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Hi folks, i have been testing dragon's circuit, that he shared on a couple threads already.
I do realize it is a well known circuit, Bedini and all, though it is working very well.
I have been swapping the 12 volt batteries manually for the moment, whenever the charge battery reaches about 13.5 volts.
At the same time, my secondary coil is powering a feit, 3.6 watt filament, gutted led bulb, at very good brightness.
While at the same time, a diode off the transistor collector is charging the charge battery.
My circuit is using around 4.8 watts.
Quote from Dragon:
Here is Dragons circuit:
And here is my version, without switches to swap batteries yet.
I do realize it is a well known circuit, Bedini and all, though it is working very well.
I have been swapping the 12 volt batteries manually for the moment, whenever the charge battery reaches about 13.5 volts.
At the same time, my secondary coil is powering a feit, 3.6 watt filament, gutted led bulb, at very good brightness.
While at the same time, a diode off the transistor collector is charging the charge battery.
My circuit is using around 4.8 watts.
Quote from Dragon:
While waiting for the MPPT, a past project has been resurrected. To be honest it was never thought to be anything more than a novelty for extending the run time of JT circuits. It appears I was being a bit short sited...
Over the last couple days it's shown me that it might be possible to bring it up into a power level that would provide a useful output, although, as the output power goes up so do the challenges. However, it does meet the criteria of my end goal.
The picture shows a small Hartley circuit driving a 120v 3watt LED bulb utilizing a switch circuit to drain one bank and charge the next - when one bank is charged it can be switched back to reverse the process. I had never done any real measuring of the circuit - simply running it for days on end to see how long it would last...
To my surprise it was returning 74% of the energy... really close to my 80% acceptable range. So to put that into perspective if you were running a 10ah load, 7.5 ah is being returned, effectively running a 10 amp load with only a 2.5 amp loss. So I'm thinking if I can simply toss a project like this together with little thought with this much return I should be able to surpass the 80% with a little thought.
The circuit diagram is one that I've shared over the years, most recently in Mikey's thread, so once again I'll bring it to light with a little different perspective...
It also lines up with the thoughts that both batteries should be the same capacity and voltage where the difference in potential is relatively low for the highest efficiency in transferring energy between the batteries. There are a few flaws with it as is but the basics are all there....
Over the last couple days it's shown me that it might be possible to bring it up into a power level that would provide a useful output, although, as the output power goes up so do the challenges. However, it does meet the criteria of my end goal.
The picture shows a small Hartley circuit driving a 120v 3watt LED bulb utilizing a switch circuit to drain one bank and charge the next - when one bank is charged it can be switched back to reverse the process. I had never done any real measuring of the circuit - simply running it for days on end to see how long it would last...
To my surprise it was returning 74% of the energy... really close to my 80% acceptable range. So to put that into perspective if you were running a 10ah load, 7.5 ah is being returned, effectively running a 10 amp load with only a 2.5 amp loss. So I'm thinking if I can simply toss a project like this together with little thought with this much return I should be able to surpass the 80% with a little thought.
The circuit diagram is one that I've shared over the years, most recently in Mikey's thread, so once again I'll bring it to light with a little different perspective...
It also lines up with the thoughts that both batteries should be the same capacity and voltage where the difference in potential is relatively low for the highest efficiency in transferring energy between the batteries. There are a few flaws with it as is but the basics are all there....
And here is my version, without switches to swap batteries yet.
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