Kapanadze Cousin - DALLY FREE ENERGY

[Hoppy]

"K" is the first letter of the russian word "ring" or "circle", which in this context means a toroidal shape.
The three delimited numbers appearing after the "K" most likely are the toroid's dimensions in millimeters.
The M3000HM most likely is a ferrite material designation. Maybe the numeral "3000" even means, that the relative magnetic permeability of the ferrite is 3000.
Actually, at 1m36s of this video, Dally says that his scheme requires minimum of 120V to function.

I have established that 'M3000' denotes Manganese - Zinc composition with a very high relative permeability of 3000 and high Q, 1KHz to 1MHz. The small EMI reduction toroids found in low energy lamps are of the powdered iron type, typically green or black colour coded. These have a low permeability (green = 75, black = 6).

It is therefore important to source the correct type as the permeability range is huge across the various compositions. Itsu reports that he has ordered the specified type, so it will be interesting to see his results.

Regards
Hoppy

[verpies]

OD = 10 mm
ID = 6 mm
TH = 3 mm

W 1 = 3 turns = 9.8uH
W 2 = 10 turns -104,5 uH

Using the formula for the relative permeability of a toroidal inductor with rectangular crossection: μ_r = L / (0.0002 * TH * N² * ln(OD/ID) ) and the formula for the AL Value as A_L = L / N² , now we have:

Who         Turns   OD [mm]    ID [mm]    TH [mm]          L [μH]           c_r       A_L [μH/N²]     Saturation Current [A]
---------------------------------------------------------------------------------------------------------------------------------------------
Hoppy           6           11.0            5.0             4.0         88.000       3875          2.444                      ? ? ?
Hoppy         12           11.0            5.0             4.0       312.000       3435          2.167                      ? ? ?
Black_Bird   10             2.0            4.5             4.0           3.500           45          0.035                      ? ? ?
Black_Bird     8           10.0            5.0             5.0       220.000       4959          3.438                      ? ? ?
Black_Bird   16           10.0            5.0             5.0       870.000       4903          3.398                      ? ? ?
Itsu               6           16.6            9.4             6.9       173.000       6123          4.806                      ? ? ?
Itsu             12           16.6            9.4             6.9       669.000       5920          4.646                      ? ? ?
madsatbg     3           10.0            6.0             3.0           9.800       3553          1.089                      ? ? ?
madsatbg   10           10.0            6.0             3.0       104.500       3410          1.045                      ? ? ?
madsatbg     3           14.0            7.0             3.0         24.950       6666          2.772                      ? ? ?
madsatbg   10           14.0            7.0             3.0       236.300       5682          2.363                      ? ? ?

Also, madsatbg's inductance meter seems to be adding only 435nH to his inductance measurements.
If we subtract 435nH from two of his 10mm toroid inductance measurements, then we obtain the relative permeability of his core μ_r  = 3395 for both 3 and 10 turns.

Thus, madsatbg has the highest accuracy of inductance measurements, seen here so far.

In case of madsatbg's 14mm toroid his inductance meter seems to be adding over 4μH to his inductance measurements.
If we subtract 4.05μH from two of his 14mm toroid inductance measurements, then we obtain the relative permeability of his core μ_r  = 5584 for both 3 and 10 turns.

[Black_Bird]

@verpies

Just to update your toroid table, I have a new toroid OD= 10 mm ID= 5 mm H= 5 mm, primary 8 turns, secondary 16 turns, AL= 3.42uH/ turns2, ur= 4940. Primary inductance 220uH Secondary 870 uH, measured by resonance.

[verpies]

@Black_Bird
OK. I updated the table above with your new data.
Your inductance measurement inaccuracy seems to be +3350nH and if that much is subtracted from both of your measurements than your μ_r = 4884 and A_L = 3385nH/N² , in both cases.

[madsatbg]

Hi,
new one pulse transformer :


OD = 14 mm
ID = 7 mm
TH = 3 mm
W1 = 3 turns = 24.95 uH
W2 = 10 turns = 236.3 uH

color is green, old one is balck