Joulethief SEC exciter and variants

[xee2]

At Last - Plasma jet!!!!

Congratulations. Please give details. I am still only getting small sparks at 12 volts.

[xee2]

I wanted to test some free screen recording software

Nice video. What was the free screen recording program you used?

[seth]

Congratulations. Please give details. I am still only getting small sparks at 12 volts.

Hi!

IRF 830 seems to be working the best @12V with plasma. 530 worked for a few seconds but got very hot. 2 of my IRF 830's have blown when ive used them for longer than a few min, so they arent actually running too cool - they both had a pretty big heat sink.

The resistor seems to be very important - the more watts the better. Im using a 100 ohm resistor which judging from its size is 1W.

Lastly, the plasma jet seems to depend very much on the position of the output wire - try lots of different positions for the coil which hangs. Some positions seem to work, whereas others dont.

This thing is really temperamental - sometimes it wont work for 10 mins and i cant figure out why.....then it starts working again.

Ill put a video on soon.....

[seth]

YouTube - slayer exciter plasma jet

Thanks @ woopy!!!!!

[woopy]

Hi Seth

bravo

And now we have to find a way to better control the heat of the FET and resistor. Untill now i simply refresh the component with my barbecue blower.
But there is surely a better and smarter way to do it.

At all

any idea of what we can do with the plasmajet. (Propulsion is already tested.)

thanks

Laurent

[anonymussle]

Nice video. What was the free screen recording program you used?

It's a free screen recorder called ... "Free Screen Recorder" available from nbxsoft.com....

Also added another video for ExpressSCH on creating a custom component if anyone's interested:

Youtube - Creating a custom component video

Mussle

[Jiffycoil]

@Seth
NICE!

[DrStiffler]

Your FET Problems

Fellows if I may offer a bit of insight?

FET's, including MOSFET's etc., are voltage controlled devices, whereas a bipolar transistor is current controlled. A circuit that has just a 51ohm resistor from +V and a positive feedback from the coil will
for sure get hot and WASTE energy.

You need to look at the 'Transfer Characteristics' of the FET you are using. This graph will show you the gate voltage vs drain current curve. To operate in the linear portion you find the gate voltage for that point and instead of one resistor you use two. One from +v to gate and one from gate to source. The two resistors are selected via ohms law to present the gate the voltage across the resistor from gate to source that will place the drain current at the mid point of the curve.

The coil you all are connecting to the base in bipolar or the gate in the fet's is supplying a positive feed back to the base or gate and driving the device into saturation and heavy current and dissipation. A simple look at the graph and one calculation can save you money and it should all work just as well if not better.

Sorry for getting in the way, but I think you need a bit of help here.

[Jiffycoil]

Thank you Dr. Stiffler for the insight. I've been using the TIP31A NPN Epitaxial Silicon Transistor and I have had very minimal heating of the transistor.

[woopy]

Hi Drstiffler

Thanks for your input and good info.

So i enclose here the data sheet part of the "transfer characteristics " of . the BUZ 11.

And would you be so kind to show where i have to look in, with some practical infos to improve the unit.

And how we can correctly manage the + input to gate (or base) of the L1 coil. which seems to be very versatile with those exciters.

I am trying now to conbine different coils to get good power output.

for instance this T coil, with 2.75 watt (measured) input and almots 3.5 (lighting output)

By lighting output i mean

1 x 15 watt cfl (nominal) lets accept 15 / 10 = 1.5 watt
1X 8 watt cfl ( nominal) lets accept 8 /10 = 0.8 watt
1 X 4 wattcfl (nomoinal) lets accept 4/ 20 = 0.2 watt

total of CFL (lighting ) wattage 2.5 watt

+

3 X neon bulbs each base voltage 65 volts (up to normally230 v) at o.oo5 A
= 0.675 Watt

total wattage out = 3,17 watts


total watt in in = 6 volts at 0.4 A = 2.4 watts

and not considering the almost not touchable neon ( so hot)

so basically in = 2.4 watt

out = 3.17 watt


Any idea

good luck at all

Laurent

[DrStiffler]

Hi Drstiffler

Thanks for your input and good info.

So i enclose here the data sheet part of the "transfer characteristics " of . the BUZ 11.

And would you be so kind to show where i have to look in, with some practical infos to improve the unit.

And how we can correctly manage the + input to gate (or base) of the L1 coil. which seems to be very versatile with those exciters.

I am trying now to conbine different coils to get good power output.

for instance this T coil, with 2.75 watt (measured) input and almots 3.5 (lighting output)

By lighting output i mean

1 x 15 watt cfl (nominal) lets accept 15 / 10 = 1.5 watt
1X 8 watt cfl ( nominal) lets accept 8 /10 = 0.8 watt
1 X 4 wattcfl (nomoinal) lets accept 4/ 20 = 0.2 watt

total of CFL (lighting ) wattage 2.5 watt

+

3 X neon bulbs each base voltage 65 volts (up to normally230 v) at o.oo5 A
= 0.675 Watt

total wattage out = 3,17 watts


total watt in in = 6 volts at 0.4 A = 2.4 watts

and not considering the almost not touchable neon ( so hot)

so basically in = 2.4 watt

out = 3.17 watt


Any idea

good luck at all

Laurent

@Laurent
Well first I had no idea what the BUZ11 was until I looked it up and I will say there must be better choices for this application as the BUZ11 is a power unit
and is for high current application at voltages less than 50 volts. Really with these big coils and the flyback pulses I can not see even how the work at all.
Anyway I will show you a few things.

