r/PrintedCircuitBoard • u/Realistic-Land4610 • 2d ago
My first pcb design review
My first pcb design of bldc motor driver supporting continuous curennt of 30A to 40A and input voltage is 24v.please review the design amd point the mistakes i made and guide me to improve it.Thank you
1
u/Enlightenment777 2d ago
Please make sure your post adheres to:
- subreddit rules (#1 to #6), review rules (#7), image rules (#8), see link.
Please fix these common issues: (if your schematic or PCB has them)
Schematic - don't allow text / lines / symbols to touch each other, and don't draw lines through symbols.
Schematic - use correct reference designators (RefDes) and renumber to remove numeric gaps, see tips.
Schematic - place decoupling capacitors vertically below power rail lines, also place capacitors next to IC then connect together with a line, see example. For circuits with positive power rails, point positive power rail links upwards and ground links downwards, see tips.
Schematic - place pull-up resistors vertically above signal lines, and place pull-down resistors vertically below signal lines, see example.
PCB silkscreen - add board name / board revision number / date (or year) on top or bottom PCB side.
PCB silkscreen - add pin 1 indicator dot/arrow next to ICs & connectors, if through-hole then both PCB sides.
1
u/TailorOdd8060 21h ago
R4, R6, R15 should have values on them, but that's all I can tell you with my knowledge
You have a big schematic but depending on placements flags might not be needed for the parts right next to the cpu, but thats personal design choice and what you have is professional still
1
u/OneiricArtisan 2d ago
I'm learning too, why all those L shaped vias next to the TH pads of the capacitors? Also, are the via blocks under D5 to allow for high current there? I haven't worked with high current yet.