Spend the day working on getting one of the half bridges working. Ended up going through quite a number of gate drivers until I realised that I was putting them on the board the wrong way round oops! Using an Arduino Due to generate a differential 8kHz signal for testing.
20170806_213134.jpg20170806_213243.jpg20170806_213258.jpg20170806_213310.jpg20170806_213324.jpg20170806_213444.jpg
Now that I have one working half bridge I can test out various values of gate resistors to keep the inductive spikes down and reduce the emi from the board. Once I find a usable value I will then populate the other 2 phases and wire it up to an old vesc to see if it will do anything.
The quality of the boards is excellent for how cheap they were.




Reply With Quote
Bookmarks