High voltage low current combined with LV HC

[skaght]

A number of people have suggested that you can mix a low voltage high current source and a high voltage low current source to multiply the power available in a circuit. I built a circuit using an SCR with a 12 volt charged cap (25 uF ceramic) and a 600 volt charged cap (100 pF ceramic) and dumped them both through the SCR into a battery at a 40 Hz repetition rate. This should combine a low voltage, higher amp source (25 uF cap) with a high voltage low current source (100 pF) cap.

In order to prevent latchup on the SCR I'm limited on how large a capacitor I can use. In addition, I wanted to use non-electrolytic caps since electrolytics are not that good with quick discharges.

A nickel metal hydride battery didn't increase much when connected (1.280 to 1.284), yet an alkaline battery jumped from 1.440 to 1.484. Not overly impressive, but it's what I've seen so far with the setup. I'm playing around with charging the alkaline longer to see if it increases and holds the charge.

Any thoughts on experiments with this kind of setup?

[sucahyo]

Not exactly mixing but I found mixing radiant with normal electricity will improve battery reception to charging.

I believe combining directly the output of radiant charger with normal charger will produce a mix of low voltage high current and high voltage low current.

[skaght]

That's an interesting idea. Dumping the two differently charged capacitors into a battery didn't seem to work well as the small alkaline battery didn't continue to charge. I'm curious about the whole concept however and will continue to think on other ways to combine it with conventional charging. Thanks for your thoughts!

[Slider2732]

I used to do that to close the loop on pulse motors...didn't know any different
You send a regular charge voltage for the battery, say 7.5V to a 6V battery and include the coil energies (BEMF) with it. Many a deadened and non chargeable cell has returned to life like that.
Just have to watch the power supply isn't enabling the battery to draw what it shouldn't...1A into a 100mAh rechargeable Ni-MH is never too good an idea.
The battery, by being fed by the power in, also supplies power out, with having no diode in the return line.
Works well with supercaps too.
So, whether it is a correct thing to do or not, i've had a lot of success with that method too.

[sucahyo]

Dumping the two differently charged capacitors into a battery didn't seem to work well as the small alkaline battery didn't continue to charge.

I don't think dumping cap would have the same effect as dumping coil charge.

I make a couple of alkaline poofing with 1 Amp input with coil dumpingin 5 hours. What is your circuit input? How fast the charging happen?