Suggestion of a improvement
SIBA-FEMD opened this issue · 0 comments
Hi Carl
I have reviewed your pcb and looked through your 3D files and I would suggest the following when releasing or updating on github.
- PCB design and documentation
When using the Altium PCB design tool , print the project as pdf documents , it is a few extra buttons to press
this allows everybody who does not access to Altium Designer PCB tool to see your interesting project.
- schematic pdf
- PCB top side of the PCB as a 3D view as a .pdf document
- PCB bottom side of the PCB as a 3D view as a .pdf document
This the standard practice in industry when when releasing PCB documentation
Also note Altium can save PCB as a step file so you can load it into a cad program like FreeCAD which is GPL 3D drawing CAD program.
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3D model
As you have drawn out several .step & .stl component it would be nice is you showed a . step file for the whole thing
assembled on to the PCB. So a person can see who the whole thing is assemble.Or short video of the thing being rotate in a 3D cad program
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Electronics design of a BDLC motor
You are using a very complicated way to control a BLDC motor.
I a much simpler way to do is using a ARM cortex M0 MCU with a PWM output and a BLDC motor control IC.
Look at the ARM cortex M0 MCU of NXP or ST Microelectronics , they both have free a Software
integrated development environment.For my everyday BLDC motor designs, I use this Texas instrument motor control DRV8306 if you want to use hall sensors
with your motor : ref https://www.ti.com/product/DRV8306If you want to have a really simple low cost BLDC motor solution then using BLDC FOC control that just uses the BLDC motor
coils then look at the Texas instruments DRV 10987 . ref https://www.ti.com/product/DRV10987I have tested and used both of the above IC and I know they are easy to use and design into systems
If you do use Hall sensors, do not use the cheap Chinese sensors, you are just asking from problems.
Look at this company , they make really good Hall sensors for motors :
https://www.melexis.com/en/products/magnetic-position-sensor-ics#linear-hall.
Also be very careful with the Hall sensors alignment relative to the Motor Coils as this can cause a lot of issues.
I get the feeling you are constantly improving your design , and I can see through the different PCB versions you that you have upgraded your design 4 times so far. This why I wrote you this review so that it might give you some thoughts for your next versions.
Good luck with your project.
Best wishes & friendly greetings
SIBA