user TURBO?s replication of Steven Mark?s TPU ?

[giantkiller]

GK,

I am working on the clock circuit using a VCO, PLL and dividers. Waiting on parts right now. I will send you a PM when I have it completed.

You should try a regular old 9vdc battery dude, portable design. you can also use 8v and 12v regulators to isolate the clocks from the supply rails and reduce noise, also use a 47uf capacitor or 2 for filtering as well.

I have a Motorola 3 phase motor driver kit. I don't know how stable it is. I will look at that tonight also.

--giantkiller.

[giantkiller]

Hello GiantKiller:

I think I can speak for most of us following this thread, as soon as a full set of simple plans and instructions is available, many of us will start replicating the TPU. So GiantKiller, you have nothing to worry about. We will follow your footsteps and build our own TPUs.

They can't kill all of us. And if more than one person can replicate this, the first one to replicate it isn't necesarily the biggest threat. I am in this 100% till the end. No amount of threat can stop me. I guess I am a FE rebel!

Peace,
Omar

Thanks for the support. You have no idea what jumped on my soul this morning when TPU#4 shot up in temperature. Absolutely phenominal feelings of being on top of the world!

You ask all the questions you want about this build. I know I might not have it all down but if you had a TPU fired up and these results I experienced just jumped in your face you'd be runnin' loose too. After being in electronics for 30 years, when things get this hot this fast something has got to blow and it didn't.

I am in the next phase of clock control and tuning. This is the real dangerous part. It could also show the limitations of this TPU#4 winding specifications & configurations.

I am not sure how much I want to go with this version. I stated way back in October that I wanted a 4x4 array of SM17s. CTGlabs has a 15 inch and I am waiting to hear how that one powers up.

I now need to switch over to build some kind of shielding environment. I don't think sticking my hand in a microwave or sitting next to a homebrew MRI is good safety.

--giantkiller. Ask away to build away.

p.s. Thank you all for the submissions over the last months. This is a very great thing we do here!

[Spherenot]

Do you all feel there is adequate documentation here to reproduce your own devices and tests?

I will let you know.  I am still trying to hunt down and copy all of your sh!t before you freak out and delete it.  I do not know if I would not take the same action if I were in your shoes.  I am still way out in the pasture on the other side of the fence that you crossed-over a few days ago.

I am taking a shotgun approach to saving your information; I can glean out the important bits later.  I have the text from pages 49 thru 57 and I am still going back over all of these pages to collect attachments.  I was in such a groove going down one of your posts that I accidentally copied the picture of your kitchen.

Being on the other side of the fence for a few days has probably dulled your feeling, not your memory, of what it is like over here.  I assume this is why you are asking the question.

I suggested in a previous post that you have earned your own topic.

You may have had this idea before you crossed over, but if I was able to make such progress I would, from my current perspective, make simple step by step replication procedure in one document and post it EVERYWHERE.  It is not so bad; it is actually kind of fun.

I had to make step-by-steps when I started as an automotive wire-harness engineer.  Sometimes changes needed to be incorporated after parts were produced.  At first I used the harness print and my imagination to write them.  The rework folks were confused.

Later, I always did the procedure myself as I was writing it.  I could see the value in that when I had to add extra steps for working around details which do not stand out on the print as they do in real life.

For example: the harnesses are bundled, looped and paper-taped, for shipping.  There is a bundle view somewhere on the print but usually not in the area on which you are working.  Very easy to fu(k-up step one,? I said step one for god's sakes!

1. Remove two paper bundle tapes.

Not to mention the last step:

12. Replace both paper bundle tapes.

Yeah, I know, how stupid can people be.  We are. 

Perhaps as you go through making TPU#5 you might notice a few bundle-tape-like issues of your own.  Pease jot them down for us pasture grazers over here.

The more of us that cross-over with you, the more you will not be alone.   

You know how I feel about buying a scope right now.  If you say that you will put together step-by-steps for TPU#5 then I promise you that I will fork over the plastic for a scope to test my replication.  I may even buy one sooner if I can piecemeal enough scraps together from the many pages.

I hope I answered your question.  Eh, too much typing, not enough copying.

[gyulasun]

Congrats GK
I agree  the best way is to share the info and replicate the heck  out of it so there is no "single point"... I am rereading it all  and will get wound within a day or two...some  points are a little tough but most of the info is there. Thanks
BTW I found a nice 555 at Centerpointe Elect. FG-500K $38  will go 1-100 khz
Ay more details would be great !!!!!

the 555 here is a timer chip, right? the lousy ones can be to 1.5 mhz. and not $38bucks? u mean $0.38? But they drift bad and that is good starting out. Or get a real good stable clock and add the thermal shutoff attached to the coil and a foot operated dead man switch.

Remember: drift is you power up friend.

--giantkiller.

Hi GK and All,

I think 'boxofsparks' means the type of a function gen which costs $38 but call it a 555.

You probably have heard of the CMOS version of the 555 timer IC, that is LMC555 or TLC555  (but not including here the MC1555) and they work up to 3MHz in astable mode from 5V supply voltage. See data sheet: http://www.national.com/pf/LM/LMC555.html
And I found a very 'handsome' Design Idea at electronic design magazin site: a new stable RC pulse generator circuit with the 555 chip, see a printer friendly link here:
http://www.elecdesign.com/Articles/Print.cfm?ArticleID=6235 

So I think three of this pulse generator could serve as a stable frequency source for driving directly the power MOSFETs. Independent duty cycle and frequency adjustment!

My question for you on your TPU is: how much the drain currents are when you switch on the MOSFETs?

regards
Gyula

[giantkiller]

I understand your concern. I would not delete anything. It is already published and backed up.
Sure is fun to rock the planet though, eh?

--giantkiller.