An interesting thing about filtering is that brushed DC motors shed particles of the carbon contacts as they wear down. If the filter isn't after the motor, it won't catch these. I don't know how many use brushless DC motors these days.
An interesting thing about filtering is that brushed DC motors shed particles of the carbon contacts as they wear down. If the filter isn't *after* the motor, it won't catch these. I don't know how many use brushless DC motors these days.
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