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196  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: June 27, 2010, 11:20:23 am
Special plasma HV topology using timer3 (ch B and C) and timer4 (ch B and C) of Atmega and SerPro designed by Alvaro Lopes
197  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: December 15, 2009, 10:03:18 pm
thank you designer2k2 for your nice comment.

I'm discovering digital video filming so i'm not really good in making nice videos so my videos do not render the beauty of eye of the storm plasma.

My YT channel aims to be a tutorial Tabout plasma engineering but also Back-EMF stealing management (coming soon) in the legacy of Nikola Tesla.
198  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: December 15, 2009, 04:24:21 pm
Yes France sucks for this... hobbiest can't buy critical electronic components anymore.
I bought them in US from
199  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: December 14, 2009, 09:58:41 pm
Hi Kas,

Thank you for your interest on my channel.

In video #7, I use 4N25 opto-coupler along with IRF840 without any driver between arduino & 4N25 but also not fet driver between 4N25 & IRF840. It is a cheap solution but depending on your application can be a problem where you'll not go high in frequency control or low duty cycle of plasma resonance due to intermodulation.

This is why I worked with my team partners Dan & Raivo to build one of the fastest ZPE driver I know of based on IL610 + MCP1403 + IRF540 or IRF840 that you see runing on video #8. This saves the component count on PCB and makes sure to have extreme pwoer PWM signals driving the coils & transformers which is required to pump ZPE energy. You can also replace MCP1403 by TC4423 or MC34151 which are excellent but a bit slower.

As for logic level mosfet, it will not work & might be even worse than 4N25 + IRF840 due to bandwith consideration.

Now, if your intent is to just make plasma globe for fun, no problem use logic level fet along with isolator but if your intent is to make Zero Point Energy devices, it is based on special oscillator requiring sharp pulsed signals hence no choice than to invest into serious isol-fet drivers.

200  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: November 28, 2009, 05:44:47 am
For those interested on borderline physics and electronics controlled by arduino, please watch my new video Part 8 on
201  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: November 25, 2009, 11:34:51 pm
I suggest you also remove this comment on your spreadsheet
* functions not implemented on version 0015
as well as the * in front of pins 44,45 & 46
202  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: November 25, 2009, 09:47:27 pm
Hey mem, as I reported to you on another thread, timer5 fully works (pin 44, 45 & 46) with arduino 15 version.

As I also reported, you can use timer1 fully hence pins 11, 12 and 13 (T1C) if you do not use T0A from timer0 without corrupting millis() and micros(). The only problem would be a bandwith issue since pin 13 has a LED in serie but this electronic issue, not software timer issue!

I'm using all these features everyday in my little lab using mega board and version 15.
203  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: November 25, 2009, 06:08:52 am
I use for my ZPE lab both duamilanove and mega.

The mega code I gave you works also on duamilanove except you have to change pin allocation and timer allocation.

Please read this excellent & very helpful document for correct pins and timers assignment.
204  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: November 24, 2009, 09:54:12 pm
I have seen the 7 videos; You really should build a web site, I strongly suspect that, beyond plasma technology, you have a lot of other ideas to share
Indeed I do have much more ideas and practical experiences to share but all this can be dangerous because quantum electrodynamics engineering aka Zero Point Energy engineering is connected with bio-energy.

I for one would like to know more about what that coil is doing and where the commutator fits in . Can you elaborate with perhaps a short summary of what I am looking at on your video . Assume (correctly) that I have no knowledge of the devices or theories shown  
That is my plan but i still have not figure out what media is best, I started to write a book, I also have a private blog with much more details than I share on my YouTube channel. Maybe things should clear up with my real soon Part 8 video. My ovreall plan is to make very simple ZPE devices than anybody can reproduce which is why I elected arduino and right now learning java programming for the computer interface wether Mac, PC or Linux.

