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Overunity Machines Forum



Selfrunning Free Energy devices up to 5 KW from Tariel Kapanadze

Started by Pirate88179, June 27, 2009, 04:41:28 AM

Previous topic - Next topic

0 Members and 163 Guests are viewing this topic.

xenomorphlabs

Quote from: nievesoliveras on July 28, 2009, 10:05:25 PM
By the way what is an HF inductive throtle?

My bad, i meant an RF choke (choke coil) or a power supply filter to filter out RF that would be fed back into the powerline. The supply diode should already help, just look at it as irrelevant for now.

nievesoliveras

Quote from: xenomorphlabs on July 28, 2009, 10:31:21 PM
My bad, i meant an RF choke (choke coil) or a power supply filter to filter out RF that would be fed back into the powerline. The supply diode should already help, just look at it as irrelevant for now.

Thank you @xenomorphlab !

Jesus

hartiberlin

Hi Jesus,
if you switch a coil via a transistor or MOSFET or other
electronic component you have to take care about the
BackEMF voltage of the coil,
when the transistor or MOSFET is switching off the circuit.

So you need a freewheel diode or a cap in parallel with the
coil, otherwise it will kill your electronic switch.

Better use a cap in this circuit and use a transistor or MOSFET
that can stand the high ringing voltage from the BACKEMF.

A freewheel diode will just kill the BACKEMF into heat and
will not have the ringing, that might be important over here
to energize the seondary transformer coil for higher output.

Pay attention, some MOSFETS and Power Transistors
already have a build in freewheel diode, so these
would probaly be not to good to use..

But never use just a coil alone without the cap !

Regards, Stefan.
P.S: I think it is much more important first to have
a good 50 or 60 Hz resonator circuit.
Stefan Hartmann, Moderator of the overunity.com forum

Yucca

Hi All,

Up until now I have been driving my flyback using a pulse circuit driving a FET, this has been terrible, blowing FETs despite protection and sometimes blowing other ICs too.

I believe I have found the perfect single transistor drive method, It is basically a Joule Thief, using two primary coils in the flyback, this site has a great tutorial:

http://www.angelfire.com/80s/sixmhz/flyback.html

I have built this driver using a 13005 power transistor, not all transistors are suited, you need a transistor designed for inductive switching, the 13005 works great!

I also swapped the resistors for a 1k Ohm and a 100 Ohm (0.25 Watt), the suggested ones were getting too hot at 12V input.

NOTES:
In the picture below of my driver the toroid is a twin choke on one core to stop high frequencies getting back to the PSU, it is not a Joule thief or anything like that, it's just for filtering, also the blue capacitor is across the PSU input for further filtering. Before I added these components my PSU digital readout was going haywire!

The LED is just fed with 470 Ohm resistor and it just shows when the input power is on.

Anyway the bare bones circuit is 1 transistor and 2 resistors and I can only recommend it, the transistor runs as cool as a cucumber and I get good strong HV output.

Yucca

Here it is running on 8V at 250mA, the camera flash makes the spark seem weaker than it is. I will be wiring neatly and mounting on a self contained wooden board tomorrow.