Forge launcher
About the Forge launcher PCB
Forge launcher is an open source PCB design by ericpearson1313, published on GitHub. It is a 6-layer board measuring 109 × 115 mm, with 218 components from 70 distinct parts.
Other key parts include the LT3420, TLV74318, AD7352, TLV74325 and LMO78_03-1.0. By type, the board carries 83 capacitors, 76 resistors, 18 ICs, 8 transistors, 7 diodes and 6 connectors.
It belongs with the test & measurement and dev boards & breakouts designs in this gallery.
From the project
Model rocket launch controller implemented in a FPGA chip
A long-time hobby of mine is model rocketry where I build and fly models rockets in a club setting. A launch controller has a push button to electrically launch the models safely from a distance. The controller feeds current from a battery, through a push button and lead wires to a resistive heater to initiate the launch. For something so simple it causes consternation when the launch countdown reaches zero, button is pressed, and nothing, due to a fault of the controller! Years of itteratively building launch controllers has not yet acheived personal perfection in launch controller design…
Main components on the Forge launcher
Forge launcher bill of materials (BOM)
218 components, 70 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LT3420 | MSOP-10_3x3mm_P0.5mm | U1 |
| 2 | TLV74318 | SOT-23-5 | U2, U12 |
| 2 | AD7352 | TSSOP-16_4.4x5mm_P0.65mm | U3, U17 |
| 2 | TLV74325 | SOT-23-5 | U4, U23 |
| 1 | LMO78_03-1.0 | Converter_DCDC_Murata_OKI-78SR_Horizontal | U5 |
| 1 | 4945 | Converter_DCDC_Murata_OKI-78SR_Horizontal | U6 |
| 1 | MCP1416 | SOT-23-5 | U7 |
| 2 | AMC3330 | SOIC-16W_7.5x10.3mm_P1.27mm | U8, U10 |
| 2 | ~ | QFN-24-3x3mm | U9, U19 |
| 1 | AT25xxx | SOIC-8_3.9x4.9mm_P1.27mm | U11 |
| 1 | LM809 | SOT-23 | U13 |
| 1 | AMC3302 | SOIC-16W_7.5x10.3mm_P1.27mm | U14 |
| 1 | IR2127 | SOIC-8_3.9x4.9mm_P1.27mm | U18 |
| 1 | STR2P3LLH6(Pfet) | SOT-23 | Q1 |
| 1 | 2N3904 | SOT-23 | Q2 |
| 3 | MMBT3904 | SOT-23 | Q3, Q9, Q10 |
| 2 | IPD60R145 | TO-252-2 | Q4, Q6 |
| 1 | IRLML0060TRPBF | SOT-23 | Q5 |
| 1 | ASE-48MHz | Oscillator_SMD_Abracon_ASV-4Pin_7.0x5.1mm_HandSoldering | X1 |
| 2 | Conn_02x13_Odd_Even | PinSocket_2x13_P2.54mm_Vertical | J1, J2 |
Show 50 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | Jack | CalTest_CT3151 | J4, J7 |
| 1 | Conn_01x06 | PinHeader_2x03_P2.54mm_Vertical_SMD | J5 |
| 1 | Barrel_Jack | BarrelJack_CUI_PJ-063AH_Horizontal | J9 |
| 2 | ~ | BatteryHolder_Keystone_2462_2xAA | BT1, BT2 |
| 1 | GDT 500V | GDT_SM1812 | GD1 |
| 1 | Speaker | PUIAudio_SMT_0825_S_4_R | LS1 |
| 1 | RM-1212S | RM-1212 | PS1 |
| 1 | SW_SPST | SW_E-Switch_EG1224_SPDT_Angled | SW1 |
| 1 | ARM | SW_SPST_HP03 | SW3 |
| 1 | LAUNCH | SW_SPST_HP03 | SW10 |
| 6 | ~ | TestPoint_Keystone_5000-5004_Miniature | TP1, TP2, TP3, TP4, TP5, TP6 |
| 1 | PA0367A | PA0637A Pulse Coil 3D | TR1 |
| 1 | BAV99 | SOT-23 | D1 |
