Skycollection's "Pentafilar Pancake" inductively coupled "Overunity Potential".

[gyulasun]

Hi Jorge,

The transistors you use in the circuit have 250 V breakdown collector-emitter voltage ratings and you can still use them at 24 V DC input.  In the video the neon bulbs are lit and vividly flickering, this means they limit the collector-emitter peak voltage at about 80 - 90 V, this will be so at 24 V too.  This peak voltage comes from the inductive kickback of the coils when they are switched off as you know.  Of course when you charge a battery from the BEMF output, the peak voltage reduces to nearly as low as this battery voltage and the peak current does the charging. 

You can use the same circuit, I suggest replacing the 1 kOhm emitter resistor to a 2 k or 2.2 k resistor, see attachment. The 1 kOhm may remain too but no need for driving the npn transistor too hard via the pnp. 
You wrote 4007 type diode for the BEMF, if you had 1N4007 type already, then it is better to use a fast switching type instead, like UF4007 which is also 1000V, 1 Amper rated but much faster than the 1N4007. The 1N4007 will also work like before but it introduces some percentage loss from the total BEMF energy like before i.e. at either the 12 or 24 V input.

I indicated a resistor R_L across the BEMF output,  use a few kOhm resistor to load the output when you run the setup without not charging any battery or not using say a LED bulb as the load for the BEMF.
The electrolytic capacitor, 2200 uF, should be at least 36 V rated type, you know this too. 

Gyula 

Hello i am skycollection from Mexico, Jorge Rebolledo, i have a problem and i hope someone can help me:
In 2012 i made a design of CIRCUIT CONTROLER for 12 volts, this is the video:
https://www.youtube.com/watch?v=ljtcDeCQUCo
This circuit is for 12 volts, but i need for more volts, for example 18 or 24 volts IN, does anybody can tell me what to do in the circuit and protect the transistor when i power IN with 24 volts for example?
thanks for your help.

[skycollection 1]

Gyula, absolutely grateful to you for your quick response, I really appreciate your help since I did not study electronics, (I am learning something) I am going to change the 1K resistance for a 2.2 K one and i will do the test, the BEMF I really am not using since my coils are BIFILAR and these capture the induction currents to charge batteries, with a diode rectifier and a capacitor as rectified output current.
Greetings and thanks

[gyulasun]

Jorge,  to be on the safe side, if you do not use the BEMF, then just load its output by say a 4.7 kOhm resistor to dissipate the kickback pulse energy.  With 24 V input the BEMF energy will also be higher and the neon bulb may get overloaded on the long run. 

You wrote:

....       the BEMF I really am not using since my coils are BIFILAR and these capture the induction currents to charge batteries, with a diode rectifier and a capacitor as rectified output current.

Your schematic in the video did not include any charging batteries from the BEMF but it is okay if you really want to charge batteries from the BEMF output because in this case no damage may happen due to the higher kickback spikes at 24 V input.


Gyula

[skycollection 1]

Thanks for replay, and is correct in the diagram i have no a battery chrger because i don´t use the BEMF, now the "D" coil is BIFILAR and one coil is connected to the circuit and the other coil have a rectifier diode with a capacitor, and in this way i am charging batteries.

[Jo-EL]

Thanks for replay, and is correct in the diagram i have no a battery chrger because i don´t use the BEMF, now the "D" coil is BIFILAR and one coil is connected to the circuit and the other coil have a rectifier diode with a capacitor, and in this way i am charging batteries.

Hello skycolletion 1, hola skycollection 1,

can you say whats the results of your circuit, it has a COP >, <  or = 1 ?

have it been running a long time ?

Yo te escribio un PN ( mensaje privado )


Jo