Author Topic: STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM (Read 1211424 times)

Omnibus · « **Reply #690 on:** December 29, 2009, 01:58:13 AM »

Thanks @Reincarnate,
Unfortunately, the video wasn't of much help. What was it supposed to demonstrate didn't come across at all.

As for this:

Quote

If you understand how Thanes device works and have a close look at the Orbo and you see EXACTLY the same thing except a pulse motor and toroids instead of a coaxial coil.

If that's the case then Thane Heins' is quite different from Orbo because the pulse motor as well as the toroids are the most substantial part of Orbo. If I find our what Thane Heins' device really is I may probably revise the above conclusion but thevideo definitely didn't help one bit in understanding its principle of action.

k4zep · « **Reply #691 on:** December 29, 2009, 02:08:40 AM »

Quote from: interestedinou on December 29, 2009, 01:03:57 AM

Would you please post a simple drawing of what you mean by a diode across the coil?

Do you mean a diode right before the coil that blocks the flyback from going back to the positive terminal?

Hi INT,

Schematic below. Diode across coil L1. When transistor turns on, Collector goes low and that junction goes to ground. When transistor turns off, inductive kickback in NORMAL inductor will drive the collector/inductor junction higher than the +12VDC, turn on Diode and induced back EMF will go back into coil. Used all the time to protect transistor. This is the short explanation.OKDOKIE......

Ben

callanan · « **Reply #692 on:** December 29, 2009, 02:13:00 AM »

Hi All,

I have updated my current Steorn test motor platform with a new switching circuit as attached below. I am still using the same two toroidal coils as in the previous video. The only thing I have changed is the switching circuit which I have designed to send the coil's collapsing emf straight back to the battery. I am still using a small reed switch for triggering because the optimal tuned trigger point is so very delicate and changes as the RPMs go up that I need to find it and move it manually by hand.

I can now get the rotor to approximately 2000 RPM using only 10ma at 12V. Yes I said "ten milliamps"! I do NOT need to use more current to start it at low RPMs! By carefull and precise hand movement of the reed switch I can get it up to 2000 RPM using no more than 10ma at 12V at any time!!!

Regards,

Ossie

k4zep · « **Reply #693 on:** December 29, 2009, 02:18:33 AM »

Quote from: callanan on December 29, 2009, 02:13:00 AM

Hi All,

I have updated my current Steorn test motor platform with a new switching circuit as attached below. I am still using the same two toroidal coils as in the previous video. The only thing I have changed is the switching circuit which I have designed to send the coil's collapsing emf straight back to the battery. I am still using a small reed switch for triggering because the optimal tuned trigger point is so very delicate and changes as the RPMs go up that I need to find it and move it manually by hand.

I can now get the rotor to approximately 2000 RPM using only 10ma at 12V. Yes I said "ten milliamps"! I do NOT need to use more current to start it at low RPMs! By carefull and precise hand movement of the reed switch I can get it up to 2000 RPM using no more than 10ma at 12V at any time!!!

Regards,

Ossie

Hi Ossie,

That circuit is so good, it's bad.....MOST excellent. Get you a good Hall effect in there and stand back!!!!!

Ben

captainpecan · « **Reply #694 on:** December 29, 2009, 02:22:56 AM »

Quote from: Groundloop on December 29, 2009, 01:53:48 AM

All,

I have tried a yellow/white Iron Powder core. The current needed to saturate
the core was so high that my hot glue melted. What kind of core material
is the best to use?

Groundloop.

lol, I know what you mean. I'm in the same boat. I used simple ferite toroid I got in a multipack at radioshack. I ended up with the same results as you. I'm winding up a steel bushing now to see if the much lower permeability of steel will help or hinder this thing. I'm beginning to wonder if Steorn made their own cores... Maybe magnetite or something. 1200 rpms out of D cell still seems out of reach with what we know so far, so something is still a mystery.

Groundloop · « **Reply #695 on:** December 29, 2009, 02:26:54 AM »

@callanan,

My I humbly ask what core material you use in your toroids?

Edit: Are you sure that the right most diode in your drawing is the right way?

Alex.

callanan · « **Reply #696 on:** December 29, 2009, 02:32:44 AM »

Quote from: k4zep on December 29, 2009, 02:18:33 AM

Hi Ossie,

That circuit is so good, it's bad.....MOST excellent. Get you a good Hall effect in there and stand back!!!!!

Ben

Hi Ben,

Thanks. I intend on getting a hall effect switch to compare to the reed switch. The reason the reed switch is working so well is because I can angle it and control the distance easily which in turn controls the timing but more importantly, the pulse width. I should be able to do this with a hall effect switch also so it will be interesting to see if it gives me just as much control to compare it.

Until people build their own motor, they won't realise just how precise the positioning and pulse width has to be for the trigger. The higher the RPMs the more delicate this becomes and most people who build this motor will simply roughly just place the switch in a position to make it run with no regard for the pulse width if they can get it to run at all. It is NOT an easy motor to get to run and the switching point is very fine and delicate and related to RPM. So it WILL use more power input then it has too if this is not considered and done. But precise active switching timing and pulse width adjustment of this motor gives a 100 times increase in efficiency from what I am seeing!

