SJRC - Super Joule Ringer Charger. A new breed is born

[Peanutbutter29]

I was able to get another transformer running and a little different circuit.  Again, able to charge batteries and light bulbs.  Though, the improper coil design, coupling (since ferro core), extra wind, small wires and lower inductcance;  amounts to being less 1 bulb and the v1.0 charging system. 

It took quite a while to get the DC converter section to charge without taking any energy from the system and so a primary based charge system is not optimal, though could be used along with v1.0 if the L2 is large enough.

I think this coil should be easy to get, as toroidal power transformers are common.   I show the model number and such on the video, but I'll put here again too.
http://www.youtube.com/watch?v=-N1wVLtKHXw&feature=youtu.be

Mei AH Electrical and Industrial Model:  ED10151R4  (A3032)

Primary 117v 60hz
Secondary 8.5v 600ma
Secondary 13v 2A
Secondary 13v 2A

Appx 4" OD 1.75" ID 1"H

Schematic and values shown below, hope this helps

Thanks PB

[conradelektro]

@Peanutbutter29:

In order to make sure that I understood your air core coil advice correctly I made a drawing of a coil with opposing coil halves.

The drawing is for a helically wound air core coil (e.g. wound onto a plastic pipe). I would like to ask you to check that this is what you meant?

I have no idea how it could be done with pancake type coils?

Greetings, Conrad

[Peanutbutter29]

@ conradelektro Nice job with the representation!  Yup! you have it correct.  It's very similar to disruptive discharge in terms of winds, but inverted in terms of coupling.  Don't run too fine of wire on the L2 though. 

For pancake, your primary would be the the dielectric location if we were to compare the layers to a capacitor.  So secondary halves would be the plates.

Also, at Stephan's request I posted a video with some scope shots.  I hope it covers what was needed.  I also, run the latest v1.1 on a regular 12v lead-acid for further power supply isolation. 
http://www.youtube.com/watch?v=_U-uepE19Lw

Also, I should point out.  After doing a couple of these (and this one being 6 bulb max)  I would say your gonna need 60mH PER BULB on the secondary for decent output.  Again being related to energy stored in the L2.  I could run more than 6, but not at a good light or power ratio;  so I consider that a balance. 
So, if you wanted to light 10 bulbs you need 600mH.

I believe the above will hold true if "properly" tuned with caps.

Last, I guess it was nice to see the wave form, thanks to Stephan for making me dig it out .  I did expect a difference in the half cycles as shown, but was a bit different in shape than I'd visualized.  I suppose that's the negative issues with this coil though.

Thanks, PB

EDIT: I added better annotations to the video at 3:30 to better explain switching.  I hadn't looked at the wave really when shooting the video and didn't state the best.   The L2 has a very nice "Ring down" too! 
I also found a couple other video's with standard oscillator and Super Joule Ringer scope shots.  There is NO similarity with my shots.  I'd say for sure then, I'm not nuts with this tuning and what I'm doing, lol and Yay!

[Peanutbutter29]

After the above edit I thought I should add the video links showing other oscillator shots.

First, is a standard Lasersaber joule ringer
http://www.youtube.com/watch?v=Gl3h5D5vpBA
Shots start close to 2:00

Second, is a nice video that shows 3 scope shots;  A positive, 2 transistor positive, and lasersaber Super Joule Ringer
http://www.youtube.com/watch?v=T9hvkr2G9Lw
Shots through out.

Makes a good comparison of all the designs that way, an two Super Joule Ringer shots.  There's a pretty large difference between those and the SJRC shots above. 

Thanks, PB

[conradelektro]

Today I could wind a better primary coil with 50 turns of 1 mm2 litz wire. The performance is much better (brighter lights) but also the power consumption went up.

The circuit (see in my previous posts) seems to use about halve the Wattage as specified on the lamps, but the lamps are probably not exactly as bright as on the 220V mains (but close, it is hard to tell without a Lumen-meter).

I will now try to build an air core coil with opposing coil halves as suggested by Peanutbutter29. Since I have to buy a 150mm diameter evacuation tube (as a support for the windings) and the right wire it will take some time. The intention is to tune the coil and the circuit to 12V to 13V operation (on a 12 Volt solar power net).

The 220V LED lamps seem to work best and one can use them as bought (in other countries it would be 110V LED lamps which need slightly different coils, halve the step up factor between primary and secondary).

The 220V CFLs need some good Wattage (may be 2 to 3 Watts) to start if the built in circuit is left in place. The tubes alone start up at 50mA with 600 Volt (but of course very dimly).

@Peanutbutter and other experts: is litz wire for the coils a good idea?

Greetings, Conrad