2021-09-12

[public] 304K views, 14.2K likes, dislikes audio only

GreatScott!

Altium Designer: https://altium.com/yt/greatscott!

WARNING!: Do not replicate the experiment showcased in the video!

Previous video: /youtube/video/ZswJoAvbuzY

How Does Wireless Charging Work? video: /youtube/video/ExU32UyGX6w

DIY Wireless Energy Transfer System video: /youtube/video/3E5PUnYlaTM

Facebook: https://www.facebook.com/greatscottlab

Twitter: https://twitter.com/GreatScottLab

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

More project information (schematic, code,.....) on Patreon: https://www.patreon.com/posts/55620062

Parts list (affiliate links):

Arduino Nano: https://s.click.aliexpress.com/e/_dULoNXh

https://amzn.to/3zACpM1

5V regulator: https://s.click.aliexpress.com/e/_dXSrfiP

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Capacitors: https://s.click.aliexpress.com/e/_d7dOwRz

https://s.click.aliexpress.com/e/_dU4FEsB

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Resistors: https://s.click.aliexpress.com/e/_dTPpXjt

https://amzn.to/2Y6MEtu

OLED screen: https://s.click.aliexpress.com/e/_APw28Y

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Potentiometer: https://s.click.aliexpress.com/e/_dX83GAF

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MUR460 Diode: https://s.click.aliexpress.com/e/_ArPcS4

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IR2184 MOSFET Driver: https://s.click.aliexpress.com/e/_9HCy28

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IRF740 MOSFET: https://s.click.aliexpress.com/e/_9yefJK

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Websites which were shown in the video:

https://news.mit.edu/2007/wireless-0607

https://archive.eetindia.co.in/www.eetindia.co.in/ART_8800467843_1800008_NT_4ba623b8.HTM

https://www.we-online.com/catalog/datasheet/760308100110.pdf

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