Regards,

Ossie

captainpecan · « **Reply #697 on:** December 29, 2009, 02:36:02 AM »

Way to go Ossie! Can you manage to get that baby running on 1.2 volts by any chance? Not that it is important with as well as yours is performing. Just curious if your setup can duplicate Steorns low voltage...

Reincarnate · « **Reply #698 on:** December 29, 2009, 02:37:52 AM »

Quote from: Omnibus on December 29, 2009, 01:58:13 AM

Thanks @Reincarnate,
Unfortunately, the video wasn't of much help. What was it supposed to demonstrate didn't come across at all.

As for this:

If that's the case then Thane Heins' is quite different from Orbo because the pulse motor as well as the toroids are the most substantial part of Orbo. If I find our what Thane Heins' device really is I may probably revise the above conclusion but thevideo definitely didn't help one bit in understanding its principle of action.

Omnibus, I suggest you dig a little deeper and do your own research... There are 40 videos on his youtube page and you didn't watch them in that short amount of time.

Next he used the username crankypants here at overunity and if you do a search for that username, you only get two hits even though he made hundreds of posts. I can't explain that but maybe you can PM him and he can.

He works with others that use this web site such as gotoluc and maybe he can illuminate you.

The fact is, you are looking at the same base process once you see and understand what they have in common.

Good luck

callanan · « **Reply #699 on:** December 29, 2009, 02:41:49 AM »

Quote from: captainpecan on December 29, 2009, 02:22:56 AM

lol, I know what you mean. I'm in the same boat. I used simple ferite toroid I got in a multipack at radioshack. I ended up with the same results as you. I'm winding up a steel bushing now to see if the much lower permeability of steel will help or hinder this thing. I'm beginning to wonder if Steorn made their own cores... Maybe magnetite or something. 1200 rpms out of D cell still seems out of reach with what we know so far, so something is still a mystery.

Hi CP,

I have tried winding a coil on a steel washer but it was no good. But in regard to what you and GL are trying with your attempts on ferrite cores, it is likely that you have had a motor that will work but did not realise it. The best test I have found is to simply energise the coil next to a rotor magnet in the still rotor and see if it moves. If not, rock the rotor slighly and pulse the coil and see if you can increase the movement like swinging on a swing. Ben mentioned this in his early posts and I agree that it is the best method I have tried to know if you coil can dirve the motor.

If your coil does this then it WILL drive the rotor. All you need to do is find the sweet spot with the reed switch or hall sensor and sometime you need to give it a good twist with your hand if your coils are not that good.

Regards,

Ossie

Groundloop · « **Reply #700 on:** December 29, 2009, 02:46:30 AM »

@callanan,

Great job on your motor.

My motor runs. I'm using a Hall switch. But my Iron Powder core gets really warm
and the motor uses too much power. What kind of core material are you using?

Also, I think you got the right most diode in your drawing the wrong way.
As it is now the current is free to flow to ground when the top transistor opens up.

Edit: Attached is my switch drawing.

Alex.

callanan · « **Reply #701 on:** December 29, 2009, 02:58:04 AM »

Quote from: Groundloop on December 29, 2009, 02:46:30 AM

@callanan,

Great job on your motor.

My motor runs. I'm using a Hall switch. But my Iron Powder core gets really warm
and the motor uses too much power. What kind of core material are you using?

Also, I think you got the right most diode in your drawing the wrong way.
As it is now the current is free to flow to ground when the top transistor opens up.

Alex.

Hi Alex,

Thanks for the circuit diagram errata. I will update it shortly.

I am using the following cores from Jaycar Electronics here in Australia. www.jaycar.com.au. See picture below.

You need as many turns on you core as you can possibly fit of medium to pretty thin wire! This will reduce the current input and increase the core saturation for voltages around 12 volts.

Regards,

Ossie

Groundloop · « **Reply #702 on:** December 29, 2009, 02:59:27 AM »

@callanan,

Thank you. :-)

Rewinding new core now...........................

Alex.

hartiberlin · « **Reply #703 on:** December 29, 2009, 03:27:21 AM »

Ossi,
great new circuit.

Please could you try this circuit
with a big electrolyte cap of at least 10,000 uF or
more and let me know, how fast it will charge up ?

Many thanks.

hartiberlin · « **Reply #704 on:** December 29, 2009, 03:30:41 AM »

P.S. Please Ossi,
please reverse also the polarity of the toroidal coils versus each other and see, when the voltage
will rise the fastest in the cap .
Many thanks in advance.

Regards, Stefan.

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Author Topic: STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM (Read 1211424 times)

Omnibus

Re: STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

k4zep

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callanan

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k4zep

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captainpecan

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Groundloop

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captainpecan

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Reincarnate

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callanan

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Groundloop

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callanan

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Groundloop

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hartiberlin

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hartiberlin

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