unlike "X college students discover Y battery tech to charge an electric car in 2 seconds!!!!", However, it's still crazy to see your product was actually missing the component it needed. You should take a closer look, I'd love to see if they snuck a small one in for something useless, like driving an LED. Thanks for the info and your investigation!

    Reply
  • March 21, 2021 at 5:15 pm
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    I am loving your videos! Your videos are like games 99% are "99.99% CannOt pASs tHIS levEL!" And 1% are good worked ones. Keep it like this!

    Reply

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