What I can tell you is such tech is related to non-linear oscillators with shuttling circuits which means new type of electronics & electro-magnetic circuits than can also be considered as parametric oscillators. Plasma or a coil are pushed to limits where they become non-linear but also with hysteris properties then you use these facts to bring stochastic resonance or entrainment in order to extract Free energy.

P.S. The mosfet commutator fits in the primary winding of the high voltage transformer.

Would you please let us have a relevant Arduino code snipet for the PWM management ??
In Part 7, I use this core code which consist to generate PWM by sofwtare
#define CPU_CLOCK 16000000.0
#define OVERHEAD_OUT 2.0 // 2 cycle to set ON or OFF the port driving MOSFET
#define OVERHEAD_LOOP 4.0 // 4 cycles to each iteration of delay_loop_2
#define OVERHEAD_USB_WHILE 5.0 // 3 cycles for USB RX check and 2 cycles for each while(true)

int duty_charge_on, charge_on, charge_off;
long freq;
int outputPin5 = 5;   // PORTE - Pin #3
float fperiod, fduty;

void setup()
  pinMode(outputPin5, OUTPUT);

  freq=30000; // 30KHz scenario
  duty_charge_on=10; // 10%

  fperiod=CPU_CLOCK / float(freq * 100);

  fduty = (fduty - OVERHEAD_OUT) / OVERHEAD_LOOP;

  fduty=fperiod*float(100 - duty_charge_on);

void loop()
  cli(); // turn off interrupts

  while (true) { // start critical loop
// Turns ON coil charging opto-coupler #1
    PORTE |= B1000;

// Turns OFF coil charging opto-coupler #1
    PORTE &= B11110111;

// check usb port and if there is data.  Break out of loop to handle it
   if (UCSR0A & _BV(RXC0)) break;
  } // end of time critical loop

  sei();  // interrupts back on

// gets new parameter from USB Serial Monitor connected to Macintosh then update on board
In approximation an dfor low frequencies PWM, you have Frequency=16MHz/4/(charge_on+charge_off) and Duty cycle=charge_on/(charge_on+charge_off)

My new code which will be published on YouTube Part 8 is using arduino Timers to generate PWM
int outputPsuB = 45;  // Timer5-B

void setup()
// PSU outputs via timer5
  pinMode(outputPsuB, OUTPUT);  // select Pin as ch-B

  TCCR5A = B00100011; // Phase correct PWM change at OCR5A
  TCCR5B = B10001;  // no prescaling the system clock
  OCR5A = 260; // 30769 Hz
  OCR5B = 26; // 10% PWM

void loop()
// check usb port and if there is data then gets new parameter to update on board
   if (UCSR0A & _BV(RXC0)) change_param();
Change OCR5A and/or TCCR5A and/or TCCR5B to get other frequency=16MHz/2/prescaling/OCR5A
Change OCR5B to change duty cycle = OCR5B/OCR5A

205  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: November 24, 2009, 12:32:12 pm
Would you care sharing with us the basics for producing the adequate signal to feed a small plasma ball, from an Arduino ?
No problem but have in mind this requires you have some good basics on high voltage safety & circuits.

Basically, just buy a plasma globe then deconstruct it fully to only keep the globe and its high voltage transformer. Then connect to the primary winding a mosfet which will be controlled by PWM signal generated by arduino. The trick is to control pulse length, frequency of pulse length and voltage which is almost never done by industry hence missing incredible applications for our society.

Any pointer to a Web site ??
Well, I had to train myself hard on this domain because not too much info about this so far which is why I started my YouTube channel plus also a private blog.

A simple circuit with only one mosfet should be adequate
I shall publish real soon a very fast version on YouTube but you can start with the slow version circuit I'm using on Part 7 based on 4N25 opto-coupler, 100R, 10K and mosfet IRF840.

