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PROJ500 - Braking Chopper Controller

AislingBee·MEng-PROJ500-2025-26·Charlie/KiCad/PROJ500 - Braking Chopper Controller/PROJ500 - Braking Chopper Controller.kicad_pcb

PROJ500 - Braking Chopper Controller PCB layout, top view — open source board by AislingBee

About the PROJ500 - Braking Chopper Controller PCB

PROJ500 - Braking Chopper Controller is an open source PCB design by AislingBee, published on GitHub. It is a 2-layer board measuring 67.2 × 43.3 mm, with 48 components from 29 distinct parts.

Other key parts include the 1EDN8511BXUSA1, LM393, V48SD12005NNFA and LM4040B25FTA. By type, the board carries 17 resistors, 13 capacitors, 7 connectors, 5 diodes and 4 ICs.

From the project

The Github Repository for MEng project 2025/26

Author: Charlie Date: May 2026 Project: MEng PROJ500 — Plymouth Humanoid Robot

This folder contains all hardware and firmware deliverables produced during the 2025–26 academic year. It is structured into three top-level areas:

The robot's electronic architecture is split across two custom boards:

The PDU and RCU communicate over a dedicated management CAN bus (250 kbps). The RCU talks to the Thor AI computer (Jetson/PC) over UDP/Ethernet. Motors are driven by the RCU over two 1 Mbps CAN buses using the RobStride RS04 private protocol.

Main components on the PROJ500 - Braking Chopper Controller

1EDN8511BXUSA1LM393V48SD12005NNFALM4040B25FTA

PROJ500 - Braking Chopper Controller bill of materials (BOM)

48 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
1EDN8511BXUSA1
U1
1
LM393
U2
1
V48SD12005NNFA
U3
1
LM4040B25FTA
LM4040-2.5V
Diodes Incorporated
U4
6
MICROFIT_01X02
MicroFit_01x02
J1, J2, J3, J4, J6, J7
1
01X02_PIN_SOCKET
01x02_Pin_Socket
J5
2
10K(10%)
RV1, RV2
1
SMF14A
D1
1
RED LED
D2
1
SMDJ58A
D3
1
ORANGE LED
D4
1
GREEN LED
D5
5
0.1uF/25V(20%)
C1, C7, C8, C10, C12
3
1uF/25V(20%)
C2, C9, C11
1
220uF/80V(20%)
C3
1
1uF/100V(20%)
C4
1
0.1uF/100V(20%)
C5
1
10nF/25V(20%)
C6
1
220uF/25V(20%)
C13
1
10R(10%)
R1
Show 9 more
QtyPartRefs
1
2.2R(10%)
R2
2
10k(10%)
R3, R17
6
4.7k(5%)
R4, R5, R7, R11, R12, R13
1
4M(5%)
R6
1
1M(5%)
R8
1
46.4k(5%)
R9
1
7.32k(5%)
R10
2
10k(5%)
R14, R16
1
100k(5%)
R15

PROJ500 - Braking Chopper Controller design files

The KiCad project lives in the AislingBee/MEng-PROJ500-2025-26 repository on GitHub; these links point at the commit this page was built from.

PROJ500 - Braking Chopper Controller: common questions

How big is the PROJ500 - Braking Chopper Controller PCB?

The PROJ500 - Braking Chopper Controller measures 67.2 × 43.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PROJ500 - Braking Chopper Controller?

48 components, from 29 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the PROJ500 - Braking Chopper Controller design files?

From the AislingBee/MEng-PROJ500-2025-26 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the PROJ500 - Braking Chopper Controller design in my own project?

The repository has no license, so all rights stay with AislingBee. Use it as a reference, and ask the author before reusing the design.

More boards in MEng-PROJ500-2025-26