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Audio and Video Talk
Audio Visual Technology
Correct way to use HDMI?
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<blockquote data-quote="pwatts" data-source="post: 923824" data-attributes="member: 146"><p>The sparks are not static. It's the voltage difference due to two isolated power supplies not having the same concept of ground, and with AC-DC switching power supplies this difference can be large. If both devices share a common ground (or earth), then this should not happen but it's popular nowadays to use double insulation and float the units to prevent ground loops.</p></blockquote><p></p>
[QUOTE="pwatts, post: 923824, member: 146"] The sparks are not static. It's the voltage difference due to two isolated power supplies not having the same concept of ground, and with AC-DC switching power supplies this difference can be large. If both devices share a common ground (or earth), then this should not happen but it's popular nowadays to use double insulation and float the units to prevent ground loops. [/QUOTE]
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Audio and Video Talk
Audio Visual Technology
Correct way to use HDMI?
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