Kapanadze Cousin - DALLY FREE ENERGY

[andrea76]

http://www.liveinternet.ru/users/edward_lee/post237839624/

[stivep]

https://www.youtube.com/watch?v=OhJYDTGCoLs&feature=youtu.be


Leader Genie#2








Wesley

[itsu]

Square wave?  nano second pulser?    Like T1000 already mentioned; i don´t think so.

My system:

input: 24V dc  2A limited
Mazilli circuit
Main coil 2 x 5 turns od 12.5cm total 19uH (2.5mm2 wire)
small coil 80 turns (2x 40) od 5cm 75uH (2.5mm2 wire)

Mazilli circuit capacitor used:

first 1.1uF (2x 2.2uF in series)   = resonance frequency 35KHz and nice sine wave signal  (caps getting hot!)
then  784nF (680 + 104nF parallel) = resonance frequency 42khZ and again nice sine wave (caps not getting hot).

Small coil (75uH) capacitor used (with bulb 220V / 60W):
first no cap, frequency 42 KHz, almost no light, input current 800mA.
then  224nF, frequency of the whole system increases from 42 to 45KHz, no visible increase in light, current input goes from 800mA to 900mA.
then  104nF, frequency of the whole system decreases from 42 to 37KHz, increase in light, current input goes from 800mA to 2A (limited), cap is getting hot!

Video here:  https://www.youtube.com/watch?v=2HUrNDdHyKY&feature=youtu.be

Question:  why do the caps getting hot in those circumstances? Both are rated to handle the voltages (400 / 630V)

Regards Itsu

[d3x0r]

Ya looks more like a royer to me too....and that is far from a square wave...
yes I realize it's a rat's nest   (but come to think of it it's an inventory of all the missing clipleads that seem to have evaporated)


nov, 2013
https://www.youtube.com/watch?v=a-jnlwkq3O4
same driver, different pickup coil https://www.youtube.com/watch?v=8xb8Snt1UI8
removed core... replaced with just an 110VAC input LED floorlamp... https://www.youtube.com/watch?v=vAJYLTFiUeU 


Attached oscillator used... just a simple mazzilli...

[magpwr]

Square wave?  nano second pulser?    Like T1000 already mentioned; i don´t think so.

My system:

input: 24V dc  2A limited
Mazilli circuit
Main coil 2 x 5 turns od 12.5cm total 19uH (2.5mm2 wire)
small coil 80 turns (2x 40) od 5cm 75uH (2.5mm2 wire)

Mazilli circuit capacitor used:

first 1.1uF (2x 2.2uF in series)   = resonance frequency 35KHz and nice sign wave signal  (caps getting hot!)
then  784nF (680 + 104nF parallel) = resonance frequency 42khZ and again nice sign wave (caps not getting hot).

Small coil (75uH) capacitor used (with bulb 220V / 60W):
first no cap, frequency 42 KHz, almost no light, input current 800mA.
then  224nF, frequency of the whole system increases from 42 to 45KHz, no visible increase in light, current input goes from 800mA to 900mA.
then  104nF, frequency of the whole system decreases from 42 to 37KHz, increase in light, current input goes from 800mA to 2A (limited), cap is getting hot!

Video here:  https://www.youtube.com/watch?v=2HUrNDdHyKY&feature=youtu.be

Question:  why do the caps getting hot in those circumstances? Both are rated to handle the voltages (400 / 630V)

Regards Itsu

hi itsu,

The capacitor you are using is a "Metalized Polyester Film Capacitor" with rated value as labelled on capacitor nothing looks unusual in this area.

However the primary reason why these type of capacitors are never used in the actual induction heater 1000...2000watt cooker is because the capacitor "internal resistance is higher".
It is not fabricated to handle "high Amps".I have used actual "induction heater capacitors" find that those are better for the job but typical come in common range like 0.2uf...0.33uf 275A/c.

I am merely suspecting the device creator is likely using IGBT with a "lower gate capacitance" if you compared the mosfet you using against another types via datasheet.
The switching frequency might be impacted because of the gate capacitance.

I agree certain type of L/C meter can't display any value below 1 or 2uH.

This is the cheap precision L/C meter that i'm using which can display just below 1uH.For measuring inductance both probe needs to shorted together beforehand and Zero button needs to be press until OK is display on screen.
That this point the L/C meter is calibrated while it is powered on by 4xAA.

For capacitor both probe needs to be unconnected as it is and press OK to calibrate meter once it's is powered on.


http://www.ebay.com/itm/1pcs-New-L-C-Inductance-Capacitance-Multimeter-Meter-LC200A-Tool-lm-/291099820083?pt=LH_DefaultDomain_0&hash=item43c6e6c033


Interesting outcome 300vpp under bulb load and power consume is 19.5voltx2Amps =39watt(Very interesting finding.Not in resonance to achieve higher peak to peak output voltage under load )