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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: The problem with big, honking filter capacitors posted by Al Sekela on May 12, 2008 at 13:49:08:
In a power amp, the inductance of the wires that connect the filter caps to the output device collectors/drains is much greater than that of the filter caps themselves. An exception would be if the caps are of the snap-in type that mount on the same board as the output devices. Local bypass capacitors of around 100uF, physically close to the output device collectors/drains give a low-inductance path to ground in this application and eliminate the problem. Marshall Leach's page on power supply bypassing describes an interesting thing that happens when these have a value that's too small.
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- RE: The problem with big, honking filter capacitors - andy_c 05/12/0814:07:58 05/12/08 (0)
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