First the neon's and the power in them. Neon's have a history of being used as voltage regulators and as such maintain the voltage drop as determined by the gas and the gas pressure and the electrode space. Now a neon with a 65V drop will always be 65V unless and will arc over if you push it. If this happens you will get damaged electrodes and a black inner glass. Therefore you can not 230V times 5mA, you would need to assume 65V and a varying current.

You can not assume anything about the CFL's unless you compare Lumens to Lumens when you have a reference.

The BUZ11 is hard to bias for low currents (less than amps), so from the transfer curve the best I can do for an explanation is assume something under an amp as the curve is not good here (power NMOS).

You should understand from the image I have included and the curve what I was talking about. Th sample assumes Class A.

Normally I don't design for other application, but in this case it is to help all that have stopped using the SEC acronym.

[Jiffycoil]

Thank you Dr. Stiffler. It is an honor to have you share your knowledge and time with us.

[totoalas]

Plasma jet UV lamp booster

[IMG][IMG=http://img186.imageshack.us/img186/5743/chinaplasmatester003.jpg][/IMG] Uploaded with ImageShack.us[/IMG]

Hi Seth

any idea of what we can do with the plasmajet. (Propulsion is already tested.)

thanks

Laurent

Seth and Woopy
Great results
The question is how to measure the arc amps and light intensity of lamps used
Attached is a Chinese made arc (2mm) lamp tester[IMG][IMG=http://img826.imageshack.us/img826/6109/chinaplasmatester002.jpg][/IMG] Uploaded with ImageShack.us[/IMG]4 aa in series) lighting up an 18W UV lamp
If only we can adopt Slayers low amp high output with an aa or a cellphone charger then we can have a portable uv disinfection for the third world
If a car can drive up to 90 kms/liter of gas so can the slayer circuit
cheers
totoalas

[seth]

instead of one resistor you use two. One from +v to gate and one from gate to source. The two resistors are selected via ohms law to present the gate the voltage across the resistor from gate to source that will place the drain current at the mid point of the curve.

The coil you all are connecting to the base in bipolar or the gate in the fet's is supplying a positive feed back to the base or gate and driving the device into saturation and heavy current and dissipation. A simple look at the graph and one calculation can save you money and it should all work just as well if not better.

Sorry for getting in the way, but I think you need a bit of help here.

Hi Stiffler!

You certainly arent getting in the way Surely we need words of wisdom from experienced folks like yourself.

Sadly I only understand the sentence ''use 2 resistors'' and i understand where you want me to put them - as such i will give this a go with various resistors, and hope for good results. Try anything and everything is my motto.

This is just my hobby - i have many others, but electrical skullduggery has become my favourite recently. I have little understanding of some concepts - transistors are a real problem for me (in their mechanism) though the simple stuff like motors/resistors/capacitors/batteries i understand. I'd be really grateful if someone could point me to a good link which explains transistors to a wally like me.... i tried the Bill Beaty site as i like the way he writes.....but i still have many questions.

Im just here to prove that even a man like me with very little expeience and education in electronics can still build this stuff with the help of a forum like this.

Getting your hands dirty sure beats reading various stories about this chap or that chap who may have had a free energy machine. If its possible, why read about it when you can build it? (and the jury is still out for me on this one) But stranger things have happened.....

[DrStiffler]

Hi Stiffler!

You certainly arent getting in the way Surely we need words of wisdom from experienced folks like yourself.

Sadly I only understand the sentence ''use 2 resistors'' and i understand where you want me to put them - as such i will give this a go with various resistors, and hope for good results. Try anything and everything is my motto.

This is just my hobby - i have many others, but electrical skullduggery has become my favourite recently. I have little understanding of some concepts - transistors are a real problem for me (in their mechanism) though the simple stuff like motors/resistors/capacitors/batteries i understand. I'd be really grateful if someone could point me to a good link which explains transistors to a wally like me.... i tried the Bill Beaty site as i like the way he writes.....but i still have many questions.

Im just here to prove that even a man like me with very little expeience and education in electronics can still build this stuff with the help of a forum like this.

Getting your hands dirty sure beats reading various stories about this chap or that chap who may have had a free energy machine. If its possible, why read about it when you can build it? (and the jury is still out for me on this one) But stranger things have happened.....

@seth

Hi Stiffler!

Ok that is a good start....

Don't take my illustration as something you want to implement verbatim. I was only showing a voltage divider and how to go about it for a FET to bias the gate at a particular set point. My example also stated for 'Class A' operation and my example will not do that as the point I indicated is hypothetical as the transfer curve in this area for this power NMOS is far from linear at the point I indicate.

Also I think you know that the same approach is not valid for a bipolar, as the bipolar is current driven and the BE junction must be included in the set point for obtaining the current.

This is precisely why I hesitate to offer this type of assistance, it leads to question after question and I would have to fully design and specify a circuit as the general knowledge varies so much, what one understands the next person does not.

Yes' Bill B in the past has had some good info out there. I have not seem his site for a few years now, but if you can find it, look for the paper he did on 'The Energy Sucking Antenna'.