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Author Topic: Ward's Build of Bob Boyce's TPU  (Read 57978 times)

HumblePie

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Re: Ward's Build of Bob Boyce's TPU
« Reply #30 on: November 30, 2007, 11:20:45 AM »
hi Ward @all

I just posted some infor on Earls thread http://www.overunity.com/index.php/topic,2996.new.html#new

After I confirm simulation with experiments (today I hope) I will post a heap of information. It looks like fairly simple circuits can be used for driving -- but you do need to select the right parts and component values. I'ts quite amazing just how well you can do with a simple design -- but you do have to pay attention to detail.

cheers

mark.

Dr. Snoswell,

* Are rise and fall times to open-ended drive as pulse width is to closed-ended drive?  {Yes that is also pun on Schoolastic Aptitude style questions}. 

EDIT 01-Dec-07 ** Is rise/fall time the tweak to be tweaked for open-ended drive builders?  Ooops duplicated the first question by accident. 

Do-Over:
** What is the difference between driving a folded wire from both ends with seperate FET's Vs soldering the two driven ends together and driving them with one FET?
In the link above you talk about closed-ended drive pulse desired not being shortest possible, but that width that yields peak BEMF. 

*** Isn't this another way of saying 'peak resonance'? 

**** If so, does this say 'resonate the Prime'?  (as mentioned in a group discussion where we could use a Bifilar Pancake pickup coil to detect such with and without shielding)  "One Prime at a time 'with other Primes inactive' ". 

     I only ask '****' because of capacitive coupling dominating at 90 degrees as in the one wire experiment Jason showed us recently... and the TPU...
...and how it is said that 'the TPU is really a Tesla Magnifying Transmitter-Receiver rolled into one',

     But In the Meyl video and papers he says 'the resonant Rcvr 'fulfils the conditions required for resonance' and hence is of opposing phase with respect to transmitter.  So my mind wants to think; make the Secondary resonate in response to the the Primary, but they do not ever 'co-resonate' together this way nor do they have any linked phase relationship. They are not common, but the circumference is. 
   
So then I think of the experiment you shared and Jason duplicated with the solenoid coil capped at one end with the folded Bifilar pancake.  (I re-cap this so it makes sense for others.) 

     That test showed:  Drive the solenoid, pancake picks-up in-phase at both ends, pancake upside down no difference (because it is 'flux blind'), BUT drive pancake and solenoid pickup shows 90 degrees lagging one end and 90 degrees leading at other end. 

So now I see the solenoid should be bent into circle and its ends would be 180 degrees out of phase, fulfilling the conditions required for resonance.. in the toroid itself, not the Primary or the Secondary after all.  So the optimum Primes should be folded 'Bifilar' to make them fluxless (not real Tesla Bifilar like Wiki' shows).  I bet this is how they transmit two directions at once because they are flux-free... like Giant's avitar once illustrated.  Bob actually says this.  'drive a coil from both ends to really see results' to paraphrase.  So Dr. Snoswell, can your simulation for driving from both ends fit my proposed folded Primaries?  You said it was the very best way to drive them.

The opposing phase certainly explains how the sum of ALL winds on the Toroid is/are the longitudinal open-Capacitor path of the ~LMD Transmission Line and why all should fully touch... and how it could be made resonant at a totally different frequency than either the Primary or the Secondary, being forced into nodes by circumference.   The opposing phase explains why my Primes near the middle resonate oddly higher than the others (whether 1X or 10X probed, relatively speaking... BTW - one is supposed to use a pick-up coil probe, not connect right to coil else you are adding L & C to them with the probe.

~See the LMD Trans' Line at http://jnaudin.free.fr/html/lmdtem.htm   

I look forward to the simulations, and I wish I had time to learn Spice or Jason's favored alternative simulator because the reports are very encouraging.  Still you blow drivers though, but fewer I bet.  I still have 4 DEIC420 drivers I'll try after I get my balance.

*******************
@All, 

My GAL card 'seems' 100% clean now with DDS 20 as the CLK source, but it won't fit in middle unless I really hack some posts down, and wires going around it would be a last resort. 

