Hi Winsonali,
Yes dual polarity dc switching is what is normally used in "Dc transformation" situations.
Its solves many of the problems experienced with single polarity dc switching.
I like your high freq signal into a 50hz fashion. This is sometimes done in over current sensing/protection situations.

How do you do your dual polarity switching?
With a half bridge?
And if so how do you make a dual polarity power source out of normal dc?
Like for example +220v / 0v / -220v
It is not ideal but I do it like this:
http://home.planet.nl/~sintt000/HalfH.jpg
Or do you use a full bridge?

I also have a heavy duty dual polarity dc switching solution.
It has variable freq and pwm.
http://home.planet.nl/~sintt000/Driver001.jpg

Anyway I am interested in your device.
Do you intend to share the workings or do you intend to go commercial with it?
Can't wait to see your video!

---------------------------------------------------
By the way I still have 10 igbt's for sale. Anyone interested?
Type: BSM150GB120DN2
Sheet: http://www.datasheetcatalog.com/datasheets_pdf/B/S/M/1/BSM150GB120DN2.shtml
Picture: http://home.planet.nl/~sintt000/10_Igbt.jpg
Price: 35 euro each.

nali2001

i will post various versions and patents of PM used in transformers and they are failed to use the proper flux from PM
if we just try to understand where they are making misconception we can reach to conclusions.
all this for sharing knowledge and views.

for instance why this system didn't worked....image posted.

regarding commercialization of my device, yes off course i am a scientist R & D is my bread and butter and i do commercialization but at the same time i will provide information and help to people interested in replication of my work and will send them programmed IC and other required parts so they can assemble by themselves
the systems i am developing they are not home experimenting projects i have a company working and producing my other devices and selling them in local markets i don't put any information regarding sales or marketing over here in respect of forum's integrity. and also my work is to design and create products sales is not my area. 

    To Winsonali:
     I have tried to replicate the device that is in your last image, and have had no success with it.  Can you tell me why you think this device will not function as shown. 
  How can it have a patent and not work as stated in the patent?  What can be done to make it produce electricity? Any ideas are welcome.
              NickZ
     

   Winsonali:
   Thank you for your reply. I have been up many a night working on this unit, and have found it to be very sensitive magnetically to any changes and modifications.
   Although there is an additional switching circuit given as an option in the patent, I have not used it, but have tried to connect a 12v input to outer control coil direct.
   I'm hoping to find a device that will not need a signal generator, battery, or power supply etz... but will work with resonance, instead of being dependent on other external inputs to make it work.  I know I'm not the only one, but it has been impossible to find even one working device of this type. If it does not exist, we need to invent it, as we may not have the electric power grid to depend on much longer.

There has been comments on this thread stating that PPMT cannot work as a generator, which does not agree with the statements made in Flynn’s patents WO 2008/119055 and WO 2008/109834 and his two web sites. So I attempted an easy build generator replication based on PPMT technology.


PPMT1-Patent picture:  This is Figure 20 from the WO 2008/119055 patent. It is showing the flux flow of the unit when the unit has three sets of the rotor segments aligned. No power is being applied. If the rotor is turned at this point the reluctance will increase and flux will start falling in the associated cores. In the other sections the reluctance will decrease and flux will start rising in the associated cores.

PPMT1-Shaded pole motor: Fractional HP motor from bathroom vent unit. High rpm, low torque design for a 4.5 inch diameter fan. This motor increases draw wattage with an increase in load. The coil is 20 ohms. The coil section can be pulled loose from the rotor section.   

PPMT1-drawing: Shows a rough drawing of the generator concept which duplicates one section of Figure 20 patent using parts from 2 shaded pole motor. The rotor and center pieces were cut to vary the reluctance. The iron pieces on back of the magnets are used as a flux pathway, to stop any interference with the generator.

PPMT1-generator close up: This shows the assembled generator. Magnets of ½” by ¼” by 1/16” were stacked to fine tune the performance.

PPMT1-side view: This shows another shaded pole ac motor driving the generator. It does not have enough torque to self start. A manual push is required after switching on.

PPMT1-no load on coils: Shows 35 watts draw on the drive motor when both coils are open.

PPMT1-100 ohm load each coil: This shows the wave form coming from each coil with 100 ohm loads. Proves that the flux is rising and falling in each coil and they are not retaining magnetism. Still shows a 35 watt draw on the drive motor and no noticeable speed change, proving little or no lenz effect. This setup has been run up to 10 minutes with only minimum variance in Vrms, amperage or watts draw. 

PPMT1-100 ohm load each coil with ch1 display: The display, middle column, second row shows a Vrms of  3.41V for one coil and the back meter shows the ac amperage of 33.68MA for one coil. Proves it works as a generator.

Of course, the output is not very impressive, but I’m sure that it could be improved with a better rotor. The original rotor is an ac induction rotor, which has aluminum shorting bars thru the rotor. Looking at the rotor from the side that was cut, it seems to be half aluminum. A silicon steel lamination rotor would perform much better. Also, the fit between the coil core and rotor holder is a little gapped due to having to reverse its normal position. I don’t have the equipment to make a rotor with the required tolerances.

 As a comparison to the PPMT output, I ran another test on a dc motor from a 18V drill which has stronger magnets and the rotor length is 1 ½” as opposed to the 5/8” shaded pole rotor. The rotor shaft could not be turned by the shaded pole motor, so another drill was used to turn it at 1300RPM. It produced 7.5V and 7.40MA with a 100 ohm load.   


Regards, Larry   

larry C

There has been comments on this thread stating that PPMT cannot work as a generator, which does not agree with the statements made in Flynn’s patents WO 2008/119055 and WO 2008/109834 and his two web sites. So I attempted an easy build generator replication based on PPMT technology.

the setup you have shown is a mechanical setup
when i said that PPMTwill not be able to produce electricity it is in case of motionless generation

although very good attempt