[sdiy] Low Frequency Square to Sine Waveshaper

[Neil Johnson]

On 26 May 2008, at 18:59, ASSI wrote:
> On Montag 26 Mai 2008, Neil Johnson wrote:
>>> http://electronicdesign.com/Articles/Index.cfm?ArticleID=6293
>>
>> Ah yes, Walsh functions.
>
> But only the boring subset of Rademacher functions is used in this
> circuit.  Could be easily extended to use Walsh functions by adding a
> couple more 4030 and resistors, though.

Indeed but the resulting circuit would be twice the size and not such  
a 'neat' idea for publication ;)

Adding a second 4030 would get you a further 4 terms, 13 in total,  
which could make some more interesting waveforms.

Neil
--
http://www.njohnson.co.uk