On 12/04/2016 04:34 PM, jimlux wrote:
Even for time-nuts, I suspect we're not looking to eke out the last percent of efficiency from 96% to 97%, or handle wildly varying loads, etc. Nor are we usually looking for absolute minimum parts cost.
The little OCXO I used for testing goes from about 850ma cold to 200ma hot (at 5V) and I noticed a very different appearance of the spectrum as the current dropped -- at high current, the switching spurs were quite narrow, but as the current dropped (and particularly below some threshold I don't remember) the spurs widened out quite a bit.
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