My Tektronics 465 O'Scope Time Base Shaft just stuck in B'Dly mode and it is the perfect excuse to spend money on a new scope. 

Please advise with your favorite Scope picks if you were to buy one today.  I am on a budget, but they last so long I'll splurge!  I know I will be glad I checked your opinions before I buy tomorrow.  Thanks in advance.

Ward
« Last Edit: December 02, 2007, 07:42:44 AM by HumblePie »

MarkSnoswell

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Re: Ward's Build of Bob Boyce's TPU
« Reply #31 on: November 30, 2007, 01:36:14 PM »
Hi Ward,
   I don't have time to answer all the questions now --

I did some testing today. I am not blowing any drivers now... but I am blowing mosfets at an alarming rate... and at *way* below their rated voltage and current.

I have to do more tests -- but something is wrong. Before it dies the output waveforms do match the simulations very well although their amplitude is low -- and the mosfets die with alarming regularity. I am concerned that there may be some energy spikes that I am not seeing on the scope -- and that it's this "invisible" energy that's killing the mosfets.

Mark.

Earl

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Ward's Build of Bob Boyce's TPU
« Reply #32 on: November 30, 2007, 02:40:31 PM »
Hi All,

here is why I want to "blow up" my transistors or diodes.

http://www.overunity.com/index.php/topic,2996.msg61991.html#msg61991

Regards, Earl

HumblePie

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Re: Ward's Build of Bob Boyce's TPU
« Reply #33 on: December 01, 2007, 11:24:01 PM »
@All,

My camera's display just died so no photos for awhile.  See below.  I removed the Op-Amp oscillator from my GAL board and cut the board narrower so it will fit in the ring beside my DDS 20.  Can't make the Opto-isolators listed for the PWM3F work anywhere above 60KHz and I am using the current levels this OCP-PCP116 opto's data sheet calls for... so I will try the IL710-2 in PDIP Pkg rated at 300V.

I could have waited to obtain 1% Capacitors (code 'F') to retest the jitter and thinking that is what delayed action.  However, even if jitter is solved, this oscillator is not near fast enough.  My GAL uses 12X CLK.  I can not use a 6X CLK for divide by 1.5 as the TP900 Pulser does.   A CLK multiplier is really the only way to get stable and adjustable higher freq's without my DDS 20. 

My RC Dly's will suffer phase stability jitter too from the 20% tolerance Cap's.  I thought +/- 20% only affected the actual measured value Vs labled value... it seems the cycle to cycle repeatability is the major issue.

Do List:  Fix and test GAL Card wires being redone.  Change Power Supply and Kill Switch wires to coax, and reinstall 22M Ohm Resistors on the HVPS Capacitor.  I am very close, but am having momentum problems for various reasons.  I will succeed.

Edit 3-Dec-07 - PC just died and the motherboard is extint!  O'Scope, Camera, PC... 3 sigma says it should be smooth sailing after I get a new PC.  Using Vista box I'm borrowing Vs WinXP is going to be like running in mud and I all those book marks I hope I can recover.  Maybe the time for Linux has arrived.

I don't know what I lost yet.  Be safe -> REMEMBER TO ARCHIVE ALL OF THIS DATA...(all text, all files, all bookmarks)... ESPECIALLY THE OLDEST STUFF LIKE RECENT POSTS OF TAO, EM, MARCO, JASON, MDR, GIANT, etc (many others... I just read these first... order is random Thank you all even those not mentioned).     

THIS DATA WILL NOT STAY STAY HERE FOREVER.  CAN YOU ACE IT ALL BEFORE IT EXPIRES?  Trust me on this.Ward(http://[img] [img])[/img][/img]
« Last Edit: December 03, 2007, 10:30:38 AM by HumblePie »

HumblePie

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Re: Ward's Build of Bob Boyce's TPU
« Reply #34 on: December 04, 2007, 09:00:52 AM »
@Hey All,

New horrible Vista OS PC has worn me down after a day wasted 'trying' to import my WinXP bookmarks into Vista.   An expert assured me it had to be done as was shown to set ownerships for importing only to find I could not per URL format Vs html. 

