Was BSing with a friend who has a hobby farm and uses electric fences for his livestock. Got to thinking about if it was possible to do any sort of energy harvesting from the fence since "electricity" is running throughout his property. My (not very) educated guess is that there isn't enough energy there to be worth the effort.
The way I see it, under ideal conditions, you could probably expect to see a 16kV pulse for 100us. Worse than that, the pulse generally decays linearly (from 16kV down to 0V over 10ous), so a safer assumption would be ~8kV for 100us. Doesn't seem very promising.
My conundrum comes in from the P(W) = E(J)/ t(s) equation. I think these units are generally about 1 Joule output, so if I substitute in 1 joule for 100us, I get 10kW, which seems a little extreme. Even if I extend that out and say that a 1J pulse occurs once a second. that comes out to be 1W. Is that really how much energy is on the line in ideal situations?
That DOES seem very promising, but I think I am missing something important here.....
The way I see it, under ideal conditions, you could probably expect to see a 16kV pulse for 100us. Worse than that, the pulse generally decays linearly (from 16kV down to 0V over 10ous), so a safer assumption would be ~8kV for 100us. Doesn't seem very promising.
My conundrum comes in from the P(W) = E(J)/ t(s) equation. I think these units are generally about 1 Joule output, so if I substitute in 1 joule for 100us, I get 10kW, which seems a little extreme. Even if I extend that out and say that a 1J pulse occurs once a second. that comes out to be 1W. Is that really how much energy is on the line in ideal situations?
That DOES seem very promising, but I think I am missing something important here.....