I am very happy to receive such good suggestions, and I am also happy to discuss the development of VESC with everyone.
Regarding my identity, I am indeed an employee of Makerbase, but here I prefer to be an independent designer. As I said at the beginning, I will not attach additional links to the discussion in the future. Because this is not the job I should be doing.
The purpose of my coming to the forum is also very simple, which is to collect the functional requirements of VESC and the content that needs to be improved in the design. For example, the board I designed has functions that need to be improved. I will work on it in the next version or redesign it. I think this is What I should do as a designer.
I’ll answer other questions below:
- The shutdown function was actually implemented by Benjamin in VESC MK5. Its function is to turn off the power of the control end. For example, the 84200HP motherboard can be seen more intuitively (because the control board and driver board are separated). When it is turned off After controlling the power supply of the board, there is no power loop with the battery, and the theoretical consumption is 0 (currently I can only display values >10mA, and I have not observed the current);
- Ceramic capacitors are not unnecessary, but are limited by the structure, and our tests found that ceramic capacitors are more effective for small currents, while for large currents it mainly depends on electrolytic capacitors, and my design is more concerned with large currents;
- The 75200 line has been readjusted, and it is expected that the company will sell a new version in the next two days (of course, I am not sure about the time, because it has nothing to do with me);
- Regarding 5V and 3V3 noise, I will upload pictures of the oscilloscope after a while;
- Regarding the design of mechanical mechanism, I would like to have a more in-depth study with you, because this method is indeed unstable at present. Can you explain it in detail?
- Regarding the screw terminals, I have suggested it to the company before, but it was not accepted. The reason given is: the patch screw posts will produce a large force to pull the copper skin during the screw tightening process, which can easily cause copper skin. came off on the PCB.
- It will take me some time to understand the design requirements of the Bluetooth module.