In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Peter Van der Zee wrote:

Hi Mike;

I did some looking at Don's magic sinewaves several of years back, and as I recall, the precisions of the edge timings for this to work were rather excruciating. It could be handled by an SX with a fairly stable oscillator running at a good clip, but would not do well with SX/B. Absolute determinism is essential to get the residual distortion to the ideal low limits.

Now I suppose for a power inverter more distortion might be tolerable, but I believe this approach to be not for the faint of heart, and I suspect that judging by Curtis' post that his experience is not in line with the requirement of Don's approach. I think in this case a sine/table lookup method is much more appropriate.

Cheers,

Peter (pjv)

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