Christopher Xu
UNITED STATES OF AMERICA • + Follow
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Description
Ø32 BLDC Controller
Small robots often use servos or small brushed DC motors, but they are not as power dense as the brushless DC (BLDC) motors commonly found in drones. Called the Ø32 because the M2 mounting holes are on a 32mm diameter circle, this project aims to control 7-15V motors with position feedback, while fitting almost completely behind a 2304 drone motor.
Youtube channel with short videos
Application of motor controller
Specs:
- M2 mounting holes on a 32mm diameter circle
- 27mm x 27mm x 0.8mm, 4-layer, 1oz copper PCB
- 7-15V input, built-in voltage sensing
- Internal temperature sensor
- 12-bit magnetic angle sensor
- 3 shunt current sensing and overcurrent protection
- 2x 2-pin JST-SH connectors for RS-485 communication, allowing daisy chaining
- 1x 4-pin JST-SH connector for Serial Wire Debug programming and UART output
- 3.3V auxiliary output
Critical components:
- STSPIN32F0A BLDC gate driver and Cortex-M0 MCU
- MA702 magnetic angle sensor
- CSD88584Q5DC dual MOSFETs (50A continuous)
Firmware here: https://github.com/qwertpas/O32controller_FW
Schematic and Layout
CAD-Custom parts and enclosures
Dec 29,2023
952 views
Ø32 BLDC Controller
Position control for drone motors. Put more power into small robots by using BLDC motors with field-oriented control.
952
2
4
7.83 (3)
Published: Dec 29,2023
Download Gerber file 6
BOM(Bill of materials)
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File Last Updated: 2023/12/29 (GMT+8)
File update record
2023-12-2911:20:58
CAD or technical drawing file is updated.
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- Engineer Jan 11,2024
- Christopher Xu Dec 29,2023
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3 votes
- 3 USER VOTES
7.83
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