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Old 03-27-2009, 10:04 PM   #685 (permalink)
blazoner
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Quote:
Originally Posted by NiHaoMike View Post
To reduce noise at low switching frequencies, could the clock be modulated to spread the spectrum and avoid concentrating power at any one particular frequency?
I'd have to guess that this would be pretty taxing on the system.

As an alternative, how about a driver (speaker) that sends out the offending frequency, but offset by 1/2 the wavelength? That's the basic concept behind noise canceling technology, and possibly easy to implement in this scenario.


Robert
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