Ha.  I felt like the guy salting before tasting I did.  I could have tested a few files before clicking about 10,000 clicks (really), but it gave me time to think about things. 

While I burned that time I kept replaying Dr's words about 'content' of that previous post I made, I assume about the DC to DC power supply and/or tuning characteristics I saw. "Interesting" I thought.  It wasn't even a toroid.  I was so focused on wanting that inductor to be very tiny I only tried one that was toroidal... a bead really about 5mm diameter.  It ate mAmps like candy. 

Its circumference was so small and this apparently is what made its impedence so low when driven at such low frequencies as a 555 delivers.  It did not matter how short its pulse width was.  The low frequency was inappropriate for the circumference.


Then there was the Ramp Wave pattern seen in the DC2DC HVPS output that I kind of breezed over describing.  Remember to/(I) start(ed) with lowest freq' and shortest pulse... which always uses the least mA of any pulse width.  As I increased frequency with shortest pulse width, the voltage out followed in a linear fashion until it SNAPPED up dramatically with PLL characteristics... meaning I had to reverse and decreased frequency more than expected to get back to the low voltage out 'low-peak'.     The wire length was trying to hold the wavelength of the frequency into integer mutiples of its length it seems, but why the asymetrical behavior?  Why is the ramp wave pointing with ramps going up and towrads the low frequency side of the graph ( I made a mental graph, else I'd show you).  Try it if you have not, else be disadvantaged I bet.

Sounds just like SM telling us about his " 15" Stereo Speaker Amp that he had to leave at 35KHz and change because it fought his tuning attempts to reach 35K... so he left it there at this frequency where he could not hear that > audio band anyway... SM was telling us what the circumference does to resonance. The exact change over 35K is related to circumference. 

BUT my little inductor yielding 500VDC out is just a 1:1 chip Transformer.  NOT a toroid at all.  The frequency was fitting the length of wire and that wire length forces nodes.  Forget about if it is integer # of circumferences that fit wave or wave length of the FREQUENCY fitting the circumference (no keep pondering that too!).

  The "Phase velocity" of the pulse or transition we drive is << than SOL in Copper and has something to do with the "Acoustic wave"... but somehow it is much slower than the pulse or transition we drive into this thing.  I read start of EM's thread 'Exploring Addition of Signals in SM's TPU' and got to thinking about what in the heck EM means by "Phase Velocity".   

http://www.overunity.com/index.php/topic,3138.0.html
My take on it is:  ->   In here he talks about how the wavelength traveling at SOL IF matching the circumference would have its peak fall at the very same place around the toroid each and every cycle... by nature of the wavelength fitting the circumference exactly.  So actually when using a slower frequency we seek the next best thing... an integer # of circumferences fitting exactly into the wave length.  Yes the signal will overlap onto itself and add to itself, but the same each and every cycle, as long as exact integer multiples apply.     If SOL, we need 3.2GHz I told EM.  He said 'the acoustic wave is slower' I think he said.   He describes rotation emenating from slightly less than or more than integer # of multiples (in my interpolation... he really says literally wave length = circ', but forget that for now).   

So then I replay thoughts about
MAGNETOSTRICTION... the audible buzzing when inductor pulsates and stretches conductors and affects magnetic impedence and vica-verce (if there is such a thing).     Audible/acoustic implies low frequency... what?   Well if that slightly "Off-tune", it would tend to rotate the peak aroud the toroid because its end would land at a slightly shorter landing zone than each previous cycle did if it was anywhere less than 1/2 a circumference shorter than a perfect integer # of circumferences in wavelength.  When it is a little shorter still, say 3/4 of one circumference, it is just like being 1/4 > than a perfect integer # of circumferences long, and the pulse peak rotates the other way.  NOT, same way, opps. BUT it is the OPPOSITE direction that the pulse is being driven!   This landing zone of the 'start' of pulse (or end of pulse if it makes you think easier) seems to be what is being called:

PHASE-VELOCITY...

