How far can I Wirelessly Transfer Power? (Experiment) Better than at MIT?

Altium Designer: https://altium.com/yt/greatscott!
WARNING!: Do not replicate the experiment showcased in the video!
Previous video:    • Finally a good usage for Hoverboards!...  
How Does Wireless Charging Work? video:    • How Does Wireless Charging Work? || C...  
DIY Wireless Energy Transfer System video:    • DIY Wireless Energy Transfer System  

Facebook:   / greatscottlab  
Twitter:   / greatscottlab  
Support me for more videos: https://www.patreon.com/GreatScott?ty=h

More project information (schematic, code,.....) on Patreon:   / 55620062  
Parts list (affiliate links):
Arduino Nano: https://s.click.aliexpress.com/e/_dUL...
https://amzn.to/3zACpM1
5V regulator: https://s.click.aliexpress.com/e/_dXS...
https://amzn.to/2V3wDDt
Capacitors: https://s.click.aliexpress.com/e/_d7d...
https://s.click.aliexpress.com/e/_dU4...
https://amzn.to/3kBoHC4
https://amzn.to/3gQj4Pz
Resistors: https://s.click.aliexpress.com/e/_dTP...
https://amzn.to/2Y6MEtu
OLED screen: https://s.click.aliexpress.com/e/_APw28Y
https://amzn.to/3kKOMPg
Potentiometer: https://s.click.aliexpress.com/e/_dX8...
https://amzn.to/3mSJ1BF
MUR460 Diode: https://s.click.aliexpress.com/e/_ArPcS4
https://amzn.to/3yzbIpE
IR2184 MOSFET Driver: https://s.click.aliexpress.com/e/_9HCy28
https://amzn.to/3kMP7Bf
IRF740 MOSFET: https://s.click.aliexpress.com/e/_9yefJK
https://amzn.to/3BxqJdk

Websites which were shown in the video:
https://news.mit.edu/2007/wireless-0607
https://archive.eetindia.co.in/www.ee...
https://www.we-online.com/catalog/dat...

In this video I will be once again having a look at wireless power transmission. But this time it is all about distance and power because I wanted to find out whether I could achieve the same results as MIT back in 2007. They transmitted 60W of power with an efficiency of 40% over 2m. During my experiment I will tell you lots about good coil designs and power electronics which are required to achieve such results. Let's get started!

Thanks to Altium for sponsoring this video.

Music:
2011 Lookalike by Bartlebeats

0:00 MIT's wireless power results
1:49 Intro
2:25 Building the power electronics (half-bridge)
4:18 Coil design (diameter, windings)
5:54 Frequency selection for the coil design
7:14 Test 1 (windings)
8:50 Test 2 (diameter)
9:15 Test 3 (HF litz wire)
9:49 Final Test & Verdict