Joulethief SEC exciter and variants

[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

[Jiffycoil]

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

[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.

[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

[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.

[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]

@Seth
NICE!

[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

[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

[seth]

YouTube - slayer exciter plasma jet

Thanks @ woopy!!!!!

[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.....

[xee2]

I wanted to test some free screen recording software

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

[xee2]

At Last - Plasma jet!!!!

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

[anut]

All the credits should go to Nikola Tesla, Stanislav and Konstantin Avramenko. All our designs are more or less based on their inventions.

Visit the wireless energy transfer group or other similar groups in Yahoo. You would be surprised to learn how early this topic was discussed.

[DrStiffler]

I believe Dr. Stiffler used this same circuit years ago which he called it the Thompson? Thomas? oscillator - I'm not sure exactly but it is on his site.

I found it a bit confusing as well as I learned about it originally as the "kacher" from a Russian site. So in reality it's been tossed around a bit from it's origin, renamed and refitted. Don't know who gets the credit for it but it's an amazing little circuit. Only second to the Doc's SEC units though, a truly amazing piece of work !

@dragon

I need to set the record straight as your comment needs some clarification. I always want to give credit to whomever deserves it so where you stated I may have called it the 'Thomas Oscillator', this is not true. The Thomas Oscillator is a creation of Ben Thomas K4ZEP who has posted on this forum and many others. Ben worked off and on with me until we had a falling out (see I am hard to work with). Anyway Ben did some great research and is a superb technician. Okay that's that...