[sdiy] fanning grounds vs. dirty/clean ground

Scott Gravenhorst music.maker at gte.net
Mon Aug 19 09:45:40 CEST 2002


media.nai at rcn.com wrote:
>At 11:54 AM +0200 08/19/02, René Schmitz wrote:
>>
>>A good design philosophy is to run as little current thru the GND.
>
>Taking that a step further, it's a good idea not to run unnecessary current
>anywhere.

Very important point.  As a tiny example, current spikey 555 timers... 
Replaced with CMOS 7555 timers reduce noise significantly without changing
anything about power or ground distribution.

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