[sdiy] Harmonic effect of rectification

[Tom Wiltshire]

On 20 Apr 2012, at 11:56, Neil Johnson wrote:

> Hi Tom,
> 
> (to list this time!)
> 
>> What's the harmonic effect of rectification? Has this been studied anywhere?
> 
> http://www.rfcafe.com/references/electrical/periodic-series.htm
> 
> Just apply the Fourier transform and some undergrad maths.
> 
> Neil

I can apply the fourier transform to the output for a particular case and find out what it did to X or Y wave, but that doesn't help me know what will happen when I feed in Z wave. Given that sometimes it just changes the overall frequency and leaves the harmonic structure alone, sometimes leaves the frequency alone and changes the harmonic structure, and sometimes changes both, it doesn't seem straightforward to predict what will happen.

But hang on a minute...I think I've got it...Rectification is an example of a waveshaping function, and the required theory is all worked out for waveshaping. Ok, sorry to have bothered you.

Tom