Author Topic: Successful TPU-ECD replication ! (Read 1145158 times)

z_p_e · « **Reply #600 on:** June 27, 2007, 06:09:45 AM »

@Ronotte and all that may be interested.

I did a new sim on Otto's and Roberto's circuit as per their document, and Roberto's coil specs. The results are shown in the attached pdf.

I used a very small inductance for the bulb, and showed scope shots with and without an output diode.

A single frequency f1 at 55kHz was used. Results are quite different than sim01.

Let me know if there's anything you want changed or that you would like me to try.

Regards,
Darren

ronotte · « **Reply #601 on:** June 27, 2007, 09:01:32 AM »

Hi Darren,

it's very interesting, now I can see that the waveform on pulse leading edge is similar to that ECD. Just in order to be able to compare the results could you please run the following tests?:

- 1 coil 1 freq (ok 55KHz).. In this situation you should see no sinus trace, jus bursts of RE
-1 coil 2 freq (55KHz, 60 KHz)...In this situation you should see a complete different burst of RE: the peaks are summing up and on ZERO point only you should see the piece of sinus appearing at 50KHz.

I forgot to say that generally I put scope probe on ZERO and PHASE (scope ground is to PS ground) and please in all the tests take out for the moment the diode as the load is always direct connected.

Thanks very much

Roberto

duff · « **Reply #602 on:** June 27, 2007, 11:26:17 AM »

Thaelin · « **Reply #603 on:** June 27, 2007, 11:53:02 AM »

@ Jason:
This is actually not really related here but then it is. I am so taken with the scope that you have in the background that I would love to know who makes it and the specific model number. I am in the market for a new one and want a good one to boot. Thanks

sugra

z_p_e · « **Reply #604 on:** June 27, 2007, 02:37:29 PM »

Quote from: ronotte on June 27, 2007, 09:01:32 AM

Hi Darren,

it's very interesting, now I can see that the waveform on pulse leading edge is similar to that ECD. Just in order to be able to compare the results could you please run the following tests?:

- 1 coil 1 freq (ok 55KHz).. In this situation you should see no sinus trace, jus bursts of RE
-1 coil 2 freq (55KHz, 60 KHz)...In this situation you should see a complete different burst of RE: the peaks are summing up and on ZERO point only you should see the piece of sinus appearing at 50KHz.

I forgot to say that generally I put scope probe on ZERO and PHASE (scope ground is to PS ground) and please in all the tests take out for the moment the diode as the load is always direct connected.

Thanks very much

Roberto

No problem, I'll run these tests and include all PSpice info as well.

Just to clarify though, I want to be sure what you want me to do.

When you say one coil, do you want me to disconnect the other two coils from the circuit?

When you say one coil, 2 frequencies, am I to use 2 switches in parallel and drive one switch at 55kHz, and one switch at 60kHz?

So when you scope the ECD, you always have your scope ground on PS ground, and then you either scope the ZERO or PHASE terminals? If so, that should change things. I always assumed you were scoping across the bulb. Please clarify.

Note that the way I am scoping in the sim is across the bulb. It is a differential measurement.

Attached here is the PSpice netlist, .cir files etc.

Darren

ronotte · « **Reply #605 on:** June 27, 2007, 05:06:50 PM »

@Darren,

1 - Yes, the other 2 coils must be disconnected. This makes the comparison much more easy. Note: the situation with 3 coils & 3 freqs are too much complex (...for scope trigger also).

2 - Yes, exactly so: use 2 switches in parallel and drive one switch at 55kHz, and one switch at 60kHz.

3 - When I scope the ECD I always have my scope ground on P.S. ground, and then either scope the ZERO or PHASE terminals or both .....I can also scope differentially the 2 points...(without connecting the scope ground).

Darren, I thank you so much that kind of simulation, it may shed some light on ECD scenario.

Roberto

ronotte · « **Reply #606 on:** June 27, 2007, 05:11:29 PM »

@Darren,

forgot to say that this is just the initial simulation. I'm thinking, if you have time and want to follow me, to drive you step by step (following my real operations) into obtaining the features I observed: Seed, Peak's conversion, sinus appearing, etc

Roberto

z_p_e · « **Reply #607 on:** June 27, 2007, 06:08:42 PM »

OK Roberto, thanks for the confirmation...and you're welcome.

I'll run some tests tonight (10am here at the moment).

I'm going to try and run some sinusoidal frequency sweeps also to see if I can find any sweet spots and resonances.

Unfortunately, at the moment I don't know how to do frequency sweeps with this sim square generator, or even if it is possible.

Darren

ronotte · « **Reply #608 on:** June 27, 2007, 11:27:55 PM »

Hi all interested to ECD,

what it follows is the test report for the new Otto's CC design.

The new transformer has been built and set on my test-ECD in order to be able to make any kind of test. Said ECD is for test purposes only and anyone can ask me to do tests. Please remember that this run is with ONLY the new CC energized.

Roberto

PS: I forgot to say that in pdf the voltage swing on load is always ranging from 200 to 500V and in pic2292 and Pic2294 you can see the Seed very well.

hartiberlin · « **Reply #609 on:** June 27, 2007, 11:59:54 PM »

Hi Roberto,
well done.
What does your power supply exactly read as the
used voltage and current.
Better use a 100 nF foil cap directly across the power supply output plug pins
so the RF pulses will not influence the power supply.
also an iron or ferrite core wired around your red and blue supply cables
could work as choke lowpass shield versus your power supply.

Many thanks.

hartiberlin · « **Reply #610 on:** June 28, 2007, 02:07:46 AM »

Here is a first movie of Roberto,
just showing his measurement TPU-ECD setup.
Not yet lighting the bulb:

http://www.megaupload.com/?d=SIL3B8KL

z_p_e · « **Reply #611 on:** June 28, 2007, 05:40:15 AM »

Before moving on to Roberto's suggested test with the simulation, I wanted to see what the current circuit looked like by scoping only the "ZERO" terminal.

F1 was 55kHz as before. See below for scopeshot.

Darren

z_p_e · « **Reply #612 on:** June 28, 2007, 07:31:38 AM »

I've now run the test Roberto requested.

One CC only, switched by 55kHz and 60kHz simultaneously.

Output is taken off the ZERO terminal.

Roberto, not sure if this is what you were expecting, but it doesn't look too unusual.

Darren

otto · « **Reply #613 on:** June 28, 2007, 07:33:43 AM »

Hello all,

@Roberto

well done. Have you tried to connect another control coil?? I think not because you cant do it!!!
Im working now on a 15" TPU. I made new collectors for this TPU.

When I pulse this "TPU", the bulb is shining very nice but the problem is to connect other controls because it CAN NOT be done.

My newest crazy idea is to make 3 Mobius for 3 frequencies and on each Mobius is on the 15" ring a control coil. In this way I have 3 outputs and then I want to pulse them with the needed frequencies. I dont know what will happen but as I already made the collectors its only a few minutes work to connect everything.

Otto

Bruce_TPU · « **Reply #614 on:** June 28, 2007, 08:13:32 AM »

Hello Otto,

Just a quick question. I read earlier that you added another secondary coil, and used this through induction to light the 100 watt bulb.

Have you tried doing the identical same thing with the other two control coils, and then take these three addtional secondaries and tie them together either in series, or parallel or both for a combined output?

Thank you,
Bruce

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