4 layers81.1 × 75 mm
Brs flight computer
Big-Red-Sat/Big-Red-Sat-1
This repository contains the designs for the Big Red Sat-1, a 1U CubeSat examining the performance of perovskite solar cells in low earth orbit.
266 parts6
2 layers65 × 45 mm
Current monitor
super-cow-powers/current-probe- Size
- 65 × 45 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 31
- Nets
- 22
- Pads
- 89
- Tracks, vias
- 28, 4
- Routed
- Yes
- KiCad
- KiCad 7 (file 20231007)
- Created
- 19 Dec 2023
- Updated
- 19 Dec 2023
Overview
Current monitor is an open-source printed circuit board by super-cow-powers, from the super-cow-powers/current-probe repository on GitHub. It is a 2-layer board of 65 × 45 mm with 31 parts on 22 nets, routed with 28 tracks and 4 vias.
It is built around the OPA2387DGK and LMV321. Its parts include 13 resistors, 8 capacitors, 3 ICs, 3 connectors and 2 switches.
Main components
2
OPA2387DGK
VSSOP-8-2.75V~-850mV、850mV~2.75V -40℃~+125℃ 1.7V~5.5V 138dB 150pA 2 2.8V/us 25mA 2uV 300pA 3nV/℃ 5.7MHz 570uA 8.5nV/√Hz@1kHz EMI filtering/RF suppression、Zero drift / auto-zero、Reverse-phase input protection Rail-to-Rail Input, Rail-to-Rail Output VSSOP-8 Precision Op Amps ROHSTexas InstrumentsOperational Amplifier
LMV321
SOT-23-5L-2.75V~-1.25V、1.25V~2.75V 0℃~+70℃ 1 10pA 10pA 1MHz 2.1V~5.5V 20mA 20nV/√Hz@10kHz 520V/ms 60uA 70dB 800uV Built-in compensation Rail-to-Rail Input, Rail-to-Rail Output SOT-23-5L Operational Amplifier ROHSJiangsu Changjing Electronics Technology (CJ)Operational Amplifier
Parts
31| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 0u1 | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C4, C6 |
| 3 | 10k 0.05% | Resistor_SMD:R_1206_3216Metric | R2, R3, R4 |
| 2 | 10p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7, C8 |
| 2 | 1k 0.05% | Resistor_SMD:R_1206_3216Metric | R8, R11 |
| 2 | 270R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R7 |
| 2 | 2k2 0.05% | Resistor_SMD:R_1206_3216Metric | R10, R13 |
| 2 | 6k8 0.05% | Resistor_SMD:R_1206_3216Metric | R9, R12 |
| 2 | Conn_01x02_Socket | kicad global library:Dual M6 Banana | J1, J3 |
| 1 | 10R 0.05% | Resistor_SMD:R_1206_3216Metric | R5 |
| 1 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5 |
| 1 | 3*AAA | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BT1 |
| 1 | APX809SA | Package_TO_SOT_SMD:SOT-23 | U1 |
| 1 | Conn_02x04_Odd_Even | Connector_PinHeader_1.27mm:PinHeader_2x04_P1.27mm_Vertical_SMD | J2 |
| 1 | JS203011SCQN SW_DP3T | kicad global library:JS203011SCQN | SW2 |
| 1 | LED | LED_THT:LED_D3.0mm | D1 |
| 1 | LMV321 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | OPA2387 | Package_SO:VSSOP-8_3.0x3.0mm_P0.65mm | U2 |
| 1 | SW_SPDT | Button_Switch_THT:SW_Slide_1P2T_CK_OS102011MS2Q | SW1 |
| 1 | Y14870R01000B9 10m | kicad global library:CSM2512S | R6 |
Questions
How big is the Current monitor PCB?
It measures 65 × 45 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Current monitor use?
31 parts, built around the OPA2387DGK and LMV321. 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 monitor KiCad files?
From the super-cow-powers/current-probe repository on GitHub, at the commit this page was made from: the board is current_monitor.kicad_pcb and its schematic current_monitor.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Current monitor design in my own project?
Its repository states no licence, so its author keeps all rights: ask super-cow-powers before reusing the design.
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