I think... and this can be made to travel very very slowly around the ring either CW or CCW... all with one frequency.   INTERESTING stuff EM.  Now why not drive folded Primaries so they are driven at both ends (same end both because folded back on itself) to cancel flux so there will be bidirectional transmisisons of pure longitudinal pulses capacitivly coupled around the toroid?  That way you get bidirectional counter-rotaing longitudinal "Clashes" kind of like MagClashes.pdf (a masterpiece of pdf'ing BTW... nice clash image!)   
     AND why not just solder the side by side leads together of this folded bifilar Prim so can be driven perfectly simultaneously with a single FET?  Oh yes I want to try it fast.  I am the slowest hands on guy I you know, but I'm trying hard to understand how this toroidal one-frequency MT works and this slows me down just as my lab partners tell me it paralyzes them.  'Keep thinking every day' I urge them/him.  It is a little similar to Jason's green mini-TPU here:

http://www.youtube.com/watch?v=X6NlO-fVr_U,

but the drive of the Primary is not same as I describe.


Haste makes waste.  I must try the salvaged PC power supply sized toroid to see what it does. Toroidal DC to DC power supply I read was recalled from Min'Man'Miss'l 'deployment' for being 'ou'.  I see this vending machine is said to be also... notice the big toroid:

Bruce's sticky to  http://altenergy-pro.com (no FORGET the pictures really, just MEMORIZE the text there called 'Magnetic Resonance Specrum")... it says to me take EM's rotation in 1 ring with 1 freq and put a hundred identical passive rings above and below that will rotate for frre-ride on the back on the active ring WITHOUT DIMINISHING THE SOURCE... oh ya... INTO INFINITY without diminishing the source.  Like gallery photo #2 shows with the stove pipe satalites resoanting for free in presence of active transmitter in center.  An MT I bet... Lindsay would not answer when I asked about "Pipes, tubes, and plastic" back in late June in SuccTPUreplicat' thread.  It is not like an alternator that loads your engine down as you turn on the lights... he he!  It says that anyway.  I will try.

About doing everything (meaning some things) backwards from what we've been taught (taught where/when ha ha).  There is some contratdiction by specification so be prepared to test all hypothesis.  If they prove false, test the opposite for grins.  I would have bet lots that min pulse width to the 9V DC to 500 VDC PS would have been more efficient than max pulse width, but opposite was true to about almost always on pulse width where mAmps climb finally.


AND realize I am a fool if I do not place the bridge accross a toroid instead of 'any inductor'.  Like the Japanese self-powering vending machine appears to have a Boyce sized toroid in it keeping its batteries charged always!   This bridge saves what the diode blocks and is normally wasted... sending it back to the battery, with a Cap accross it to smooth and sooth the battery input.

To see the Capacitor equivlent circuit that keeps batteries charged, see gnosys.com links "MUST READ" and you'll find:
http://theverylastpageoftheinternet.com  and a 'slightly' wrong schematic of the Capacitive circiuit from an Engineer who heard Mr Bedini speak about it and just built it.  Both modulate the equilibrium.

OK so my brain is cleared of this thinking.  Now how is the transmitter and receiver of this toroidal MT to work without a tank circuit.  Giants new Hetridyning tread jut posted links back to this open-capacitor Tesla MT again and it has tank Ckts.  Grumpy points out these coils are being used like Capacitors, not inductors and could be replaced with some kind of 'capacitor' plates ('implied')... hmmm.  Interesting.  I will eventually connect all this, but not without hands on!  I bet the EM style rotation direction change with slight freq'/wave length change is somehow related to the ramp wave I see in HVPS V-output Vs frequency.

Ward
« Last Edit: December 05, 2007, 09:06:25 PM by HumblePie »

eldarion

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Re: Ward's Build of Bob Boyce's TPU
« Reply #35 on: December 04, 2007, 03:17:23 PM »
Hi Ward,

Very interesting thoughts there!

