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RE: CDI gr8flyer55 - 12/8/2012 10:07 PM  1 votes
Gompy



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Status: offline 		Adrian, it's very simple......heat is lost energie.
If you don't want to lost energie, you have to change your designe.
Don't make the component bigger, but find the ideal designe.
Sometimes the ideal designe have more components.
The designe I use for now have 95% effective power without heat and use less current.
But if I use the big componets the board will be as big like a greatingcard.
I have find differend components and can make a "small" board with a small transformer EF15.
The board (45x80mm) I have build can produce 130mJ at 10.000 rpm with a EF20 transformer.
Nice to use for my bike with twin cilinder, but I burn a hole into the piston of your modelengine.
One cilinder modelenigines use ~25mJ for 20.000 rpm, so the board can be smaller.
The boards you and John are using have less then 10mJ at 10.000 rpm.
You get a spark, but if the pressure will be a littlebit higher, the spark will be gone.
Same if the rpm will be higher or the Voltage lower, the spark will also be gone.
I don't say your system is wrong, but it don't use the power effective.
I have at high (15.000) rpm allmost the same HV-Voltage if I run low (1.000) rpm
Thats the differend between less or more components, but I have a more reable system.

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RE: CDI gr8flyer55 - 12/8/2012 10:07 PM  1 votes
gr8flyer55


 

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Status: online 		RE: CDI gr8flyer55
Last posted software on electrofunnel works great for me as is. I'm not changing a thing except for the curves I just tried. If anyone decides to use it with the new "B" board, for everything to be operational, all 3 jumpers must be in place. If you are using switches, they must all be closed makin contact to ground. Just some info in case someone wondered how they are setup. Mine work.

John


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RE: CDI gr8flyer55 - 12/8/2012 10:12 PM  1 votes
Gompy



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quote:

ORIGINAL: gr8flyer55

All I will say about my board here will sum it up in one sentence.

I have been flying with it in a plane with a Clarence Lee built K&B .61 engine that turns in excess of 14,000 rpms without any misfire, NGK ME8 1/4-32 plug, 20 to 1 gas oil mix, Perry carb, for over 15 years and I couldn't be happier.

John



A nitro engine runs also without a bougie, petrol engines can do too.
If the engine is hot enough, make enough rpm and have enough pressure it can run without a spark.
The heat into the spark wil ignite the next rotation without a real spark.
The little spark you produce at 14.000 rpm is just enough to burn the petrol.

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RE: CDI gr8flyer55 - 12/8/2012 10:16 PM  1 votes
Gompy



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quote:

ORIGINAL: gr8flyer55

RE: CDI gr8flyer55
Last posted software on electrofunnel works great for me as is. I'm not changing a thing except for the curves I just tried. If anyone decides to use it with the new ''B'' board, for everything to be operational, all 3 jumpers must be in place. If you are using switches, they must all be closed makin contact to ground. Just some info in case someone wondered how they are setup. Mine work.

John



And now your using with the B-timerboard PIC type ?

I have still see into the Exelsheet the MCLRE is OFF.


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RE: CDI gr8flyer55 - 12/8/2012 10:23 PM  1 votes
gr8flyer55


 

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Status: online 		Rob, it is still off. I'm using it the way it is for now till Jake decides to change everything. I have no problems running it right now though.

John


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RE: CDI gr8flyer55 - 12/8/2012 11:10 PM  1 votes
CH Ignitions


 

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Status: offline 		Rob ,John,
Your design is more complex and will work better no dealt about that with better efficienty.
Your design and John design ...both works and in 2 different ways of doing the job.
Beside you 2 and Niemy no one else come to the table with something different or with feedback...yes I did it and works let's go with this design or that.
That is what I tried to say, make both, get them on testing and the most relaiable, smaller and lighter...some of those criterias will win.
I have not looked to see the design A or B who made it, how it works...my plate is full as it is ...more to that... wify wanted... lighting decorations
on outside the hose and all around and funny thing...as I...since I know my self I never hang Christmas lights outside in shorts and no t-shirt and decorate
palm trees...funny as molases to me.....but I guess we all have to deal with changes if is hanging lights in Florida palms or what choice of PCB design.
Here are couple of pictures and let's bring the Christmas spirit and be more forgiveing and tolerant one with another.
Life is short as it is and harmony is better than fight, Love is better than hate .


