Hi Jörg,
I think I got the calculation right.
Made PulsBreedte integer. That got rid of some of the strange effects. Then I shifted >>9. It was Ok. But I made that >>10
to match it better with the original firmware.
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I now flashed the new code in my second GTI300W
Nothing blew up, and basic functions seem to work
But my second GTI300W, is a "parts" unit. The AC FETs (H-Bridge?) are all blown. (had nothing to to with the new firmware).
I had one blown because of an accident, and after that it seemed as if every remaining FET was "damaged" by that.
Replaced one (1) and the remaining FETs all blew at regular intervalls. Replaced the next broken one, and after a while the next FET blew...
What FET's are used in the AC section of the PowerJack?
Do you know some good substitutes?
- The originals are 30NM60ND.
- They are pretty pricey at my local elektronics store.
- I can get 10NM60ND too. They are pretty cheap, but lower current...Good enough for a test drive?
Greetings,
Viele Grube,
(trying to brush up my German
)