Flunn paralell path!!!

[sciencisto]

Parallel Path Magnet Motor ver. 5 but without magnets

Version 5 under testing, just starting, using weaker magnets. But first, what is interesting, the Parallel Path Magnet Motor works well even without any magnets. In this case it is Switched Reluctance Motor.
Three short films:

YouTube - scienculo's Channel

YouTube - scienculo's Channel

YouTube - scienculo's Channel

[sciencisto]

PPMM vers.6

I removed big magnets from the stator and inserted small ones. Before one magnet was 2x2x3 cm, now it is a round one 1.5 x 2 cm only. This makes a huge difference, the motor can be run on 1 V and 0.1 A that makes 0.1 W.
SRSM6 motor runs from AAA battery. And, I need to hold the shaft very strong to stop it!

See yourself these two short videos:
YouTube - SRSM6_2 (may be still converting)
YouTube - scienculo's Channel

[peper10]

Congrats men!!

What a way to go..
I wish i could have youre craftmenship..
Thanks for sharing.

[sciencisto]

SRSM6 at 0.6 V !

Today, when testing I went down with the input voltage to 0.6V. The motor was still running at 10 rpm. 0.6V is the critical low voltage for the mosfets. I guess if instead of the mosfets there was mechanical commutator switching, I could still go lower with the input voltage.
Here:
Well, it works even at 0.6 V
YouTube - SRSM6_3

[Jetijs]

Very impressive
Do you use a separate power supply for the logic and switching side leaving 1v to the coils only? Or are you also running the MOSFET gate and optoswitch with that voltage?

[sciencisto]

separate input power

Jetijs

Yes, the IC mosfet bridge driver circuit is powered from 12 V battery, it's recommended minimum. It draws about 40 mA at maximum.
The 0.6 V at minimum powers the H FETs bridge, as you can see on the schematic:
http://servilo.website.pl/laboratori...wanie_rys1.png

[sciencisto]

ver. 6 update

To make it clear and avoid confusion (I deleted one file from youtube and editet the others), here again.
Parallel Path Magnet Motor version 6 (in Polish: Silnik Równoległych Ścieżek Magnetycznych SRSM6):
1.
powered by AAA battery 1.5 V drawing ~0.1 A
YouTube - SRSM6_1
2.
how it works at input voltage from 1 V to 30 V
YouTube - SRSM6_2
3.
works at input voltage as low as 0.6 V
YouTube - SRSM6_3

Updated schematic I am using from version 6:
http://servilo.website.pl/laboratori...nie_rys1_2.png

[sciencisto]

version 7

Continuing my research with PPMM (Parallel Path Magnet Motor) version 7. The difference is that this motor has ferrite magnets, as you suggested. They are much weaker compared to the previous ones, neodymium, but same dimensions.
What I can see is that the overall efficiency of the entire setup is higher. The rest you can imagine.
But I am not claiming OU, it still needs more research.
YouTube - SRSM7_2

[Jetijs]

Great news
Glad that you have not abandoned the project. Can you elaborate more on the setup in your last video? What was the motor consuming and what was used for heating the resistor?
Many thanks!
Jetijs

[sciencisto]

answers

Jetijs, I am still testing different setups, but I post just little here, because there is not much new to inform you about.
This is the circuit I am using:
http://servilo.website.pl/laboratori...anie_rys12.png
The R=20 ohm 1 kW is changed to the 27 ohm heater.
Ferrite magnets are now used in the motor, not neodymium ones as before.

[Jetijs]

Awesome!
Thank you for the circuit, looks very simple and reliable!

[sciencisto]

more tests with version 7

I just finished uploading and making English subtitles for the short videos. Please, see them here:

SRSM7_1
Parallel path magnet motor SRSM7 version 7 of nominal ~ 1 kW power -- a test how it works from 0.7 V to 30 V, when drawing power starting from 0.15 W. This version differs from the previous ones with magnets, now ferrite magnets are used, not neodymium ones.
YouTube - scienculo's Channel


SRSM7_2
Parallel path magnet motor version SRSM7. The input is set up so as the entire system consumes 30 W. The energy recovery subsystem consumes 27 W, so the motor itself practically is using only 3 W.
YouTube - scienculo's Channel


SRSM7_3
Parallel path magnet motor version SRSM7 of nominl power ~ 1 kW, goes on a button battery from a calculator or a watch!!!
YouTube - scienculo's Channel


SRSM7_4
Parallel path magnet motor version SRSM7 of nominal power ~1 kW, goes on AAA battery
YouTube - scienculo's Channel

[Jetijs]

Hi sciencisto
Lol, I think I will have learned Polish language from your videos soon!
Great stuff. I am impressed. So have you any ideas on how to recover the energy directly to the input? Maybe this circuit of my attraction motor will help:
http://www.emuprim.lv/jetijs/plog-co...rs/shema12.gif

It uses bifilar coils so that one strand of each coil can be used to power the motor and other strand is used for the recovery. If you don't have a separate winding for the recovery, it is very tricky to recover the power to the input directly. This might work in your motor also, but additional strand of coil could be needed. This way your motor might reach OU, I certainly hope so.
Thank you!

[gyula]

Hi Folks,

Speaking of how the recovered energy be used at the input directly, you could consider Peter's schematic shown here:
http://www.energeticforum.com/induct...html#post56075

It is a bit similar to what Jetijs shows in his schematic in that the series diode in the negative line of the supply voltage is also there (this is essential in separating the power supply voltage from the recovered voltage) and different in that diodes are used for steering the spikes back to the input whereas Jetijs uses a separate coil for this task.
Of course, you have to join two such schematics in the above link to sum the recovered juice in the same common capacitor C. (The correct value of this C is also to be chosen correctly in a particular setup, start from 100uF and go higher till the recovered voltage does not increase significantly, this depends on rpm too.)

Sciencisto, do not be confused that the series diode here is placed in the negative supply line and Mike mentioned (in the pes_flynn_pp group) putting it in the positive supply line: the bottom line I think is you use a high current diode somewhere to separate the input supply from the "supply" your setup inherently manifests.
Use fast recovery switching diodes in the above circuits that are able to recover in 20-30 nanosec time or better. One link at random is here:
Vishay - Diodes - Rectifiers - FRED Pt™

Gyula

[sciencisto]

Thank you gyula for your advices.

>> Speaking of how the recovered energy be used at the input directly, you could consider Peter's schematic shown here:
http://www.energeticforum.com/induct...html#post56075
*
I am going to try it tomorrow and see how it works.


>> Sciencisto, do not be confused that the series diode here is placed in the negative supply line
*
Of course I am not, the diode must bee there.