It has been almost 3 decades I am using LTSPICE, never , not even once, had I ever come across a test bench not work!
A bit of the history
- upgraded to latest w10 version of LTSPICE VII ( I think)
- it took several hrs( done over night, ??)
Then wanted to model & simulate a circuit using LT1713 ( upon search, it came up as the fast comparator)
Then selected a current feedback amplifier LT6559.
With a few other parts, got a new schematic done & ran the simulation.
zippo. Key waveforms not computed ...
Naturally, you suspect I did not follow the instructions for using the comp or the amp.
so I opened the comparator "Test Bench".
Lo & behold, the test bench does not run as expected!
So went & checked if the upgrade worked properly...well, it does.
I am not uploading the comparator test bench.
Any idea what is up with this model?
appreciate any help in figuring out what is wrong here.
PS: Helmutt Sennenlwald still here?
I'm working to find someone who can help. I'll update you when I have more info.
Thnx also for deleting the 2nd txt about “where is my txt”.
Add labebel "+V" at the output line of V1.
The test fixture has also been updated to include this fix. Run "Sync Release" to update.
I have lost all contacts with Linear Technology folks…I am sure David Greene would have figured out the issues….where is he?
Who can help figure out some key characteristics of LT1249 which do not figure in the data sheet. It will apply to the similar part( I forget now what that part number is)
It is a non-traditional application but with HUGE potential!
Need support: I will even travel to SJ if they need to really unjam the situation.
Can we sign an NDA for this tough very quickly?
Robin gangopadhya, Ph.D
MFR: Century Electronics, Thousand Oaks
Deasing: 5447 Pine Cone road
LA Crescent4a, ca91214
Tel _818523 8735