Thank you. It’s a medium-low powered board —10A— with peak —13A—, with the goal to make it “stackable” and as dense as possible. First iteration will be DRV8332, gate power section and inline current sense with ACS711. I am aiming at 4 to 6 layers copper. The board is not “arduino footprint compatible”, that is, the leads and inputs will be completely custom.
Second iteration will include stm32f4x section for the MCU, probably 405, 407, 411 or whatever else is in stock, two-stage power section and a lead-out for stacking with an external controller, communication probably CAN bus since I will need anywhere between 6 to 12 boards per controller which will be a much larger one, perhaps 767 or similar.
I am at a breadboard stage and have a hardware engineer working on the overall design and copper.
The help I need is advice only and if anyone is really interested I can ship a prototype however it is not realistic to expect people to alpha-test a board simply out of curiosity.
I need someone to list test cases I can perform to make sure I am not missing anything and if I get stuck perhaps give me some input. Also on features that could be developed and I am not thinking at that point, such as “nice to have”.
This is not a commercial effort, as in I am not planning to sell this as an end product, it’s an internal private development effort (not a hobby).
When the hardware engineer is at some stage reasonable I will post the design.
At that point any of your questions or inputs are appreciated.
The issue I was having was that the output didn’t seem to properly form from the PWM signal. If you are familiar with the expected 3PWM waveform let me know Ill post the oscilloscope waveform.