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Author Topic: Akula0083 30 Watt Self Running Generator.  (Read 1269877 times)

MenofFather

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #300 on: March 15, 2014, 07:48:41 PM »
Good idea.. perhaps one LED for visual reference (and doubles as a diode) and a resistor in series (which also current limiting so you don't blow up you LED).
No. Resistor R5 is not for curent limiting, but for making feedback  with capasitor C5 to R7 resistor and TL.

4Tesla

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #301 on: March 15, 2014, 07:52:15 PM »
Actually, if it self runs, measuring power to confirm overunity is a moot point. Not that measuring output power is not an important thing, to know the real capabilities of the circuit and to try a scaling up of the output power.

Cheers,

Black Bird

I don't think he said anything about confirming OU.. just easier to make measurements, which is what he and others likes to do.

4Tesla

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #302 on: March 15, 2014, 07:54:35 PM »
No. Resistor R5 is not for curent limiting, but for making feedback  with capasitor C5 to R7 resistor and TL.

Thanks.  We weren't talking about R5.

Hoppy

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #303 on: March 15, 2014, 07:56:45 PM »
This the place to share anything that you think will help others getting a working device.  Whether it is a fact, a schematic, a quote, a video, or opinion.

Don't forget an appropriately rated fuse, especially if powered directly from a battery.

From other Planet

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #304 on: March 15, 2014, 08:03:44 PM »
Welcome to club forest! I also just 2 times made a big smoke cloud and now my MosfetPulse Board and TL494 based frequency generator passed away. F*** i still needed it for my first akula device replica and other projects.

 >:( >:( >:( :( :( :( :( :( :'( :'( :'( :'( :'( :'( :'( :'( :'(

Grumage

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #305 on: March 15, 2014, 08:21:22 PM »
Don't forget an appropriately rated fuse, especially if powered directly from a battery.

Good evening Hoppy.

It appears that your advice was perhaps a little too late for dear From other Planet !!

However we need to find out what is basically overloading the drive circuit ?? We now have got two prototypes that have burned out. Do we have, dare I say OVERUNITY ?? A rising out of control event ??
A scope would be of great help whilst testing this circuit so a runaway could be avoided.

Keep up the great work Guy's !!

Cheers Grum.

4Tesla

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #306 on: March 15, 2014, 08:44:00 PM »
Hi all,

I've been studying the 494 IC.  Here is a link to the datasheet.
http://www.alldatasheet.com/datasheet-pdf/pdf/28827/TI/TL494IN.html

Grumage

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #307 on: March 15, 2014, 09:06:47 PM »
Dear All.

Short video showing how the manipulation of the air gap alters the output waveform.

https://www.youtube.com/watch?v=u2ThpfhQqTQ

Let's see if we can improve to a ring up ??

Cheers Grum.

bolt

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #308 on: March 15, 2014, 09:39:41 PM »
.

MenofFather

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #309 on: March 15, 2014, 09:49:08 PM »
Then I maked this divice for me burned many shotkys and not shotkyes diodes who in schematic is MBR, but I use others. Nothing other are burned. I burn about 5-7 in that places diodes. :D Burn and UF5404, who 400 volts and if good remeber UF5408, who 1000 volts, then ajusting, maybe, in small frenquency. So can bay many shotkeys diodes 10 amps 35-50 volts.

MenofFather

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #310 on: March 15, 2014, 09:53:11 PM »
This circuit is nothing special.  You can achieve the same thing using signal generators. See WESLY experiments on his 1kw Yoke device. ...
I Bealive that here no 1 kw. I see that video and that lamp Weshley say in full brightness, but i see, that it light on about 5 procents of it power. So I not bealive, that they get free energy. Maybe get, but wery small amout of it.

bolt

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #311 on: March 15, 2014, 10:03:56 PM »
This circuit is nothing special.  You can achieve the same thing using signal generators. See WESLY experiments on his 1kw Yoke device. All the answers fully disclosed now couple of years at least public domain.  Instead of push pull discrete fet driver use dedicated IC fet driver instead. A full H bridge design is superior to get max power and symmetry into driver stage.  If you have RF sig gens you can make tests using these with a wideband PA fet amplifier as a core driver.