Do we really need opto's for such a small device ??
Of course you do: just put you finger on high voltage winding while PWM pulsing the primary winding smiley-wink then imagine for some reason HV does not get to the globe in order to produce plasma, you might have HV skipping to primary winding and if for some reason mosfet gets destroyed it will goes direct to arduino then via USB to PC or Mac smiley-sad

206  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: October 27, 2009, 01:32:08 am
Here I thought that energy could be neither *created* nor destroyed.
it is true energy cannot be created or destroyed.
But it is possible to use existing energy infinitesimally without conversion.
Yes, energy cannot be created or destroyed. The situation with science seems to be an incapacity of measuring all energies in our Universe hence creates an issue with conservation of energy's law. Some specific lab experiments breaks conservation of energy due to wrong modelling of input & output energies. This does not mean one should give up conservation of energy but only indicates that the actual model describing all available energies in nature is partially wrong.

Another aspect seems to be an incorrect understanding or realization of specific energy transformation, in particular between invisible and visible energies to compute correctly the overall energies at stake. Now, be careful to consider global conservation of energy versus local non-conservation of energy under specific experiments. There are specific techniques to create this local stress in order to succesfully transform non-visible energy to visible energy but it is tricky and dangerous. Nowadays, power electronics, alternative electro-magnetic components along with complex sofwtare switching algorithms.

Of course, I don't mean to discuss science of quantum electrodynamics, electro-gravitation, ultra-relativity and ultra-wide communications because it is not the purpose of this forum plus the subject can flame in no time unless the administrator authorize it.


207  Forum 2005-2010 (read only) / Exhibition / Re: Solid State Tesla coil on: October 25, 2009, 10:48:00 pm
Thank you Otaconk2k and systemx for your kind comments about the artistic & relaxing aspect of such device. Please note that if you're confortable in building mosfet drivers and opto-isolators, just buy a plasma globe made in China (really cheap for 5" or 8" globe), remove its electronic board to only keep it High Voltage transformer & the globe. After you just need to PWM pulse it and here you go with so many beautiful patterns related to the tuning triplet (voltage amplitude, pulse length and frequency of pulses) which you command from arduino duamilanove or mega. Just be careful because this will become a solid state tesla coil which involves very high voltage.

Hey AdderD, yes I understand & practice quite well quantum electrodynamics which indeed is the key for such experiments as well as non commutative, non linear electro-magnetics and electronics topologies in order to design non-linear oscillators with shuttling circuits only manageable by software due to its tuning complexity. I've choosen arduino board because they are very cheap & easy to run on Windows, Mac OS & Linux plus arduino has worldwide distributors so anybody can easily reproduce such experiments.
208  Forum 2005-2010 (read only) / Exhibition / Solid State Tesla coil on: October 24, 2009, 11:45:16 am
For those of you interested on Nikola Tesla engineering applied to Free Energy devices and Plasma healing devices in the spirit of Royal Rife engineering, you'll see my arduino mega board running in Part7 of my YouTube channel

The demo is running with Time Driven software and opto-isolator but I shall release soon a Timer Driven software with ultra fast power mosfet isolator-driver in order to get 100% CPU time for more complex Zero Point Energy project.
209  Forum 2005-2010 (read only) / Exhibition / Re: RFC: serial packet-oriented protocol for arduino on: November 13, 2009, 12:37:23 am
Hey Alvaro,

Is it possible to have running at the same time:
- your protocol via java interface application on a computer
- launch arduino built-in serial monitor

I mean, both uses same USB plug between arduino board and my computer, so can I send or receive parameters independently from both shells:
- arduino serial monitor shell
- another specific monitor shell working under java

Of course, the idea for me would be to migrate or integrate my actual command & parameters being managed from arduino serial monitor into a unified java shell including your oscilloscope.

Thank you
210  Forum 2005-2010 (read only) / Exhibition / Re: New oscope - new UI, new features on: March 07, 2010, 11:53:12 am
As for buttons, somebody came up with a "multi-turn pot" for Processing that is pretty cool.  Useful for adjusting PID parameters tightly. It takes quite a few lines of Java code to implement them though.
Does someone knows how to convert this code into a java which could be then called from a higher level java UI running on my Macintosh which is compiled via Xcode ?

Thank you
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