Effects of Recirculating BEMF to Coil

[gotoluc]

Hi everyone,

it has been a while since I posted new information but yet again here is another interesting effect I have come upon.

As usual, the video explains most of what you would need to know if you would like to try this.

Video Link: YouTube - Effect of Recirculating BEMF to Coil test 1

I personally think it is worth much more investigation to come to understand why the BEMF has so much more effect on a magnet when re-circulated back in the coil then the original energy input

Could this be what Ed Gray did?

If anyone does understand this and can explain it, please do not hold back!

Thanks for looking

Luc

[Inquorate]

nice mechanical switch

Excellent video as always

i'll take a punt at arranging the radiant event from the first coil to funnel through another adjacent coil on my bedini pull motor tonight.

YouTube - reed switch and neon vs transistor and diode bedini circuit aka mechanical switching

p.s. do you find that the mechanical switch gives a different waveform?

i'm living vicariously through your 'scope

[gotoluc]

Excellent video as always

p.s. do you find that the mechanical switch gives a different waveform?

Hi Inquorate,

thanks for looking and taking the time to post

When I first found this effect I was using a mosfet as a switch and for some unknown reason at higher frequencies (once the diode is connected) it doesn't show a drop in current draw so I thought it could be the case of it being a electronic component (diode switch) vs. a real switch. So I built a real switch and so far shows a good effect. The only problem is I can't go as high of frequency and voltage as the mosfet.

If you are interested in testing this I would recommend short duty cycles for you to see the effect the BEMF has on the coil and magnet.

Please do let me know what you find.

Luc

[Inquorate]

Fast switching

I've got a little unit that does 5 khz - ish

YouTube - Mechanical Switch - Mark II - 5khz - reliable

Reed switches don't switch that fast reliably; sticking 'on' issues, so I use a strip cut from bendy razor blades.

The adjusting screw to push the strip closer to the contact is necessary at higher switching rates, else the travel time back and forth is too long

Take care, always a pleasure to converse with you

[Inquorate]

Diode

Also, try using a neon in place of the diode...

[gotoluc]

Also, try using a neon in place of the diode...

Hi Inquorate,

I just tried it with the neon but nowhere close to the effect with the diode.

I like your Mark II mechanical switch but I'm not understanding how it could be close to 5 khz unless your wheel is turning at 35,000 RPM / 60 seconds = 583 turns per seconds and if each magnet makes a pulse then multiply X 8 = 4,666 hz ... do I have the math wrong

Let me know and a big thanks for taking the time to share your research.

Luc

[Inquorate]

18800 rpm (Standard (High Power) D.C. Motors 18800 RPM - Jaycar Electronics)
/ 60 seconds
= 313.33 hz
* 7.2 diameter of first wheel
= 2256
/ 2.5 diameter of second wheel
= 902.4 hz
* 8 number of magnets on the wheel
=7219.2 hz
=7.2khz

minus losses (switch not firing, loaded motor, battery not at peak, belt drive slipping etc)

~5kz

[Inquorate]

Schematic

@ Luc - how exactly does one connect a coil to route the 'bemf' back through from the diode?

Also, the neon really does kill the radiant voltage, I measured 1000v difference between meter readings (for neon and for collector diode) on the same cap just pulsing a coil with my mechanical switch at half pace

Love and light

[gotoluc]

Hi Inquorate,

just place the diode on the negative side of the coil and directed so positive can flow to the other end of the diode which goes to the positive side of the coil. I have a switch between the positive side of the diode and coil so I can turn it on and off to observe the change.

Let us know what you find.

Luc

[gotoluc]

Hi everyone,

here is a new video that may help since I'm not getting much feedback from the rest of you. Is there something that I'm missing or misunderstanding here ... Please be honest and share your thoughts

New video: YouTube - Effect of Recirculating BEMF back into Coil test 2

Luc

[stringguy]

hi L,
i subscribe to this thread and only just got the email telling me something was going on. this could be why no one has known. brilliant stuff...
pulse the bemf switch and make the neo dance...imagine the extra from the heavy neo falling, twould be awesome.
thanks always for posting, and your vids are clear ! which makes me a fan..

[gotoluc]

Hi stringguy,

thanks for posting your positive comments, it helps and encourages me

I will start building a motor that works on this principal to demonstrate it could work.

Stay tuned.

Luc

[stringguy]

hey,
i realise now you already have done what i sugested. i watched your last vid first...sorry bout that :/

[ABCStore]

Hi, gotoluc

Very interesting effect, indeed. I wonder how bifilar coil would react with secondary winding being fed BEMF through the diode. Potentially incorporating this into SSG...

ABC

Edit: trifilar, not bifilar, with one of the secondaries lopd back via a diode

[SkyWatcher]

Hi folks, Hi gotoluc, great work you are doing and i've watched almost all your vids. You are keeping things simple which i feel nature actually is simple. Not sure if you noticed but these current experiments your doing are very similar to the Rosemary Ainslie thread where she is also routing the collapsing magnetic field back through the original circuit. Great stuff, of course im running tests myself and all your experiments have merit. Thane Heins and his perpetia generator are very similar also, since he short circuits his coils which is basically what your doing and others as well. Keep it up the great work, the universe is watching.
peace love light