STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[teslaalset]

Thanks for the link. It is my understanding that per cycle the energy that characterizes those losses is only given by the area enclosed within the hysteresis curve. In any event, like I said, those losses would give an even greater OU effect if included in the energy balance discussed here.

I had a look at your latest excel results.
One crucial thing about your method of calculating P=V*I is that you have to take the absolute values,
If V or I is negative you can't use a negative value, because that leads to negative Power results.

Using absolute values leads to below result. Much more realistic.

[Omnibus]

You know, that was a question I had from the very beginning. One thing is for sure, the Joule heating has to be always positive (it is anyway because I is squared). As for the other energy we should be careful about the physical meaning. Negative energy is returning energy to the power supply. If there is such and you take it with its absolute value then in cases where per cycle there would be no net energy (say all energy put in comes back as in the cases of an inductor) then you would incorrectly assess the output energy instead of being zero being double the calculated value. Thus, it seems to me one should put it in the energy balance equation as what it really is and not always consider it only positive.

[teslaalset]

You know, that was a question I had from the very beginning. One thing is for sure, the Joule heating has to be always positive (it is anyway because I is squared). As for the other energy we should be careful about the physical meaning. Negative energy is returning energy to the power supply. If there is such and you take it with its absolute value then in cases where per cycle there would be no net energy (say all energy put in comes back as in the cases of an inductor) then you would incorrectly assess the output energy instead of being zero being double the calculated value. Thus, it seems to me one should put it in the energy balance equation as what it really is and not always consider it only positive.

I agree with you on this.
The sign of the power can be negative if it's generated power.

[Omnibus]

Case in point. See the 170kHz run for a sine wave. That seems to be the ultimate OU machine if energy balance is calculated right because you drive it only to obtain energy without spending any. All electrical energy is returned back to the supply and in addition you get Joule heat.

[Omnibus]

Here are the Excel data for the above: