2 layers116.8 × 61 mm
FullCapacitorBankAdapter
gongminmin/ImpulseDrive
A preliminary design of a plasma engine for spacecraft propulsion
45 parts4MIT
2 layers85.1 × 30.5 mm
Switch
gongminmin/ImpulseDrive4A preliminary design of a plasma engine for spacecraft propulsion
- Size
- 85.1 × 30.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 40
- Nets
- 28
- Pads
- 90
- Tracks, vias
- 137, 0
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 30 May 2020
- Updated
- 24 Sep 2022
Overview
Switch is an open-source printed circuit board by gongminmin, from the gongminmin/ImpulseDrive repository on GitHub, published under the MIT licence. It is a 2-layer board of 85.1 × 30.5 mm with 40 parts on 28 nets, routed with 137 tracks and 0 vias.
It is built around the B1205S-1W, B1212S-1W and RFP30N06LE-VB. Its parts include 13 resistors, 8 connectors, 5 ICs, 4 diodes and 3 capacitors.
Main components
3README
README.mdImpulse Drive
In Star Trek universe, impulse drive is a propulsion system of spacecrafts for interplanetary travel. This project is trying to design a real-world impulse drive. The basic characteristics of this engine are
- Electric propulsion
- Large thrust
- Long specific impulse
- No or little moving parts
- Good scalability
- Low cost
We'd like to make it easy to implement, so people can build it as a hobby project.
NOTE: Please turn on git LFS when cloning this project.
Method
There are many different engine designs for spacecraft propulsion, check wikipedia for a list. The only one design among them that fits these requirements is magnetoplasmadynamic thruster, a.k.a, MPDT or MPD thruster. More details in MPD.
Our design is based on MPDT, with several significant improvements.
Design
The principle of our design, and a detailed introduction of modules are in Design
Disclaimer
MPD thruster is operated by LETHALLY high voltage and current. If you don't have enough knowledge and experiences on high voltage electric, please keep extreme cautions on insulation.
Directories
- Circuit folder is the electric design of the system. The files can be open by KiCad
- 3DModel folder is the 3D model design of some components. It's in Blender format.
- Doc folder contains some documents
License
ImpulseDrive is distributed under the terms of MIT License. See LICENSE for details.
Parts
40| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 2.2K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10, R11, R12, R13 |
| 4 | LED | LED_THT:LED_D3.0mm_FlatTop | D1, D2, D3, D4 |
| 3 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R6, R9 |
| 3 | 4.7K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R5, R8 |
| 3 | 680 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R4, R7 |
| 3 | Heatsink | Power:Heatsink_TO220_15x10mm | HS1, HS2, HS3 |
| 3 | PC817 | Package_DIP:DIP-4_W7.62mm | U1, U2, U3 |
| 3 | RFP30N06LE | Package_TO_SOT_THT:TO-220-3_Vertical | Q1, Q2, Q3 |
| 2 | 10uF | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C1, C3 |
| 1 | 2.2uF | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C2 |
| 1 | B1205S | Converter_DCDC:Converter_DCDC_muRata_CRE1xxxxxxSC_THT | U5 |
| 1 | B1212S | Converter_DCDC:Converter_DCDC_muRata_CRE1xxxxxxSC_THT | U4 |
| 1 | From Control | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Horizontal | J7 |
| 1 | Fuse | Power:Fuseholder_Cylinder-5x20mm_ASI_PTF-76-10_Horizontal_Open | F1 |
| 1 | Main Power In | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J1 |
| 1 | To Capacitor | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J3 |
| 1 | To Coil | Connector_Wire:SolderWirePad_1x02_P3.81mm_Drill1mm | J5 |
| 1 | To Coil Signal | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J8 |
| 1 | To Control Power | Connector_Wire:SolderWirePad_1x02_P3.81mm_Drill1mm | J6 |
| 1 | To Injector | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J4 |
| 1 | To Starter | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J2 |
Questions
How big is the Switch PCB?
It measures 85.1 × 30.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Switch use?
40 parts, built around the B1205S-1W, B1212S-1W and RFP30N06LE-VB. 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 Switch KiCad files?
From the gongminmin/ImpulseDrive repository on GitHub, at the commit this page was made from: the board is Circuit/Power/Switch.kicad_pcb and its schematic Circuit/CapacitorBank/CapacitorBank.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Switch design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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