Regarding Vista, I once had the pain of trying to use it in a store.  I now run Linux, customized to look like XP:
http://www.ubuntu.com/
http://ubuntu.sun.ac.za/wiki/index.php/KDE-XP

Works great!

Eldarion

HumblePie

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Re: Ward's Build of Bob Boyce's TPU
« Reply #36 on: December 04, 2007, 05:23:34 PM »
Hi Ward,

Very interesting thoughts there!

Regarding Vista, I once had the pain of trying to use it in a store.  I now run Linux, customized to look like XP:
http://www.ubuntu.com/
http://ubuntu.sun.ac.za/wiki/index.php/KDE-XP

Works great!

Eldarion
@Eldarion,

Thank you for your recommendation.  I have a Lindows expert friend who has tried to get me off big fat MS OS's for many years.  My excuse was the learning curve.  Now I must decide this again.  Do I side step learning Vista skills I may need when I use such a system?  I want to very badly.  I really am struggling with Vista.  I must get RMF happenning ASAP, so I will delay the change I desire to Lindows.  BTW - It is said that the Vista built -in Yahoo toolbar Big Brothers archives all I/O from the OS, just like CNN has reported about Google Tool-Bar.  This is good enough reason to reject this OS.  I doubt I can remove anything besides the facade, but I am assuming this.  GrrrR!

Thank you again Eldarion for leading the way in your thread.  It really helps me to see what others are doing.  I've asked where more Bob Boyce style TPU builds are posted because you, Earl, and Wer are the only others I see posting builds of it.

Ward

Earl

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Ward's Build of Bob Boyce's TPU
« Reply #37 on: December 04, 2007, 06:11:49 PM »
@All

My recent new notebook left the factory with Vista on it, but the dealer upgraded Vista to XP, which is what I'm using now.  When I received it. I found a ~4 GB Windows partition for C: and the rest of the HDD was ~75GB empty second partition.  There was no recovery disk, so I hunted around and found a Linux program called PING (Part Image Is Not Ghost).  PING is a great program, I highly recommend it.  Backup and restore, and you can even burn a boot CD disk that could save your @ss one day.

I also highly recommend shrinking Windows C: partition down to as small as possible.  I see no reason to have C: larger than 4 or 5 GB.  Never install any programs to C:, they don't belong there.  Keep C: lean and mean and use PING to take regular snapshots for permanent storage on HDD or DVDs.

I have been keeping data backups on an external 2.5 in USB drive and just upgraded from a 80GB PATA box to a 250GB SATA 2.5" box.  I am on my third SATA box and will soon be able to give some recommendations, especially which ones NOT to buy.  I require that the box need only one USB port for power from notebook, many need two USB ports because of high spin-up power peak.  The one I bought today appears to be happy with the power from just one port.  Stay tuned for my external backup box advise.

We are left with 3 possibilities whether we like it or not; stay with XP, upgrade from Vista to XP (demand the disk from the dealer), or migrate to Linux.  I have learned a bit of Linux in order to play with my Linux router box (LinkSys running OpenWRT or DD-WRT).  The programs OpenSSH and OpenVPN are very interesting and useful to have.

Earl

HumblePie

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Re: Ward's Build of Bob Boyce's TPU
« Reply #38 on: December 04, 2007, 07:52:47 PM »
@Earl,

Way cool info.  It brings me back from distraction though.  Do you have any thoughts for me on Reply 31 30 or 34 here?

http://www.overunity.com/index.php/topic,3506.msg61974.html#msg61974

You are Mr parallel tran's line drive guy and your posts and Dr's Spice Sim's inspired these questions.  Hands on will test hypothesis.  I now solicit design of experiment ideas.   Here are mine:

* (EDIT - This is Jason's idea / config I will test)   Do one wire experiment with lamp cord shorted one end together only, other end across resistor with one lead (so scope can see signal), other lead to Gnd.  Drive solenoid, open and closed ended drive.  Repeat test backwards... driving lamp cord one lead other unused, then repeat other end shorted like folded bifilar.