This is a ferrite banging device requires ferrite yoke, rings, cores, slugs or anything else to forced into a piezo electric state where ferrite becomes a "SQUEELING  PIG!  You need to drive the core into full magnetic saturation then make sure the ferrite is gapped to make ASYMETRIC transformer.  Use a paper shim.  Be careful as you must drive the ferrite hard couple of amps 20 or 30 watts or more. You will hear sweet spot when tuned when ferrite goes critical! CAUTION! FERRITE CORES CAN EXPLODE UNDER SUCH CONDITIONS. Cores will get hot.  Ferrite will burst with harmonics in this state going into lots of Mhz.  Panasonic microwave oven cores are good can be driven with couple hundred watts. When you can hear the cores SCREAM you are then in the ballpark of going OU.  The load must be matched. Impeadance not too low or too high.   Random tuning and tickling these cores with milliwats or shit driver will get you no where.  You dont have to use LED lights.  Halogen can work but of course LED is of course MUCH brighter.

The only real design work is finding the best coil winding solution to match YOUR cores to YOUR load. Everyone will be different.

Hoppy

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #312 on: March 15, 2014, 10:42:53 PM »
This circuit is nothing special.  You can achieve the same thing using signal generators. See WESLY experiments on his 1kw Yoke device. All the answers fully disclosed now couple of years at least public domain.  Instead of push pull discrete fet driver use dedicated IC fet driver instead. A full H bridge design is superior to get max power and symmetry into driver stage.  If you have RF sig gens you can make tests using these with a wideband PA fet amplifier as a core driver.

This is a ferrite banging device requires ferrite yoke, rings, cores, slugs or anything else to forced into a piezo electric state where ferrite becomes a "SQUEELING  PIG!  You need to drive the core into full magnetic saturation then make sure the ferrite is gapped to make ASYMETRIC transformer.  Use a paper shim.  Be careful as you must drive the ferrite hard couple of amps 20 or 30 watts or more. You will hear sweet spot when tuned when ferrite goes critical! CAUTION! FERRITE CORES CAN EXPLODE UNDER SUCH CONDITIONS. Cores will get hot.  Ferrite will burst with harmonics in this state going into lots of Mhz.  Panasonic microwave oven cores are good can be driven with couple hundred watts. When you can hear the cores SCREAM you are then in the ballpark of going OU.  The load must be matched. Impeadance not too low or too high.   Random tuning and tickling these cores with milliwats or shit driver will get you no where.  You dont have to use LED lights.  Halogen can work but of course LED is of course MUCH brighter.

The only real design work is finding the best coil winding solution to match YOUR cores to YOUR load. Everyone will be different.

Good post. I've experimented 'bashing' different types of ferrite in the past using a PWM 150A, full H-Bridge motor controller modified from a fixed 25KHz to variable frequency control. However, be very careful as this type of experimentation can be dangerous! Wear eye protection and use a polycarbonate screen between you and the DUT. Getting conclusive results is difficult. Bolt is correct IMO when he says that tickling your ferrite will lead nowhere.

4Tesla

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #313 on: March 16, 2014, 08:15:47 AM »
Don't forget an appropriately rated fuse, especially if powered directly from a battery.

A 3 amp breaker or inline fuse is a good idea.  I calculate 3 amps.. I think correct.

Maybe something like this..

http://greatlakesskipper.com/carling-3-amp-push-to-reset-boat-breaker-w-boot?gclid=CPXF6YPAlr0CFaw-Mgodml4AqQ

4Tesla

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Re: Akula0083 30 Watt Self Running Generator.
« Reply #314 on: March 16, 2014, 08:35:05 AM »
Second video from the same author was published. He has intergrated the circuit in the portable LED Spotlight. He says that this circuit works ONLY with LEDs. He also shows how the core of the transformer must look like.

Video 1:
http://www.youtube.com/watch?v=OOG6YQ_6K6k

Video 2:
http://www.youtube.com/watch?v=Vpwm2-eJiiM

Here is the 12v 10w flood light used in the second video.  I wish he would have shown inside black box to show no battery.

http://www.parts-express.com/portable-10w-cob-type-super-bright-led-work-light-rechargeable-flood-light-lamp-yellow--361-361