Imhotep Oscillator Fan/Lite--Pulse charging

[MattBlytheTheOne]

have you thought about stepping up the voltage to the charging capacitor?

[MattBlytheTheOne]

Obviously if you hang a battery in your solar powered circuit, it will charge providing it does not impare the operation of the circuit! If you connect the solar panel directly to your battery +ve to +ve it will still charge if the battery is up to it.

[Drevtoobe]

Here is a real meat and potatoes way for you to understand the cap pulse circuit: Take a very small cap, say 10 uF, and charge it up to 9 volts. Don't charge it to 12 volts because that's too painful.

Take the cap that's charged to 9 volts and put the leads across your tongue and feel the cap voltage decrease as it discharges across your tongue. Repeat the experiment with smaller and larger capacitors, but don't charge them past 9 volts.

[Drevtoobe]

This may sound ridiculous at first but in fact it is not. You will see how larger capacitors take longer to discharge, which gives you a sense for how larger caps store more charge, and have a longer 'time constant' when discharging across the resistance of your tongue.

"Resistance of your tongue?", you say? Sure, why not, take your multimeter set to ohms measurement and put the leads on your tongue, then measure your body resistance from left hand to right hand.

[Drevtoobe]

Silliness aside, you now can envision the charged capacitor pulsing current into the battery and dropping down to the battery voltage because you now know what it feels like when a cap does the same thing across your tongue.

Standard disclaimers, don't charge your HV cap to 300 volts and put your tongue across that and then try to sue me!

Seriously, you now have a tangible sense of how a cap discharges. A cap is _EXACTLY_ like a pressurized air tank here. Have fun and don't burn your tongue!

[MattBlytheTheOne]

larger capacitors only take longer to discharge if there is resistance! Try hanging a piece of coppper wire across the cap you will see it discharge very quickly!

[dodoshlodo]

GReat work Lidmotor, interesting to see u combine these 2 projects together

with your pulse charging circuit i dont understand why u have the magnet and i think i saw a reed relay there to time the pulses. u also mentioned a 555 timer circuit to time the pulses.

Cant this be done with just the 555 timing circuit to switch a normal relay?

[Lidmotor]

This video was just to show the principle of the cap pulser idea. The little spinning magnet triggers the magnetic sensitive reed switch to turn on the circuit and put the pulse of energy into the charging battery. The 555 timer circuit with a relay has been done by Bodkins at the Energetic Forum and does work quite well. I would have used it if I'd had it on hand. The circuit we are working on now has no moving parts and makes no noise.

[marthale7]

I have found that direct charging to the battery has been more effective than the circuits I have tried. The advantage of the Bedini cicuits is they clean up the sulfation inside. But after they are clean I typically just go for a direct charge. I will be interested if you do load test on the batteries if your system turns out better.

[Lidmotor]

I think that you are probably right. We will have to see how this turns out. It is something new and different for me to try out.

[marthale7]

The more I think about it, perhaps your system needs a cap on the other side of the cap that builds up. So, like a sponge can hold that voltage over the battery till the battery will accept it...

[Lidmotor]

Something new to try tomorrow. Pretty soon I'm going to have sponges for the sponges. Nothing is going to get away. lol

[Drevtoobe]

It won't work, there is no point to putting a cap on the charging battery side. Think about it, and if you are curious sometime later I will give you an air tank explanation.

[Lidmotor]

You are right. That will not work. That extra cap on the charge battery side would just sit at the battery voltage and do nothing. This whole cap pulser idea (the more I study it) is a very tricky thing to get right. The pulse width, discharge time, and voltage have to be right or it won't do anything but eat energy. I'm not sold on it yet.

[Drevtoobe]

You got it exactly. Any cap across the battery is effectively locked to the battery voltage. From the pulsing cap's perspective, the battery looks almost like a short circuit.  When people think 'short circuit' they think of a short to ground. You can just as easily have a short circuit to +12.6 volts. The pulsing cap will discharge very quickly to 12.6 volts, akin to a very small cap across the tongue where you feel the briefest 'puff' of voltage. You get two Brownie Points.

[Drevtoobe]

Your points are very thoughtful. The other thing to consider is that there is a finite energy flow into the charging battery. So even if you massage it with pulsing caps or discharging coils, you are still limited to the number of watts of available charging power. Back to our friend the pie. The best you can hope for is to maximize the effeciency of the charging power to get the most possible energy transfer into the charging battery.

[Lidmotor]

These project are all about making something work better. Enjoying the pie to the fullest!! lol -- And of course it is fun and I learn something along the way.