Body
MickSelf resonance, a perfectly tickled LC circuit, living off the avails of high Q.Now there seems to a beastly amount of energy when feed chopped DC into an inductor from"back EMF" coming out of the coils of the transformer, when the circuit is opened. Fast diodes, and the right value capacitor, and resonance, what could be better!
Oh, maybe getting resonance is not quite so simple?You are an audio guy, right?Somewhere in your career, you must have had feedback screaming through speakers?Is that resonance, or self oscillation?I know it is low frequency, but I just am trying to get my mind around an abstract topic, and possible useful tool, in our quest.Cheers Warren
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On Sat, 27 Oct 2018 at 12:10 PM, Mick [email protected] [EVGRAY]<[email protected]> wrote:
Hi Warren,
I think you may be a bit disappointed by the stand alone version as it runs at a much lower frequency due to being designed for a much lower impedance coil, a few turns air core. The induction cooker coils have ferrite ribs and are actually a pretty high Q. I measured a Q of 200 at 100kHz and a self resonance somewhere around 1mHz, I forget but have it written down, therefore the induction hobs are likely around 1mHz also.. The Q was sharp enough at it's resonant frequency that I could vary 1 Hz and see a diff. The stand alone was under 30kHz with a regular cooking burner coil on it, closer to 20k if memory serves. With the China stand alone I have not bothered changing the inductors or caps to smaller sizes as all this Chinese crap has the lead free solder that requires way too much heat. Kind of like silver brazing copper one has to know their game or the copper burns, with this shit solder the PCB burns easily. Was difficult enough changing FET's I burnt up.
Nice work you are accomplishing, becoming a stone mason and restoration expert. Hope you have a place to work before winter comes charging in up there.
On 10/27/2018 4:47 AM, Warren Keillor [email protected] [EVGRAY] wrote:
Mick
Those guys are fantastic! Yes, it is everything needed to be able to keep control of the cooker. I do wonder, though, if I am technically up to their capability with pin outs and all, since they seem to have a deep down, and dirty, grasp of the cooker guts. However, they are on to it, and I am thrilled. That was a very nifty result I was getting, using that Tesla pancake to drive the 3hp dc motor like a Dremel tool, until the stove thought I was a child fooling with the cooker, and shut down on my shenanigans. Mine is a cheap Walmart hot plate type, that sounds similar. I bought a Chinese 12 volt dc unit, a furnace, that I had yet to try before this moving nonsense. I don't think it needs more than hooking up to 12 volts dc, but didn't even get a chance to check it out before the moving trucks came. It has arrived here ok, and at least was put in the house, rather than some leaky out building, like some of the gear. Thank you for the reminder, with that great bunch of geeks at work They are amazing! We have lots of work to do! Cheers Warren
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On Fri, 26 Oct 2018 at 8:47 PM, Mick [email protected] [EVGRAY] <[email protected]> wrote:
Warren,
I found this for you, maybe you can look inside your induction cooker and see if this matches up to proceed with a lobotomy. Don't forget to discharge the caps, those little poly suckers can hold a charge for days.
http://openschemes.com/2011/04/28/manual-control-of-the-1-8kw-induction-cooktop/
On 10/26/2018 5:27 PM, Warren Keillor [email protected] [EVGRAY] wrote:
Hi Jim
Yes I have a big Bedini wheel, capable of mounting 18 coils on the 48" diameter 3/8" plexiglas disc mounting platform. It also has a 5/16" drive shaft to mount accessories, should that come to mind. Cheers Warren
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On Fri, 26 Oct 2018 at 2:22 PM, James Glinski [email protected] [EVGRAY] <[email protected]> wrote:
Warren I thought of you because you have a functioning Bedini wheel .I was reviewing some Bedini DVDs and remembered he said that he was running his units on moon light .well remember the old oil lamps of the 1800 ,s what if you could find the right light like a LED and put a solar panel behind it on the wall .if the moon can run the units.. a light should do better .and he said that the magneto effect was the real power of the unit and is generally disconnected from the power source in that there's a sweet spot and adding more power doesn't increase the scalar out put .he said some of his units were 18 times OU .so if the right combination could be found you would have permit light and recharge day and night .your yacht could have its own sun regardless of the time or weather and be fully lite up constantly .the mono plasma solar cells would be best for this .a looper ? Mine is in parts right now .also you might use a florescent four foot tube and run it on a small flyback transformer .it's plasma and the light off of it would be combined with the EMF coming off the plasma to the panel to help charge .and old flyback just whine wires around the exposed core and put a diode to that and plug into a varac and slowly ajust to brightness ..they run on 700 volts but 25,000 would really run it . just a thought .jim PS he said Watson's unit would turn on only occasionally due to that big fly wheel meaning it was running on the magneto effect with out power that's why it was so OU .absorbing the pluse kick energy and just running on that .next up grade is a big flywheel .on that I was thinking concrete might work well heavy pourable long lasting .? Jim out
On Friday, October 26, 2018, Dave Muckerman [email protected] [EVGRAY] <[email protected]> wrote:
Warren good point, about the eddy current.