| 1 | ARM | LED_0603_1608Metric | D2 |
| 1 | CONT | LED_0603_1608Metric | D4 |
| 1 | GSD2004S | SOT-23 | D5 |
| 2 | ES1J | D_SMA | D6, D7 |
| 1 | STPSC10065G2 | TO-263-2_TabPin1 | D9 |
| 3 | Ferrite | L_0603_1608Metric | FB5, FB6, FB7 |
| 1 | 390uH 5A | L_Toroid_Vertical_L35.6mm_W17.8mm_P12.70mm_Pulse_E | L1 |
| 21 | 1u | C_0603_1608Metric | C1, C3, C5, C7, C10, C11, C14, C16 +13 |
| 7 | 0.01u | C_0603_1608Metric | C2, C4, C6, C31, C33, C44, C65 |
| 6 | 10u | C_1206_3216Metric | C8, C12, C21, C59, C61, C63 |
| 18 | 0.1u | C_0603_1608Metric | C9, C13, C22, C27, C46, C49, C53, C60 +10 |
| 1 | 0.022u 630v | C_1206_3216Metric | C15 |
| 1 | 100u 20v | C_Radial_D5.0mm_H7.0mm_P2.00mm | C17 |
| 10 | 4.7u | C_1206_3216Metric | C18, C19, C35, C36, C132, C133, C134, C135 +2 |
| 9 | 0.001u | C_0603_1608Metric | C23, C37, C47, C48, C71, C74, C77, C78 +1 |
| 1 | 100u 400V | CAP_radial_18mmdia_38mmh | C24 |
| 1 | 100u 400V | CAP_radial_18mmdia_38mmh_L | C25 |
| 8 | 2.2n | C_0603_1608Metric | C29, C30, C38, C39, C54, C55, C56, C57 |
| 3 | 100K | R_0603_1608Metric | R1, R2, R29 |
| 1 | PWR163S-25-3301J 3K3 25W TE Connectivity Passive Product | TO-263-2_TabPin1 | R3 |
| 12 | 10K | R_0603_1608Metric | R4, R6, R7, R9, R10, R11, R12, R14 +4 |
| 1 | PWR163S-25-3301J 10R TE Connectivity Passive Product | R_0603_1608Metric | R5 |
| 1 | 2K | R_0603_1608Metric | R8 |
| 1 | 51.1K | R_0603_1608Metric | R13 |
| 4 | 1K | R_0603_1608Metric | R15, R31, R46, R108 |
| 14 | 22R | R_0603_1608Metric | R16, R17, R18, R19, R23, R47, R48, R50 +6 |
| 4 | 1.99M | R_0603_1608Metric | R20, R21, R80, R81 |
| 3 | 10R | R_0603_1608Metric | R22, R33, R34 |
| 7 | 0R | R_0603_1608Metric | R24, R49, R51, R99, R103, R104, R110 |
| 3 | 10.01K | R_0603_1608Metric | R25, R28, R82 |
| 2 | 0 | R_0603_1608Metric | R26, R55 |
| 1 | 1.001K | R_0603_1608Metric | R27 |
| 3 | 47K | R_0603_1608Metric | R30, R52, R79 |
| 6 | np | R_0603_1608Metric | R32, R37, R38, R41, R42, R45 |
| 8 | 51R | R_0603_1608Metric | R35, R36, R39, R40, R61, R62, R63, R64 |
| 1 | 3k3 | R_0603_1608Metric | R44 |
| 1 | 0.005R 1W | R_2818 current sense | R102 |
Forge launcher design files
The KiCad project lives in the ericpearson1313/fpga_rocket_launcher repository on GitHub; these links point at the commit this page was built from.
Forge launcher: common questions
How big is the Forge launcher PCB?
The Forge launcher measures 109 × 115 mm, has 6 copper layers and is 1.6 mm thick.
How many components are on the Forge launcher?
218 components, from 70 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Forge launcher design files?
From the ericpearson1313/fpga_rocket_launcher repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Forge launcher design in my own project?
The repository has no license, so all rights stay with ericpearson1313. Use it as a reference, and ask the author before reusing the design.
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