The IC inside the CDI

[tzr-v4]

Here the disaster...

I've ordered a pack of 5 from ebay seller (see previous message).

I've soldered an IC support and maybe make it removable with little connector...

[Louis]

  Olivier. That is not looking nicely.
Hopefully the damage is only on the TA4234A.

Have checked it on the 3MA CDI, there I have a T8050P YPVS driver
Will this give problems in the future, when using your firmware witch is designed for the TA4234A?

I'm still focusing myself on the ignition part first, ones that is ok ill go to the ypvs circuit.


Update,

for your confidence Olivier, just destroyed my Oem IC
(Was forgotten that I bypassed the diode on pin 13)

Tried to de-solder the Oem ic lose from my spare CDI but that didn't go that well if you are in a rush.
So measurements on the Oem Ic are for the moment history.

[tzr-v4]

I'll try to check the datasheet of your driver T8050P

I wait my IC to come from Hong Kong 

[tzr-v4]

IC STA434A are on their way from Hong Kong 

[Louis]

That is good news.

I have ordered a pulse generator, in order to get more data from the Oem IC
http://www.transmic.net/en/simulator.htm
So hopefully, ill have better steady readings.

Also started with building my trackbike 3 pipes
http://www.tzr3ma.com/building-the-track-bike-3-pipes.html
Hope to do more this weekend.

But all on a slow speed, as it is getting colder by the day

[tzr-v4]

I'll start again to do some testing when I receive the ICs.

Nice work on your pipes... I'll like to have your metal skills. 

[tzr-v4]

Will waiting the IC to arrive I check the web for TZR and STA434A and found this on KR1 forum

CDI board looks identical to TDR250 one... same components with same names is white...

Does the KR1 shares the same CDI as the Yamies !!!

maccas you were on the post...

http://www.kr-1s.co.uk/forum/viewtopic.php?f=13&t=11301

[Louis]

Well it could be, as its a DENSO to.
Probably the IC would be different, but still interesting to know

This also mean, that when we have it all working the Icp12 can work on a Kr1-s to

[tzr-v4]

A French KR1 fan will try to send a Kawa CDI to check.

Maybe Maccas will tell us too.

[Need4speed]

""all development is done through repeated mistakes - and analysis""

Keep the spirtit - well done guys...

[tzr-v4]

Yes.

Problem is when you are trying to go fast because kids are asking questions all the time then you make a mistake...
Can't blame the kids... I should have wait.

Picture 1 : the TDR250 YPVS driver
Picture 2 : the KR1 KIPS driver

[Louis]

Problem is when you are trying to go fast because kids are asking questions all the time then you make a mistake...
Can't blame the kids...

I Don't have kids asking questions at the wrong times, but still I'm making mistakes.


With a bid off luck, the pulse simulator is almost ready
Have ordered a 3MA-00 CDI for future testing/reading out

The score now is;

1) 3MA-00 CDI on my test bench
2) 3MA-00 CDI fore development (ones ready, it will be the first one i use on my bike)
3) 3MA-01 CDI on my test bike (perhaps later reading it out to see the difference between 00 and 01)
4) 3MA-00 CDI for reading out (get the ignition curves and PV curves)

[tzr-v4]

Parts arrived from Hong Kong.
So tests will start again 

[Louis]

Had a bid spare time today, so start measuring the full throttle curve (1 curve)
(as that one will be important for the experiment)

Measured it like this

Where I used the grid points to calculate the delay (seen in yellow in the graphic)
More details here:
http://www.tzr3ma.com/digital-reading-oem-curve.html

Came with the following results:
26Hz----780Rpm------3,55ms
47Hz----1410Rpm-----2,05ms
66Hz----1980Rpm-----1,49ms
104Hz---3120Rpm----749us
140Hz---4200Rpm----577us
177Hz---5310Rpm----465us
209Hz---6270Rpm----411us
242Hz---7260Rpm----362us
273Hz---8190Rpm----318us
310Hz---9333Rpm----328us
344Hz---10310Rpm---352us
376Hz---11280Rpm---401us
407Hz---12210Rpm---455us

So now will be the trick to calculate it back to degrees.
Hopefully Olivier has some tricks to do this

[Louis]

First results are known (we are not sure if it is correct, working on it)
But it has the looks of a curve (no strange peeks at certain rpm's)
Also need to tell, that this is my new CDI unit, perhaps i have forgotten to connect something and this is a save curve.

What we have looks like this