2 layers
BSPD kicad project
BYU-Racing/circuit_design
All of the low voltage circuit schematics and PCB designs
27 parts
2 layers127 × 69.9 mm
Version2 HV RML
BYU-Racing/circuit_designAll of the low voltage circuit schematics and PCB designs
- Size
- 127 × 69.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 32
- Nets
- 19
- Pads
- 62
- Tracks, vias
- 84, 4
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 22 Feb 2024
- Updated
- 4 Feb 2026
Overview
Version2 HV RML is an open-source printed circuit board by BYU-Racing, from the BYU-Racing/circuit_design repository on GitHub. It is a 2-layer board of 127 × 69.9 mm with 32 parts on 19 nets, routed with 84 tracks and 4 vias.
It is built around the CNY65 and TLV1701QDBVRQ1.
Main components
2README
README.mdcircuit_design
All of the low voltage circuit schematics and PCB designs
Deprecated designs are in the 2024 folder, all new stuff is in 2025
cheeseburger
Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1M 1/8W 1206 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | 1M, 1M, 1M, 1M, 1M |
| 4 | MountingHole_Pad | MountingHole:MountingHole_4.3mm_M4_Pad | HV- BATTERY, HV- SENSE, HV+ BATTERY, HV+ SENSE |
| 3 | .1uF 0805 | Capacitor_SMD:C_0805_2012Metric | .1uF, .1uF, .1uF |
| 2 | 100k 1/8W 0805 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | 100k, 100k |
| 2 | 100k 5W TH | Resistor_THT:R_Axial_Power_L25.0mm_W9.0mm_P30.48mm | 100k 5W THT, 100k 5W THT |
| 1 | 11k 1/8W 0805 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | 11k |
| 1 | 1M (same as voltage divider) | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | 1M hysterisis |
| 1 | 1k 1/8W 0805 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | 1k |
| 1 | 2.2k 1/8W 0805 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | 2.2k |
| 1 | 900k 1/4W 1206 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | 900k |
| 1 | CNY65 | mouser optocoupler:DIPS1524W40P762L960H620Q4N | optocoupler |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | TLV1701QDBVRQ1 | mouser comparator:SOT95P280X145-5N | comparator |
| 1 | ~ | RML_custom_footprints:SCWN03W8-12_based_on_DIP-24_W15.24mm | DC_to_DC |
The 25 most common of 32 parts.
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Questions
How big is the Version2 HV RML PCB?
It measures 127 × 69.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Version2 HV RML use?
32 parts, built around the CNY65 and TLV1701QDBVRQ1. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Version2 HV RML KiCad files?
From the BYU-Racing/circuit_design repository on GitHub, at the commit this page was made from: the board is 2025/RML/V2_seperate_board_HV/Version2_HV_RML.kicad_pcb and its schematic 2025/BSPD/BSPD kicad newest version/BSPD kicad project.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Version2 HV RML design in my own project?
Its repository states no licence, so its author keeps all rights: ask BYU-Racing before reusing the design.