Looking at your curve, Peter, it appears that at 2.81 V the curve is quite steep. Thus, I do not understand how the device could run at this voltage for a week (as he says) if there was any load, which there is -- can you explain? the only way it would stay at 2.81 is for no current to be drawn, he is on a part of the curve that is very rapidly movable, he must be generating exactly the same power he is using for it not to change by 1mV, i find this hard to swallow, he is balancing on a tightrope without a professed wobble, the question remains what was his starting voltage? If it stayed between 3.2-3.3 Volts i would be more inclined to believe it, you have the ability up here to be using power without moving the voltage around, to put it in another way, in his current operating mode he should be able to disconnect the battery totally and it should still run the same maybe with a small cap. Now if his starting voltage was 3.3V then he would have run out of power by now if he was on 2.81 yesterday, I am expecting bad news from him maybe it's too late for him to save face. EDIT There is the possibility that the device prefers 2.81 Volts, maybe below this voltage it generates more power and above it generates less and therefore has found a balancing point, it could be a point where the battery impedance is such to cause this. DOUBLE EDIT I see Janost is reading here now, that's good thanks Itsu. If you want an account here pm me at Peterae 'at' overunityresearch.com Yes i understand now the starter is being run at low power and therefore the bi-metal strip is not operating. Can you please state your battery start voltage so we can clear that up, any chance of scoped waveforms. It's a fun circuit, thanks for sharing with everyone.
« Last Edit: 2012-07-29, 11:29:58 by Peterae »
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