2 layers66.9 × 74.5 mm
2 layers82 × 72 mm
Current shunt
flaviut/current_shuntThis is a simple current-shunt board designed to make it easy to measure current with an oscilloscope probe.
- Size
- 82 × 72 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 6
- Pads
- 30
- Tracks, vias
- 44, 10
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 23 Nov 2022
- Updated
- 23 Nov 2022
Overview
Current shunt is an open-source printed circuit board by flaviut, from the flaviut/current_shunt repository on GitHub. It is a 2-layer board of 82 × 72 mm with 20 parts on 6 nets, routed with 44 tracks and 10 vias.
Its parts include 10 connectors and 5 resistors.
README
README.mdCurrent shunt
This is a simple current-shunt board designed to make it easy to measure current with an oscilloscope probe.
Fabrication
See the releases section for gerbers suitable for building at JLCPCB.
Building
Putting the device together is simple enough. The only thing that needs explaining is the small disconnected pads next to the 10Ω and 1Ω resistors. The intent is for a thin wire to be connected from the top of the resistor to this pad in order to provide something that approximates a 4-wire connection.
Now that I think about this a bit more, this is overkill, but I'm not planning on producing another copy of this board.
Case
case.FCStd contains a 3d-printable, snap-in case for this board. For a .stl file, see the releases.
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | Conn_01x01 | Connector:Banana_Jack_1Pin | J1, J2, J3, J4, J6, J8, J10, J12 |
| 5 | TestPoint_2Pole | Library:TestPoint_2Pads_Pitch2.54mm_Drill1mm | TP1, TP2, TP3, TP4, TP5 |
| 2 | Conn_01x01 | Connector_PinHeader_1.00mm:PinHeader_1x01_P1.00mm_Vertical | J11, J13 |
| 1 | 1 | Resistor_THT:R_Axial_DIN0617_L17.0mm_D6.0mm_P7.62mm_Vertical | R4 |
| 1 | 10 | Resistor_THT:R_Axial_DIN0617_L17.0mm_D6.0mm_P7.62mm_Vertical | R5 |
| 1 | 100m | Resistor_SMD:R_2512_6332Metric | R3 |
| 1 | 10m | Resistor_SMD:R_2512_6332Metric | R2 |
| 1 | 1m | Resistor_SMD:R_Shunt_Vishay_WSR2_WSR3 | R1 |
Questions
How big is the Current shunt PCB?
It measures 82 × 72 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Current shunt use?
20 parts. 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 Current shunt KiCad files?
From the flaviut/current_shunt repository on GitHub, at the commit this page was made from: the board is current_shunt.kicad_pcb and its schematic current_shunt.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Current shunt design in my own project?
Its repository states no licence, so its author keeps all rights: ask flaviut before reusing the design.
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