2 layers231.1 × 106.7 mm
2 layers95 × 60 mm
Pre carga inteligente
e3ufsc/precharge-module- Size
- 95 × 60 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 54
- Nets
- 35
- Pads
- 123
- Tracks, vias
- 210, 289
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 31 Jul 2026
- Updated
- 31 Jul 2026
Overview
Pre carga inteligente is an open-source printed circuit board by e3ufsc, from the e3ufsc/precharge-module repository on GitHub. It is a 2-layer board of 95 × 60 mm with 54 parts on 35 nets, routed with 210 tracks and 289 vias.
It is built around the LM393. Its parts include 27 resistors, 5 capacitors, 3 diodes, 3 transistors and 2 ICs.
Main components
1Parts
54| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R6, R7, R13, R16, R18, R19, R21, R27 |
| 5 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4, R11, R14, R22, R25 |
| 4 | 100nF | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | C1, C2, C3, C4 |
| 3 | 100 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R12, R15, R26 |
| 3 | 220K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R8, R20 |
| 3 | NMOS | sparkparts:Compact_TO-220-3_Vertical | Q1, Q2, Q3 |
| 3 | UP1007 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | D1, D2, D3 |
| 2 | GND | sparkparts:1PAD_8x7mm | GND_IN1, GND_OUT1 |
| 2 | LM393 | Package_DIP:DIP-8_W7.62mm_Socket | U1, U2 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_ISO7380_Pad | H1, H2 |
| 2 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R23, R24 |
| 2 | S | Resistor_SMD:R_2010_5025Metric_Pad1.40x2.65mm_HandSolder | Path1, Path2 |
| 2 | SANYOU_SRD_Form_C | Relay_THT:Relay_SPDT_SANYOU_SRD_Series_Form_C | K1, K2 |
| 2 | Screw_Terminal_01x02 | TerminalBlock_MetzConnect:TerminalBlock_MetzConnect_Type055_RT01502HDWU_1x02_P5.00mm_Horizontal | J1, J2 |
| 1 | 15K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9 |
| 1 | 22uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C7 |
| 1 | 3K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10 |
| 1 | 47(5W) | Resistor_THT:R_Axial_DIN0617_L17.0mm_D6.0mm_P30.48mm_Horizontal | R17 |
| 1 | 47K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | Buck DC/DC | Buck:XL7015 | B1 |
| 1 | LOGO | LOGO | G*** |
| 1 | Vin | sparkparts:1PAD_8x7mm | Vin1 |
| 1 | Vout | sparkparts:1PAD_8x7mm | Vout1 |
Questions
How big is the Pre carga inteligente PCB?
It measures 95 × 60 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pre carga inteligente use?
54 parts, built around the LM393. 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 Pre carga inteligente KiCad files?
From the e3ufsc/precharge-module repository on GitHub, at the commit this page was made from: the board is pre carga inteligente.kicad_pcb and its schematic pre carga inteligente.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pre carga inteligente design in my own project?
Its repository states no licence, so its author keeps all rights: ask e3ufsc before reusing the design.
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