2 layers19 × 76 mm
Sub
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
15 parts3kApache-2.0
2 layers53.6 × 30.8 mm
Overvolt
pilsbot/overvoltage_protection2Overvoltage and Overcurrent protection PCB based on the MC3423
- Size
- 53.6 × 30.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 10
- Pads
- 39
- Tracks, vias
- 85, 23
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 11 Jun 2021
- Updated
- 23 Jun 2021
Overview
Overvolt is an open-source printed circuit board by pilsbot, from the pilsbot/overvoltage_protection repository on GitHub. It is a 2-layer board of 53.6 × 30.8 mm with 15 parts on 10 nets, routed with 85 tracks and 23 vias.
Its parts include 3 resistors, 2 diodes, 2 connectors, 1 capacitor and 1 IC.
README
README.mdOverview
Overvoltage and Overcurrent protection PCB based on the MC3423 chip and a thyristor.
To "calibrate" the cutoff voltage, disconnect jumper JP2, apply the desired (over-) voltage and turn potentiometer until green LED D1 turns off.
Red LED D2 lights up if fuse is blown (optional).
Renderings
BOM
| ID | Bezeichner | Gehäuse | Stückzahl | Bezeichnung | Anbieter und Referenz |
|---|---|---|---|---|---|
| 1 | D2 | LED_D3.0mm | 1 | RED LED | |
| 2 | U1 | DIP-8_W7.62mm | 1 | MC3423 | https://www.aliexpress.com/item/32265024406.html |
| 3 | Q1 | TO-220-3_Vertical | 1 | 2N6504D | https://www.aliexpress.com/item/1005001367101161.html |
| 4 | JP2 | Pin_Header_Straight_1x02_Pitch2.54mm | 1 | Jumper | |
| 5 | JP1 | SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | 1 | < 11 V | |
| 6 | TimeDelay | CP_Radial_D5.0mm_P2.50mm | 1 | 0-10nF | |
| 7 | RV1 | Potentiometer_Trimmer_ACP_CA6v_Horizontal | 1 | 2nd Half < 10k | https://www.aliexpress.com/item/4000096355520.html |
| 8 | R3 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 1 | 3kR | |
| 9 | R2 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 1 | R | |
| 10 | R1 | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 1 | 1k | |
| 11 | J2 | TerminalBlock_Phoenix_MKDS1.5-2pol | 1 | Input | |
| 12 | J1 | TerminalBlock_Phoenix_MKDS1.5-2pol | 1 | Output | |
| 13 | F1 | Fuseholder5x20_horiz_open_Schurter_0031_8201 | 1 | Fuse | https://www.aliexpress.com/item/32749978743.html |
| 14 | D1 | LED_D3.0mm | 1 | GRN LED | |
| 15 | C1 | CP_Radial_D5.0mm_P2.50mm | 1 | 300µ |
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 0-10nF | Capacitors_THT:CP_Radial_D5.0mm_P2.50mm | TimeDelay |
| 1 | 1k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 2N6504D | TO_SOT_Packages_THT:TO-220-3_Vertical | Q1 |
| 1 | 2nd Half < 10k | Potentiometers:Potentiometer_Trimmer_ACP_CA6v_Horizontal | RV1 |
| 1 | 300µ | Capacitors_THT:CP_Radial_D5.0mm_P2.50mm | C1 |
| 1 | 3kR | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3 |
| 1 | < 11 V | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | Fuse | Fuse_Holders_and_Fuses:Fuseholder5x20_horiz_open_Schurter_0031_8201 | F1 |
| 1 | GRN LED | LEDs:LED_D3.0mm | D1 |
| 1 | Input | TerminalBlocks_Phoenix:TerminalBlock_Phoenix_MKDS1.5-2pol | J2 |
| 1 | Jumper | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | JP2 |
| 1 | MC3423 | Housings_DIP:DIP-8_W7.62mm | U1 |
| 1 | Output | TerminalBlocks_Phoenix:TerminalBlock_Phoenix_MKDS1.5-2pol | J1 |
| 1 | R | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | RED LED | LEDs:LED_D3.0mm | D2 |
Questions
How big is the Overvolt PCB?
It measures 53.6 × 30.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Overvolt use?
15 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 Overvolt KiCad files?
From the pilsbot/overvoltage_protection repository on GitHub, at the commit this page was made from: the board is overvolt.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Overvolt design in my own project?
Its repository states no licence, so its author keeps all rights: ask pilsbot before reusing the design.
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