Adrian

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RE: CDI gr8flyer55 - 12/8/2012 11:19 PM  1 votes
Gompy



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Status: offline 		Bikeboard.

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RE: CDI gr8flyer55 - 12/9/2012 2:59 AM   
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Status: offline 		Adrian,

It doesn't feel like Christmas at first to me unless the snow is piled up on the sides of the driveway and side walk?

I've spent a few Christmases in Florida and I still enjoyed it.


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RE: CDI gr8flyer55 - 12/9/2012 3:48 AM   
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Status: offline 		Website had a bad link. Sorry everybody!

I fixed the link so that the new "B" board version will download right. Been busy with finals so I haven't had much free time.


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< Message edited by w8ye -- 12/9/2012 4:44 AM >

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RE: CDI gr8flyer55 - 12/9/2012 11:37 AM   
Gompy



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RE: CDI gr8flyer55 - 12/9/2012 9:29 PM   
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http://www.electrofunnel.com/CDI-2012/CDI-2012_v1.0.zip
and
http://www.electrofunnel.com/CDI-2012/CDI-2012_v1.0_B.xlsm
are the links to the v1.0 and v1.0B files.


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< Message edited by w8ye -- 12/10/2012 12:22 AM >

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RE: CDI gr8flyer55 - 12/9/2012 9:35 PM   
captinjohn


 

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Status: offline 		Keep up the good work here ...very interesting !  Capt,n

< Message edited by captinjohn -- 12/11/2012 5:30 PM >

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RE: CDI gr8flyer55 - 12/9/2012 10:58 PM  1 votes
Gompy



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Status: offline 		Everybody is building timerboard version B, but no one is missing R9 on the board ?
Solution for the time be, if you remove LED2 you have to replace the LED2 with a resistant 3k9.

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RE: CDI gr8flyer55 - 12/10/2012 1:05 AM  1 votes
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Status: offline 		Jake, I think Gompy was talking about this link.

"CDI-2012.zip This is the timer and HV board schematics.
These are preliminary schematics only! The board files are not included, as they don't exist yet."

This is the link that is bad, on your web page.

Ray

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RE: CDI gr8flyer55 - 12/10/2012 2:16 AM  1 votes
gr8flyer55


 

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Status: online 		Rob, I actually forgot I drilled extra holes in the boards for the 4.7k resistor and had added it when I was building them. Just figured it was a mistake and fixed it on the fly. Kind of like the extra 4.7 volt Zener that's missing from the board in this revision of the B board. I figured it wasn't needed and left it out, everything worked fine for me.

John

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RE: CDI gr8flyer55 - 12/10/2012 2:33 AM  1 votes
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Status: offline 		I'm sorry Gompy but, I can't remember how you are measuring / calculating the actual spark output?

Ray

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RE: CDI gr8flyer55 - 12/10/2012 11:43 AM  1 votes
Gompy



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Status: offline 		I doit with this advance device.

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RE: CDI gr8flyer55 - 12/10/2012 12:09 PM  1 votes
Gompy



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Status: offline 		@Jack,

I don't can see wat you have change into version 1_B

We deside there are no other timerboards, we use timerboard B with a 12F683
If switch on pin 4 (GP3) will be closed, the PIC will be RESET.

* Pin 4(GP3) = Tied low on some timer boards, no function assigned *
=====================================
No pull-ups, if grounded table 1 must be active.

* Pin 2(GP5) = Table Switch, internal pull-up, ground for Table2 *
=====================================
MCLRE is still OFF, pin 4 do not have the RESET funtion.

