Author Topic: Voltage Intensifier Circuit  (Read 46050 times)

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Re: Re: Testing of Warps chokes
« Reply #8 on: April 28, 2010, 17:17:28 pm »
Maybe the transformer itself it out of range of that particular setup , resonance cant be much farther than 20 Khz with a big  cell like that .

Usually the core  material is really important , transformer cant be too big also .

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Re: Re: Testing of Warps chokes
« Reply #9 on: April 28, 2010, 17:56:52 pm »
Hi donald

You should have at least the coils inductances and at least a guess on what is the capacitance of your cell. Then you will find easier the resonance. However i think you have too much resistance on there to have a reasonable resonance...

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Re: Re: Testing of Warps chokes
« Reply #10 on: April 28, 2010, 18:12:52 pm »
Tap water, I will try distilled tomorrow.

I've been playing around with different configurations, and nothing else is working like that original set up in the video, i've been getting lots of different high voltage readings, and measuring between different places trying to understand it better.

Without the small chokes, it doesn't produce gas, hook it up backwards, no gas, no set up transformer, no gas, no diode, no gas

The power supply is 12 volt at max 2 amps, but measuring it is more like 9-10 volts, I'm going to play with this some more and see if i can get something on a scope, if i can get a hold of a scope.

The frequency range appears to be small, not the full audio range, I can't find resonance anywhere, I imagine if i can find the resonant frequency then the gas production would increase a lot, also gating like you mentioned... no gating on this circuit either
There is no resonant frequency with a blocking diode. The diode is there to prevent resonant action, the frequency doesn't matter anymore, it's only for changing the reactance of the coil and therefore current/voltage regulation.
The Richie Burnett link explains this.

Nice video though! Can't wait for any information about current / voltage to the cell  :D
Also choke-material (┬Ár) would be awesome to know, ferrite core or whatever it is.

Quote
Instead of choosing the charging inductor and capacitor values based entirely on the intended rotary firing rate, the designer can now choose values based on the desired charging profile, peak charging current, etc. This is because the natural resonance in the charging circuit has been "killed-off" by the insertion of the diode inside the resonant circuit. Any link between the natural resonant frequency of the charging circuit, and the firing rate of the rotary gap has been removed.

The operator now has freedom in their choice of spark gap firing rate, provided that they allow the minimum time required between firings for the capacitor to complete its charging operation. This permits very slow repetition rates to be evaluated without any extinction frequencies, or high Q-oscillations building up in the charging circuit.
http://www.richieburnett.co.uk/dcreschg.html

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Re: Re: Testing of Warps chokes
« Reply #11 on: April 28, 2010, 18:24:38 pm »
Still trying things, I don't really have the proper equipment to take the measurements i need, I'll get help with this soon.

If you don't use the diode, this circuit doesn't work... i just tried connecting the choke before the diode and it cuts out the power supply due to its internal safety features, and if you have it hooked up after the diode it works, then shorting out the diode with a pair of pliers also trips off the power supply.

My meter jumps around or even stays maxed out, so i can't really compare voltages from one place to another because it's maxed pretty much everywhere, i'll need better equipment.

The big step up transformer is getting warm... maybe even hot, could this be from improper frequency range? or improper wire size? The power supply puts out 2 amps max, but if it is pulling less than that, or anywhere in the range i can't really tell...

With the light in series with either of the connections before the cell it wont produce gas, but the light is bright, and hv can still max out the meter across the cell or even across the light

It would be great to narrow down some numbers to have a actual analysis of this circuit.

And I shocked myself, gave me a little surprise but nothing serious at all, I wouldn't want to keep my fingers where they were, but over all i've been touching different wires and connecting different things while it's on and that isn't causing me much trouble

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Re: Re: Testing of Warps chokes
« Reply #12 on: April 28, 2010, 18:32:17 pm »
Still trying things, I don't really have the proper equipment to take the measurements i need, I'll get help with this soon.

If you don't use the diode, this circuit doesn't work... i just tried connecting the choke before the diode and it cuts out the power supply due to its internal safety features, and if you have it hooked up after the diode it works, then shorting out the diode with a pair of pliers also trips off the power supply.

My meter jumps around or even stays maxed out, so i can't really compare voltages from one place to another because it's maxed pretty much everywhere, i'll need better equipment.

The big step up transformer is getting warm... maybe even hot, could this be from improper frequency range? or improper wire size? The power supply puts out 2 amps max, but if it is pulling less than that, or anywhere in the range i can't really tell...

With the light in series with either of the connections before the cell it wont produce gas, but the light is bright, and hv can still max out the meter across the cell or even across the light

It would be great to narrow down some numbers to have a actual analysis of this circuit.

And I shocked myself, gave me a little surprise but nothing serious at all, I wouldn't want to keep my fingers where they were, but over all i've been touching different wires and connecting different things while it's on and that isn't causing me much trouble
if you have 2000V/10mA at the cell (just a random value) then you are inputting 10V/2A into the primary, which would cause the transformer to get hot.
does your power supply switch off automatically if you would pull more than 2 amps? if not it may give out more amps but overheat in the end and be destroyed.

You could put 5 Megaohm resistors in series and measure the voltage over one of them, when the 5 resistors are wired in parallel to what you want to measure. the meter will show only a part of the voltage, which you'd have to calculate depending on your resistor value but it's a common technique to measure larger voltages. don't forget to isolate the resistors properly though otherwise there could be sparks.

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Re: Re: Testing of Warps chokes
« Reply #13 on: April 28, 2010, 19:00:59 pm »
Yes the power supply kicks out automatically when I do something it doesn't like, it says max 2 amps on the label, so i am assuming when i draw more than that it shuts off, and i have to unplug it and wait a few seconds, then plug it in again, i assume to let the capacitors inside bleed off their charge to reset it.

I don't have any megaohm resistors, but i'll see if i can find some.

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Re: Re: Testing of Warps chokes
« Reply #14 on: April 28, 2010, 21:59:43 pm »
Here is a video with my chokes, this may even visually appear to be more gas, or about the same... my chokes are wound bifilar, warps chokes are not, just on top of each other, not sure what difference that will make.


I counted about 53 turns for the outside layer on warps chokes, the other layer is under electrical tape.
My chokes have 56 turns for each wire, although much thicker 18 gage.

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Re: Re: Testing of Warps chokes
« Reply #15 on: April 28, 2010, 22:13:39 pm »
I'm noticing that my chokes are showing a much more stable voltage reading, and changing frequency will change the voltage, i can get it to be stable within about 100 volts, and adjust the frequency to go from the 100 volt range to the 200 volt range to the 300 volt range and so on up to the 900 volt range and then it starts to blank out the meter. The voltage will go up then down then up as i adjust frequency, there might appear to be some frequencies that the chokes like more.

I think bifilar chokes with more turns would be nice to try in this set up.
Also a scope would be dandy to see what this is really doing.