**With one wire winding above, drive solenoid winding again.  Bend it into circle while observing the response.  See if a gap, or diameter adjust of circle acts in any way like a larger circle / longer circumference.

***Maybe try winding a solenoid made from the one wire winding assy above too... then try driving the solenoid Vs the 'receptor' again.. receptor as in text at http://altenergy-pro.com describes... maybe.  I'm rambling, but I now have a great list of experiments I must perform, else let myself down in non-public ha ha.  Hey Spencer, start posting your build because it forces some sort of schedule on you that will somehow fit into busy schedule.  It is like paying yourself first 10% of your gross earnings into 'never touch nest egg'.  Do this before you pay bills!  All else will fit the 'modulated equilibrium' your budgeting has created.  I better go put some hours in before boss calls me for progress report.  I suppose dead PC is good excuse, but I grow poorer every hour!

Ward

PS - Giant once wrote 'Keep the noise down'.  I will stop this texting bla bla and post experiments and build progress.  Otto told me early, "I don't want to hear any theories"...  "Just build".  Then Bruce told me, "Now is the time to build, you have all you need" (any way more than what we really need) .. as in comradare follows succeeders, ha ha.  I will succeed.
« Last Edit: December 05, 2007, 09:01:50 PM by HumblePie »

HumblePie

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Re: Ward's Build of Bob Boyce's TPU
« Reply #39 on: December 05, 2007, 09:55:53 PM »
'So then I replay thoughts about
MAGNETOSTRICTION... the audible buzzing when inductor pulsates and stretches conductors and affects magnetic impedance and vica-verce (if there is such a thing).    audible/acoustic implies low frequency... what?   Well if that slightly "Off-tune", it would tend to rotate the peak aroud the toroid because its end would land at a slightly shorter landing zone than each previous cycle did if it was anywhere less than 1/2 a circumference shorter than a perfect integer # of circumferences in wavelength.  When it is a little shorter still, say 3/4 of one circumference, it is just like being 1/4 > than a perfect integer # of circumferences long, and the pulse peak rotates the other way.  NOT, same way, opps. BUT it is the OPPOSITE direction that the pulse is being driven!   This landing zone of the 'start' of pulse (or end of pulse if it makes you think easier) seems to be what is being called:

@All,
I do not know what I do not know... level 1 of competence forget all that I said,

but...  It seems the only way to get the wave length fed into the circle to land at shorter and shorter place each time around is when wavelength is < circumference, so EM seems to be correct when he says "Ideally the wave length should fit the circumference", that way the (I will call it) 'acoustic wave' can be made to rotate each way with a slightly shorter or longer wavelength.  If frequency is lower and wave length longer, it can only go opposite to direction of the pulse/wavelength travel. 

If true, this implies that the longitudinal waves are somehow anchored to the Prim 'antenna' that induced them and not free to circle as if they were launched into the new, toroidal antenna it seems.  Comes back to what is "Phase velocity" really and how is it detected.  Dr. said he detected 'nodes' in Owen's old ring, but the details may differ too much for compare.


The attached Longitudinal experiments document from Jason shows that L-waves are standing waves in an antenna and travel very very very slowly in Cu, but faster in air.  These standing waves can be modulated, and can only birth Siamese twin E and M standing waves (at 90 deg' to each other) when the L-waves cut magnetic lines of force...  I must move on, but think this matters.  The doc contains experimental results using 9V batteries and tiny 5mm antenna and is easy reading.


I add this link I found in Bruce's thread that mentions more about why OPPOSITE behavior than expected:
 
http://amasci.com/tesla/tesceive.html  

And impedance basics that must be comprehended for receiving power well it seems.  Thank Bruce, I would link to your post, but can't find now.

I await a new OWON 2CH O'Scope for $427 delivered with 4 1X/10X probes that should arrive Saturday I hope... and IL710-2E digital isolators for my DDS 20(s) good for 100MHz 2500V iso', 5V source.  My other obsolete O'Scope is totally dead so I am blind for a few more days...
So I'll work on making all this work with 9V batteries so I won't need a Supply plugged in or have to touch those metal knobs on it that may charge up.  I'll get several re chargables so I can charge some with bridge rectifier output from the 9V DC2DC PS. 

