video thumbnail 10:47
DIY Plasma Arc Speaker

2018-08-12

[public] 266K views, 7.90K likes, dislikes audio only

channel thumbGreatScott!

Prototype PCB for $2 (100*100mm): https://www.jlcpcb.com

Previous video: /youtube/video/cJ_vDA7xsGs

Transformer as a Speaker video: /youtube/video/cz3DEP2LC_w

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

Twitter: https://twitter.com/GreatScottLab

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

You can find the schematic for the circuit here: https://www.patreon.com/posts/20710056

Websites which were shown in the video:

http://www.ti.com/lit/ds/symlink/tl494.pdf

http://www.hrdiemen.com/reparation/flyback/scheme/7474

In this project I will show you how to create a plasma arc that can playback music. Along the way we will learn a bit about ignition coils, flyback transformers and the TL494 PWM IC. Let's get started!

Thanks to JLCPCB for sponsoring this video

Visit https://jlcpcb.com to get professional PCBs for low prices

Music:

2011 Lookalike by Bartlebeats

Killing Time, Kevin MacLeod

(incompetech.com)


test the ignition coil
/youtube/video/m-4sHRzexpQ?t=227.39999
added a capacitor in parallel to the primary
/youtube/video/m-4sHRzexpQ?t=260.79001
adding our music signal to the dead time control pin
/youtube/video/m-4sHRzexpQ?t=426.41901
lowering the carrier frequency of the system to around 400 hertz
/youtube/video/m-4sHRzexpQ?t=460.47
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/youtube/video/cJ_vDA7xsGs