2021-12-12

[public] 146K views, 6.90K likes, dislikes audio only

GreatScott!

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LCR Meter: https://www.elektor.com/elektor-2-mhz-lcr-meter-kit?utm_source=greatscott&utm_medium=link&utm_campaign=GS-LCR-12-21

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

Previous video: /youtube/video/0P4R91hsMf0

Previous Wireless Power video: /youtube/video/15HmW1K8MZY

Impedance video: /youtube/video/W2VwAL7-8-o

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In this video we will be having a closer look at my wireless power coils in order to optimize them. That means I will show you exactly how to measure the most important characteristics of any coil and how to turn these values into the coil quality which I should keep as big as possible for my wireless power transmission. Along the way we will learn about LCR meters, how coils act at higher frequencies and ultimately (maybe) create my best wireless power coil so far. Let's get started!

Websites which were shown/used in the video:

https://www.tek.com/document/application-note/capacitance-and-inductance-measurements-using-oscilloscope-and-function-ge

https://www.hioki.com/global/learning/usage/lcr-meters_1.html

https://www.electronics-notes.com/articles/test-methods/lcr-meter-bridge/primer-basics.php

https://www.datatec.de/media/pdf/7c/4e/21/Keysight_Impedance-Measurement-Handbook-5950-3000.pdf

https://meettechniek.info/passive/inductance.html

Thanks to Elektor for sponsoring this video!

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0:00 We need the Coil Quality!

1:22 Intro

2:08 High Frequency Inductor Problem

3:55 Real Coil Explained (LCR)

5:00 DIY Coil Measurements

7:33 DIY Coil Quality Analysis & New Test

8:21 New Litz Wire Coil

9:45 Final Test & Verdict