I refrain from trying to feed this back to the HVPS 9V without a step-down transformer and a regulator after that.  I bet I get opposite of what I expected before last week's HVPS that used less power when it drove that inductor Vs nothing at all.)  Especially after reading Bruce's link again.

Ward

HumblePie

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Re: Ward's Build of Bob Boyce's TPU
« Reply #40 on: December 09, 2007, 12:54:59 PM »
@All,

See SM-10 HVPS's in photo of latest CLK scheme.

Undid the GAL Card CLK'otomy and put on a piggyback Boyce 556 PWM.  10% Film Cap's this time too.  1% in SMD only it seems unless huge bulk order.  DDS 20 in there is last resort as I waiver back to embracing "Just above audio" frequencies, and I recall Dollard Video saying they did not even bother to tune it, and it was an audible frequency they transmitted and tuned with that tunable bridge.   I await my new oscilloscope.

I read this and can see I need 6 channels for closed ended drive soon.   Dirac's Delta Function doc did not make it so clear to me that exact 50% duty-cycle was so unique.   It says at    http://www.allaboutcircuits.com/vol_6/chpt_6/9.html


"You might notice a particular uniqueness to the sound heard through the detector headphones when the potentiometer is in center position (50% duty cycle -- 50% load power), versus a kind of similarity in sound just above or below 50% duty cycle. This is due to the absence or presence of even-numbered harmonics. Any waveform that is symmetrical above and below its centerline, such as a square wave with a 50% duty cycle, contains no even-numbered harmonics, only odd-numbered. If the duty cycle is below or above 50%, the waveform will not exhibit this symmetry, and there will be even-numbered harmonics. The presence of these even-numbered harmonic frequencies can be detected by the human ear, as some of them correspond to octaves of the fundamental frequency and thus "fit" more naturally into the tone scheme. " 

It strikes me that This GAL should be only 3 outputs and more bits in the counter so several harmonics can be tried easily instead of only 4X, just for flexibility, (not to set out on tangent to change Bob's spec's).   The real motivator is that two separate GALs driving only 3 Primes each can be made to run at slightly different frequencies, say 7.8 Hz apart or what ever. SM even tells to study slightly out of phase transformers Bobs says "Just follow SM's clues".  I need to get DOS PALasm working on Vista right after I try it this way with a Scope!    Oh I got all my bookmarks and files permitted recursively BTW.

Edit:  I do need to get out more, but fear getting lost in the threads.  Nothing to fear but fear itself I now read here from Jason months ago: 

http://www.overunity.com/index.php/topic,2873.msg41889.html#msg41889

Also my Magnetic Bias PS with 10Ohm fixed resistor in series with 100 Ohm trimmer.
 Ward


Ward
« Last Edit: December 09, 2007, 08:09:33 PM by HumblePie »

Bob Boyce

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Re: Ward's Build of Bob Boyce's TPU
« Reply #41 on: December 11, 2007, 03:10:54 PM »
Looks like your having lots of fun Ward ;-)

Bob

HumblePie

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Re: Ward's Build of Bob Boyce's TPU
« Reply #42 on: December 14, 2007, 02:45:51 AM »
@All,

I have forgotten to include frequency shutoff's for my GAL design.  I have spent 15 hours trying to understand how to get PALasm to work in Vista and I really want to give up with emm386 issues.  Admin mode won't support full screen, user mode won't read autoexec or config.sys.  I write CD's from Vista and Win98 can not see the files and the new box has no FDD at all.   DOSbox program I can't figure out how to get these files read either.  That Win98 box has internet problems and is hanging by a thread, so I can not even e-mail the needed files to myself.  I turn away from this before I really waste more time.