Oh way back you wrote about grounding a solar system.... I like to keep mine floating but have ground wire surrounding panels to collect static. My home wiring is left as is with neutral grounded at many points through appliances.. I found it impossible to get it all floating. I recommend using a isolation Tx on your inverter to home wiring so you inverter and batterys won't become hot!
My cable internet uses a ground and needs 12 volts DC for the modem from my solar DC and caused havoc without the isolation.
On Thursday, October 25, 2018 10:49 AM, "Warren Keillor [email protected] [EVGRAY]" <[email protected]> wrote:
Dave The eddy currents in a brass core will get it hot, I would expect. Cheers Warren
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On Thu, 25 Oct 2018 at 11:09 AM, Dave Muckerman [email protected] [EVGRAY] <[email protected]> wrote: Does anyone not know using brass instead of iron in a core will make any coil less inductive than no core or air? Wonder if anything good could result?
air coils don't saturate right?
On Thursday, October 25, 2018 8:03 AM, "Norman Wootan [email protected] [EVGRAY]" <[email protected]> wrote:
James! During my many years of hands on Electrical Contracting and Researching electrical phenomenon, my first real brush with the Neutral Spike was while designing small electric motors in 1981. This was a tall stack shaded pole motor that was designed to be reversible by switching the position (electrically) of the capacitor in series with the start windings via double pole/ double throw reversing switch. This new prototype motor was MFG in Chine and test samples were shipped to me for QC testing. Destructive testing included the reversal of the motor while running full speed forward via switching the reversal switch! When switched the double throw switch literally exploded with a loud WOOOMP! and a bright green flash. (vaporized copper). I had a double EE Professor from UT Arlington come over and observe the phenomenon. since the whole 1/6th HP motor was being run off 18ga. zip cord with earth bond ground wire to motor frame, it was quit bizarre to see a 30 amp rated switch just explode. His calculations could not explain where the burst of energy came from. After welding the contacts of several heavy duty reversing contactors and examination of the original motor schematic with the wiring as received from China ,I found that the little lady in tennis shoes (assembly line Chinese lady) had placed the reversing circuit and switch on the neutral side of the line input. In effect (when in transit) the entire motor electric circuitry was in an isolated state (floating neutral) condition which is a great big NO, NO, This set up the perfect scenario for the neutral spike from earth ground to occur. I have written all this up several times before for this EVGRAY site. Most people do not understand how shaded pole motors work much less how you reverse their rotation. You have to reverse the rotating magnet field by phase angle 90 degree leading or 90 degree lagging (start windings) relative to the main run windings. See: https://en.m.wikipedia.org/wiki/Shaded-pole_motor https://woodgears.ca/motors/ reversing.html
On 10/24/2018 10:10 PM, James Glinski [email protected] [EVGRAY] wrote:
Just my opinion but that looper might be a version of the pulse led out research .a Chinese guy mad a wheel and found that if you pulsed once you get three back .the heavy fly wheel would absorb the kinetic energy from the pluse and run the DC generator .the board would control the pulse timing .a1000 watt pulse would return 3000 watts in kinetic energy .spread that energy around the pancake motor coils to reduce general over loading of a single .point .but the Chinese version doesn't use iron cores .this is a lot like bedini's first self runner but he adjusted it for one battery .and ran for 15 years .what if he adjusted it for ten ?
https://www.johnsonelectric. com/en/resources-for-engineers/ac-motors/principle- of-operation
On Oct 24, 2018 3:35 PM, "Mick [email protected] [EVGRAY]" <[email protected]> wrote:
Norm, How many different setups did you use in your formal investigation of the neutral spike, I know about the locked rotor motor but were there others?
There seems to be some crossover with Don Smiths claims of aluminum and copper used as opposing capacitor plates and the work of the builder of the Swiss Testatika machine.
What if any interesting observations have you made in re to the copper/aluminum function?
On 10/24/2018 12:13 PM, Norman Wootan [email protected] [EVGRAY] wrote:
Mick! I was the first on this site to bring up the Evenescent wave &
critical angle for it was in my research on a zero loss solar heat
collector. This tied in directly to MBKIng work on the plasmoid
experiments.
https://web.stanford.edu/~ajlucas/Evanescent%20Waves.pdf
https://en.wikipedia.org/wiki/Evanescent_field
On 10/23/2018 7:37 PM, Mick [email protected] [EVGRAY] wrote:
> Zenneck or Evenescent wave
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