__CONFIG(FOSC_INTOSCIO & WDTE_OFF & PWRTE_ON & MCLRE_OFF & CP_OFF & CPD_OFF & BOREN_OFF & IESO_OFF & FCMEN_OFF);
=====================================
This lines I don't understand, switch ON - switch OFF ?

WPU = 0b000100; // Internal pull-ups on GP2,4,5
OPTION_REG = 0b00000000; // pullups on, falling edge, Tmr0
=====================================

There is also a delay of 100msec for the killswitch to reduce the noice.
It takes 16 turns befor the killswitch is gone work.
I reduce the noise allready with a capacitor, the delay for the killswitch can be removed.

< Message edited by Gompy -- 12/10/2012 12:49 PM >

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RE: CDI gr8flyer55 - 12/10/2012 2:29 PM  1 votes
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ORIGINAL: Gompy

I doit with this advance device.


Cute, I got one of those also but, it doesn't measure voltage or current. Ok I'll put it this way, where and how are you measuring the current and voltage  to get the milli-joules, spark power? What are you using to measure the current and voltage of the spark? Are you measuring the spark gap with the spark gap open or with a 1 ohm resistor shorting the spark gap or are you using a 25 to 50 Meg ohn resistor to simulate the gap?

Ray

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RE: CDI gr8flyer55 - 12/10/2012 2:38 PM  1 votes
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Status: offline 		What do we need a reset (MCLRE) on a simple circuit when we have a power switch? IMO we can use it for something else more important like; General purpose input, Slave Select input, Timer1 Gate input, or Programming voltage.

Ray

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RE: CDI gr8flyer55 - 12/10/2012 2:49 PM  1 votes
gr8flyer55


 

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Status: online 		Maybe in some situations the reset function would be of some use, but I have never had a problem with a pic requiring it to be reset to restart the program. If the engine stops for some reason like maybe lack if fuel, broken wire etc. , the program goes back to the main loop anyway. Anything under 2 revs per second tells the pic the engine is not running and it restarts anyway. If there would be some other condition that causes it, I have never run into it in the years of using it.
I would be in favor of leaving it turned off and use the pin for something else later.

John


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RE: CDI gr8flyer55 - 12/10/2012 4:39 PM   
captinjohn


 

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Status: offline 		anyone need a small 1/4x32 sparlplug???

https://www.google.com/search?sourceid=navclient&aq=hts&oq=&ie=UTF-8&rlz=1T4GZBN_enUS434US434&q=NGK+ME8+1%2F4-32+plug

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RE: CDI gr8flyer55 - 12/10/2012 8:33 PM  1 votes
Gompy



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Status: offline 		THE PIC 12F683 DON'T GET OTHER FUNCTIONS ANYMORE.

Jack don't want spent more time to the 12F683 software !
The only thing I can think about to use pin4 will be a RESET-function.
Only a small piece of txt change with a funtion to pin 4.

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RE: CDI gr8flyer55 - 12/10/2012 9:20 PM  1 votes
gr8flyer55


 

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Status: online 		Jake said he was very busy between work, school finals, and I guess the girlfriend too. If it would work, I'd just edit the source code myself in the excel sheet. You can view it, but not sure if you can edit it while viewing and still have it correct when you try to compile it. I've done it before, so if there's no further changes being made to the code I'll edit it and see what happens, if anything.

I know why you want the reset Rob. Not a problem either way for the rest of us I would think.
On my 3 boards it doesn't matter if the jumper is on or not as the software has it turned off right now as Rob pointed out. I guess now I have a 4th and final version B board to etch and build tonight. Might as well make a few while I'm at it in case this project really takes off. Well, I doubt it. The only person that requested a board so far was Jake. Maybe this isn't such a hot project after all eh?
The only thing I use the features on is my engine test stand. Once testing is over, no need for a second advance table. I already have a kill switch on my ignition board, so there goes that one too. Oh well. It starts, runs well, and it works, what more can I say.


John


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RE: CDI gr8flyer55 - 12/10/2012 10:00 PM  1 votes
Gompy



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Status: offline 		A specialy for you John......BUT i want to have my RESET if you accept.

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