All I need is to define two more inputs, 'no2x' and 'no1x', so these frequencies can be added one at a time after 4x, not all on at once!  (maybe I have these orders backwards; I will check later).  Switches down-stream are just not intended here.  I have two switches on the top DIP Switch pack I want to use to control this from the source.  I'll try to borrow another Win98 or XP box for now I think.  The decisions are tough for me.  What ever I do, I'll learn there was an easier way later I'm sure.

My piggyback 556 PWM CLK source did not fire up, so I need to solve that wiring issue too.  I did receive my OWON Scope though and am playing with it now and looking for my wiring error.  As soon as it is found, I'll get back on a PALasm solution.  That may be Lattice Semi's 'ABLE' developer program which I have avoided so far.

Ward

Bob Boyce

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Re: Ward's Build of Bob Boyce's TPU
« Reply #43 on: December 14, 2007, 04:44:50 PM »
Hey there Ward. Where are you located?

Bob

HumblePie

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Re: Ward's Build of Bob Boyce's TPU
« Reply #44 on: December 14, 2007, 09:10:33 PM »
@Bob,

I'm in Los Gatos, CA, near San Jose, just above Lexington Reservoir and Lupen Nudist Colony, with view of Redwoods, without being under them.  The colony below keeps out development as they own 160 acres below us... no I can't see them.  The private road here is a mere goat trail and keeps city folks at bay.  Contractors keep taking out my retaining wall posts and taking off like they did not notice, but otherwise, it is the best place I have ever been.  I hear you are really way out in the sticks there in Colorado.  Takes me 13 minutes to get down town to services.  We use CA Dept of Forestry for fire, and Sheriff Vs Police.  Everyone here has their own protection, since emergency response times are longer up here.  My 3 dogs are my favorite.  They are very fine canines.

I found Path and Set statements were at fault for my initial problems getting PALasm working on Win98 box, but now I get "integer divide by 0" and other memory issues.  DOS mode says EMM386 is working, I know I will get it working soon.  Bummer is I will have to drive to programmer location during the weekend once ready to burn again.  I do not want to spend more money on a programmer, especially before I get this software working again.  I did buy two 7Ah wet cells though... more next week or so.  I think I'll replace all the car batteries before I spend too much on those small ones.

Found missing wire I was looking for and all but GAL is ready to run with.  I played with new OWON Scope and love it.  I used speaker wire shorted/folded bifilar pancake to pickup the pulses sent to the small chip isolator inductor used in my 9V battery HVPS.  Pickup works great and must let other lead float to pickup at all.  I see the high and low voltage out peaks are from pulses growing at resonance points as I change frequencies.  More pulse width makes them really grow lots and they follow only the negative going edge of the pulse width.  They do not take on the pulse width as I thought they would.  I was surprised I did not see sine resonance at all.  Just sweet spots where pulse amplitude was maximized while maintaining minimum pulse width.  At low frequency, harmonic pulses fill in between driven pulses, but disappear as pulse width is increased.  I'll put up some photos later.  I need to hook Scope to PC before doing this well.  I must go put in some hours else be short of funds for coming holiday days off.  I hope All are well and building this unit also.

I can already see that I must have PWM's x6.  After I try it this way, I will make that card with 4 556's, one for inboard CLK.  I have advised lab partners to leave drivers off and CLK on the Sig Gen Card, and put the PWM's and drivers on 2nd card, and FETs on last card(s).

Edit-I keep seeing your wife improving and getting better suddenly, in my mind.  I hope she is already well and home with you.

Lastly, this is a request to all who have not enjoyed a FREE AD9959 sample.  Get one!  Remember the storey of the Little Red Hen who would not share with those that did not help make bread?  Well I do and have I sent my AD9959 to Jason for his development work on his Stamp based All-in-one pulser.  I had to take a call to explein why I deserved one.  Best storey is that you are a college student working on a development project for a new Function Generator you expect to sell big.  Please take 5 minutes and fill out samples request.  Cheapo e-mail like Bob does not approve of is banned from filling out samples request unless you write the Sales Rep directly.  Do it please!

Ward
« Last Edit: December 15, 2007, 02:51:41 AM by HumblePie »