HardLabs

Bldc drive

pekkaroi·bldc-drive·hardware/bldc_drive_v2/bldc_drive.kicad_pcb

Bldc drive PCB layout, top view — open source board by pekkaroi

About the Bldc drive PCB

Bldc drive is an open source PCB design by pekkaroi, published on GitHub under the GPL-2.0 license. It is a 2-layer board measuring 98 × 50 mm, with 49 components from 16 distinct parts.

Other key parts include the 7805_NUMB, INA27x and IR2101. By type, the board carries 18 capacitors, 14 resistors, 6 transistors, 5 ICs, 3 diodes and 2 connectors.

It belongs with the robotics & motion designs in this gallery.

From the project

Cheap and simple brushless DC motor driver designed for CNC applications using STM32 microcontroller

This is a project developing a simple BLDC servo controller. It is based on an STM32F103 microcontroller.

Some parts, especially the PID control loop is based on development done by user mcm_xyz in cnczone.com forum. Thank you! Check the thread http://www.cnczone.com/forums/open-source-controller-boards/283428-cnc.html

Second hardware revision with the above findings fixed is published. There are no known issues, two servo drives are succesfully driving my CNC router. Pics and videos to come..

Main components on the Bldc drive

7805_NUMBINA27xIR2101

Bldc drive bill of materials (BOM)

49 components, 16 distinct parts.

QtyPartRefs
1
7805_NUMB
U1
1
INA27x
U2
3
IR2101
U5, U6, U7
6
Q_NMOS_GDS
Q1, Q2, Q3, Q4, Q5, Q6
1
CONN_01X04
P1
1
CONN_01X08
P2
1
10A?
F1
3
UF4007
D1, D2, D3
3
CP
C1, C2, C3
1
CP
C4
11
C
C5, C6, C7, C9, C13, C17, C18, C19 +3
3
22u
C14, C15, C16
1
10m
R1
6
10
R2, R3, R4, R5, R6, R7
6
150
R10, R11, R12, R13, R14, R15
1
NM
R16

Bldc drive design files

The KiCad project lives in the pekkaroi/bldc-drive repository on GitHub; these links point at the commit this page was built from.

Bldc drive: common questions

How big is the Bldc drive PCB?

The Bldc drive measures 98 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Bldc drive?

49 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the Bldc drive design files?

From the pekkaroi/bldc-drive repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Bldc drive design in my own project?

Yes, under the terms of its GPL-2.0 license, which pekkaroi chose for the repository.

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