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Note: Tested in real life using a electric motor as load. Batteries NiMH, rechargeable. Test was successful, batteries were (partially) recharged through the load. The load used and it's efficiency does matter, as waste heat is not recovered by the process.
Credit to youtuber "what if I did this" who explores alt-energy on his channel. I put these circuits together to try to get a better idea of what is going on in his "Tesla power transfer" videos he made.
Two Notes: 1) All the LED's are rated at 2V. 2) The 1uOhm resistors are added to the left circuit not because they are necessary, but because this app applies a "Voltage is shorted" message and stops the simulation if a Voltage source is connected without a load.
Left circuit - 20mA being drained from 3V battery, while 20mA being distributed to 3 1V batteries (6.67 X 3 = 20mA)...keep in mind the unnecessary resistors (6.67 X 3 actually = 20.01mA)
Right top circuit - 20mA being drained from 2V battery lighting LED but not powering any more batteries. Conventional.
Right bottom circuit - a 50ohm resister is needed to dissipate the remaining current from the extra 1V left over else the LED will blow. Essentially a waste of energy. Flip the switch to watch the LED light instead of blow.
In left circuit, batteries are purposely positive side to positive rail with the idea of relying on potential from the 3V to the 1V batteries in parallel. The voltage drop of 2V leaves 1V to recharge each of the 1V batteries in parallel.
One of the points of all this, as far as I can tell, is the recycling of energy. Yes, there will be eventual losses in the wires over time but a good deal of the energy is conserved as the LED load in the left circuit is merely a conduit for energy, rather than a consumer of it.
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