Bedini Capacitive Discharge Chargers

[vallentin]

There may be something to the spark but a mechanical switch has the lowest loss of any switch to my understanding. I have always had the best results with mechanical switches.

Then I will try an automotive lights relay. With a little adaptation to the cap pulser to drive it. I'll see what difference comes from this. Thanks for the ideea. Can't do it directly with the SG because the wheel is too little and has no use for the timing.

As for the solid state, do you have any ideea why it stops oscillating every time I connect a cap or battery? Can't start the self-oscillation otherwise. As soon as I have a load, nothing happens. I tried a range from 1-100K for the base resistor. Nothing!
I have a 50K pot in series with a 1K pot and a 10 ohm pot. For fine tuning. Without a load, oscillation starts at 3 Kohm.

[vallentin]

Scalar battery charger.

Hi guys.
Yesterday I tried the following:


A a simplified version of the Bedini scalar battery charger (first was a self latching configuration of the relay). Too lazy to hook it to the cap pulser at that time.

It does not work according to my schematic. The measured voltage on the load (small motor) terminals is around 6V, not to mention the battery running down...

Also driving the relay with the cap pulser made no difference except for changing the frequency. The caps (68uF/400V) are charging to 12V in parallel config, then drop to 6V in series. I don't understand why.
I saw this strange effect by slowing the cap pulser.

To test it, I tried the same thing by replacing the battery with an another 68uF/400v capacitor (charged at 12V), without a load. It runs down rapidly instead of charging up. I know I made THE mistake. Forgot about the diodes...

Here's an update to what I have in mind to test this week-end if I manage to find a 4PDT relay.


If everything goes right, the next step will be replacing the battery and capacitors with 22000uf/100V capacitors and bigger voltage load + zenner diodes to keep everything at a certain level.
Then,
And then:

[nafanja]

The time for discharge

I am interesting to know the time for discharge.

I see that is a 1 second or 2 seconds, what is best time for discharge?

[eastcoasttinker]

non 555 cap pulsers

Can someone post a cap pulser that doesn't use a 555 or h11d1. I'm not good with ic-s and want to do it old style. Any links, sites, or post would be great.

Thanks

[Web000x]

Here this should help you. Focus on the scr/cap/battery arrangement. It is a very versatile setup.

The cap dumps as soon as the diode going from the anode to the gate of the SCR starts conducting. If you want it to dump at higher voltages just keep putting more diodes/zener's/LEDs in series with the A to G diode until you get the level you want.



Dave

[boguslaw]

Here this should help you. Focus on the scr/cap/battery arrangement. It is a very versatile setup.

The cap dumps as soon as the diode going from the anode to the gate of the SCR starts conducting. If you want it to dump at higher voltages just keep putting more diodes/zener's/LEDs in series with the A to G diode until you get the level you want.



Dave

Very nice circuit ! Could you explain how to choose diode to obtain required voltage trigger ? For example I want it to protect my solar charging device. I plan big joule thief connected to small solar panel charging 10000uF 25V capacitor. I'd like capacitor to discharge into 12V small lead acid battery (7Ah) every time it reaches 24V.How to get it ?

[Farmhand]

Hi Boguslaw, Maybe Dave will confirm this or add to it, I use these cap dischargers a lot.

To make it drop at 24 volts you just add the trigger/threshold voltage of the SCR (from datasheet) to the forward voltage drop (measured) of the regular diode or LED then add the required Zener to get to 12 volts so added to the 12 volts of the battery it will be 24 volts.

However the drop voltage will change slightly depending on the battery voltage.

The way the SCR is orientated in the negative line can be confusing.

Also I found that sometimes the SCR will not switch off and continues conducting (common problem), it should work quite well though with 10000uf and a joule thief.
I think it happens when the capacitor is too small or the source charging it is charging it to quickly to allow turn off. Or the capacitor takes too long to discharge.

I think this can be solved by using a triac in place of the SCR, the triac should turn off each dump, I think.

SCR's are fairly tough.

Cheers

[Guest]

Dual Function Recovery Winding

The purpose of a north pole motor seems as though it would benefit
from a certain modification where the efficiency of generating thrust
on the wheel would be offset by the use of a dual input facilitated
by sensor switches coupled onto capacitors.

When a primary capacitor is thrown into charging the power coil, its
energy transfers into the recovery coil and dumps into another capacitor
in parallel with many others. During the off pulse, one or two of them
would be thrown back to the primary while the rest are left to continue
absorbing energy from the magnetic interaction.

[Guest]

Wouldn't using the recovery winding for charging up a standard 12V battery
charger circuit also be another valid way to utilize the energy being
produced by a N-Pole motor?

[twinbeard]

Nice circuit. In the case of a Zener diode, one would reverse the polarity as compared to the rectifier in the schematic, correct?

Cheers,
Twinbeard.

The cap dumps as soon as the diode going from the anode to the gate of the SCR starts conducting. If you want it to dump at higher voltages just keep putting more diodes/zener's/LEDs in series with the A to G diode until you get the level you want.



Dave

[minoly]

Nice circuit. In the case of a Zener diode, one would reverse the polarity as compared to the rectifier in the schematic, correct?

Cheers,
Twinbeard.

try this one.

[totoalas]

Solar SSG Bedini Charger

try this one.

Hi Patrick,

Can a 60 W 18V dc Solar panel directly be connected in parallel with a 3300 uf 450 v cap going to a 6 coiler Bedini and out wit another 3300 uf 450 v parallel to the charge battery of 60 AH ????????

Also , in your video 7Ah charging 500 Ah batteries , how long did it take to top off the voltage in the batteries ????

thanks,

totoalas

[minoly]

Hi Patrick,

Can a 60 W 18V dc Solar panel directly be connected in parallel with a 3300 uf 450 v cap going to a 6 coiler Bedini and out wit another 3300 uf 450 v parallel to the charge battery of 60 AH ????????

Also , in your video 7Ah charging 500 Ah batteries , how long did it take to top off the voltage in the batteries ????

thanks,

totoalas

Hi Totoalas,
I'm the last person you want to ask a conventional question, re solar to cap.

It's been a while, I thought I mentioned the time it took in the vid, if not, I think it was somewhere in the 3-4 hour range.
I hope your builds are coming along well,
Patrick

[totoalas]

Hi Totoalas,
I'm the last person you want to ask a conventional question, re solar to cap.

It's been a while, I thought I mentioned the time it took in the vid, if not, I think it was somewhere in the 3-4 hour range.
I hope your builds are coming along well,
Patrick

Thanks Patrick

totoalas

[blackchisel97]

Hi Patrick,

Can a 60 W 18V dc Solar panel directly be connected in parallel with a 3300 uf 450 v cap going to a 6 coiler Bedini and out wit another 3300 uf 450 v parallel to the charge battery of 60 AH ????????

Also , in your video 7Ah charging 500 Ah batteries , how long did it take to top off the voltage in the batteries ????

thanks,

totoalas

totoalas I would use higher capacitance, such as 20000uF and close to the operating voltage of your source (panel) - 25 - 40V max.

V