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Electronics => Best WORKING circuits for WFC => Topic started by: Steve on April 05, 2010, 13:17:41 pm

Title: New DC resonant charging circuit
Post by: Login to see usernames on April 05, 2010, 13:17:41 pm
Hi,

Here is a working DC resonant charging circuit.
The voltage across the Waterfuelcell is al least twice of the input voltage.
In my case almost 30Vpp against a 10v input.

You might pull the conclusion that the waterfuelcell acts like a small battery or capacitor.

Tune the circuit till you reach the highest voltage across the waterfuelcell.
USE ONLY TABWATER OR DESTILLED. NO CHEMICALS ALLOWED IN HERE.

Type of diode: Not important. Only heavy enough for the amps you use
Type of coil: in my case 25 winding of 1mm wire on a metal lamel core. 1mH
                    Just play with some cores you have.
Type of FET: Not important. Any N type will do. The lower the internal resistance the better. Your choice depends on voltage and amps.
Frequency: try to stay above 1khz with tuning. My test was done around 10khz.

Steve


http://www.tpub.com/content/armymunitions/mm50058/mm500580088.htm

http://www.richieburnett.co.uk/dcreschg.html#resonant

http://teslahv.com/DC%20Resonant.htm




Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 06, 2010, 21:54:02 pm
how would you integrate the step-up transformer into this circuit?
the only way i can think of is using a hv-mosfet. not the best idea
Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 07, 2010, 08:48:38 am
how would you integrate the step-up transformer into this circuit?
the only way i can think of is using a hv-mosfet. not the best idea

Tesla used for this a rotary switch.
Like the distributor from a cars ignition system.

Stan solved that somehow with pulsing the stepup trafo..



Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 07, 2010, 16:32:34 pm
That is the conclusion I recently reached regarding Stan's circuit.  His inspiration was Tesla's method of conversion of high potential and frequency and Stan modified it slightly so the path was unidirectional.  Before the rotary switch there was the spark gap and then Tesla would quench the spark magnetically or by air or otherwise.  Stan uses the 555 and divide by 8 or 10 counters to simulate the rotary switch in solid state.  IF there's communication between the wfc and the vic then it's the pickup coil that's the "antenna" for feedback to the front end.  I don't see much difference between what Stan was doing and what Tesla was studying and publishing and patenting.  The difference is where Stan publishes the location of some components like the scr.  The front end should get a nice sine wave and the back end should switch on and off very fast.  If I want 50% duty cycle I would use ac like a center tap transformer, a half wave bridge and 2 or a multiple of 2 tubes or tube arrays.  For 3 phase a multiple of 3 tubes.  It's as simple or as complicated as one wants to make it.

Andy
Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 07, 2010, 19:49:37 pm
But back to the circuit,
why does it work fine in this configuration (switch/mosfet parallel with cap) - i can get 70V at the capacitor from 30V at 0,1A - but why doesn't it work in the stanley meyer / richie burnett / tesla coil version at all? (same voltage but only 2V at the cap).
Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 08, 2010, 18:57:44 pm
btw you can get voltage to your water cell which is not insulated with this method!! Strangely enough i had to change the direction of the bifilar connections yet again.
unfortunately the amp draw in general is too big so i cannot test further yet. i'm also thinking of rectifying my 230V grid current which would give me about 350V DC i believe. I have a switching Mosfet for 600V so it would work. But the current is way too big at the moment.
Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 08, 2010, 21:24:49 pm
add a series resistor some where? might need a big one though
Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 08, 2010, 22:51:06 pm
but it will eat up the voltage, even a 20Ohm. I don't know why the coil uses so much current even when pulsed at 50kHz. I think i have a short in the circuit somewhere or something like that.
Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 09, 2010, 08:41:14 am
add a series resistor some where? might need a big one though

a coil perhaps as resistor?

Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 10, 2010, 11:21:50 am
Why is it that current goes up dramatically if i put a flyback diode anti-parallel to the coil in this circuit?
Same is when i put a diode parallel to the transformer, the current isn't frequency dependant anymore, without diode: 30V / 0,3A. with diode: 3V / 1A (1A limit from power supply). i don't get it.


anyway, problem solved. without the diode current draw is small.
Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 11, 2010, 13:37:24 pm
here a new Stan based setup.
The voltage across the cap charges higher then applied voltage.
The resistor is for leaking charge, but cannot simulate a WFC perfectly...

Cap and coil and frequency match.
The result is that amps and volts are 180 degree out of phase.
Hmmm, who said that his system was working with 180 degrees phase difference between volts and amps?
yes STAN MEYER...

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Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 11, 2010, 14:14:43 pm
Why does it work in a simulation but not in reality  :-\
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w 320 320 416 320 0
w 288 240 416 240 0
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159 208 240 144 240 0
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o 0 1 0 35 979.7766621314685 7.475102707912206E-5 0 -1
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Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 11, 2010, 17:22:00 pm
Why does it work in a simulation but not in reality  :-\
$ 1 5.0E-6 0.23009758908928252 51 5.0 50
c 416 240 416 320 0 1.0E-8 700.655449046733
w 416 240 480 240 0
w 416 320 480 320 0
d 208 240 240 240 1 0.805904783
l 240 240 288 240 0 0.01 -1.3877787807814457E-17
w 320 320 416 320 0
w 288 240 416 240 0
v 144 320 144 240 0 0 40.0 360.0 0.0 0.0 0.5
w 144 320 208 320 0
159 208 240 144 240 0
R 176 224 176 128 0 2 3000.0 5.0 0.0 0.0 0.5
w 208 320 320 320 0
o 0 1 0 35 979.7766621314685 7.475102707912206E-5 0 -1
o 7 1 0 35 640.0 9.765625E-5 1 -1


I hope to give it a shot this week...

Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 11, 2010, 18:37:44 pm
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Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 11, 2010, 20:51:46 pm
$ 1 5.0E-6 0.23009758908928252 51 5.0 50
c 416 224 416 304 0 1.0E-8 -1.2675553006208302
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w 416 304 480 304 0
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w 288 224 416 224 0
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g 416 224 416 128 0
o 0 1 0 35 979.7766621314685 4.898883310657343 0 -1

Brian,

You added an Antenna towards your schematic.
Can you explain why you did this?

Steve

Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 12, 2010, 09:08:53 am
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Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 12, 2010, 10:26:08 am
233A in?  :-\
Title: Re: New DC resonant charging circuit
Post by: Login to see usernames on April 12, 2010, 13:16:03 pm
233A in?  :-\

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?