Half bridge
paltatech·half-bridge·pcb design/IGBT_board.kicad_pcb
About the Half bridge PCB
Half bridge is an open source PCB design by paltatech, published on GitHub. It is a 4-layer board measuring 162 × 100 mm, with 249 components from 76 distinct parts.
Other key parts include the ISO5852S, LM5030, LM1117IMP-v.v, SI8710B and OPA2172. By type, the board carries 84 resistors, 80 capacitors, 25 diodes, 20 transistors, 13 test points and 11 ICs.
From the project
TO247 half bridge module for EVs
70kw nominal, 150kw peak TO247 IGBT to allow for easy silicon upgrades and power capabilities. Its also cheaper. Watercooled Embedded security features (desaturation, soft turn off, reinforced isolation)
Will need some cnc milling, components, a pcb, and some spot welding
Made open source with open source tools (kicad, freecad)

Main components on the Half bridge
Half bridge bill of materials (BOM)
249 components, 76 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | ISO5852S | SOIC-16_7.5x10.3mm_Pitch1.27mm | U1, U3 |
| 1 | LM5030 | TSSOP-10_3x3mm_Pitch0.5mm | U2 |
| 1 | LM1117IMP-v.v | SOT-223 | U5 |
| 2 | SI8710B | SDIP6 | U8, U11 |
| 2 | OPA2172 | SOIC127P600X175-8 | U9, U12 |
| 1 | AMC1301 | SOIC127P1032X265-8 | U10 |
| 2 | LM3480 | SOT-23 | U13, U14 |
| 12 | IGBT | TO-247-HV | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +4 |
| 2 | NPN | DPAK-2 | Q13, Q17 |
| 4 | PNP | DPAK-2 | Q14, Q18, Q19, Q20 |
| 2 | CSD19533Q5A | TEXAS-Q5A | Q15, Q16 |
| 1 | CONN-100MIL-M-2x8 | CONN-100MIL-M-2x8 | J1 |
| 2 | DESAT | CONN-100MIL-F-1x1 | J2, J3 |
| 1 | PHASE | CONN-100MIL-F-1x1 | J4 |
| 1 | PHASE CURRENT CONN | TE-292227-4 | J5 |
| 3 | MM3Z12VB | SOD-323F | DZ1, DZ2, DZ3 |
| 2 | SMCJ440CA | DIOM7959X265 | DZ4, DZ5 |
| 1 | 5v | SOT-23 | DZ6 |
| 1 | FUSE | RESC3216X60 | F1 |
| 1 | TRANS-3-1CT | wurth_750342312 | T1 |
Show 56 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SW1 | TEST-SMD-SMALL | TP1 |
| 1 | SW2 | TEST-SMD-SMALL | TP2 |
| 2 | IN | TEST-SMD-SMALL | TP3, TP13 |
| 4 | GND | TEST-SMD-SMALL | TP4, TP8, TP11, TP14 |
| 1 | 24v | TEST-SMD-SMALL | TP6 |
| 2 | 15v | TEST-SMD-SMALL | TP7, TP10 |
| 2 | -15v | TEST-SMD-SMALL | TP9, TP12 |
| 1 | FAULT | LED-0603 | DS1 |
| 1 | PWR_GOOD | LED-0603 | DS2 |
| 1 | RESET | LED-0603 | DS3 |
| 4 | SK310A-LTP | do214ac | D1, D11, D16, D18 |
| 2 | RB168MM-60TR | SOD-123F | D2, D12 |
| 4 | MURS160-13-F | Diode-SMB_Standard | D3, D4, D13, D14 |
| 8 | RB160MM-60TR | SOD-123F | D5, D6, D7, D8, D9, D10, D22, D23 |
| 2 | 1N4148W | SOD-123 | D15, D20 |
| 2 | GSOT03C | SOT-23 | D17, D21 |
| 1 | TVS | Diode-SMB_Standard | D19 |
| 2 | ES2J-LTP | DIOM5226X203 | D24, D25 |
| 8 | 100nF | CAPC1608X55 | C8, C36, C60, C68, C78, C80, C83, C84 |
| 6 | 1uF 50v | CAPC2012X70 | C9, C10, C11, C37, C38, C39 |
| 22 | 10uF 50v | CAPC3216X70 | C12, C13, C22, C23, C24, C25, C26, C27 +14 |
| 8 | 100nF 50v | CAPC2012X70 | C14, C15, C28, C29, C30, C31, C42, C43 |
| 2 | 100pF COG | CAPC2012X70 | C16, C44 |
| 4 | 1uF | CAPC1608X55 | C17, C56, C64, C85 |
| 1 | 22nF | CAPC1608X55 | C18 |
| 1 | 22uF 16v | CAPC2012X70 | C19 |
| 3 | 1nF | CAPC1608X55 | C20, C55, C63 |
| 1 | 470pF | CAPC1608X55 | C21 |
| 7 | 47uF 50v | c_elec_6.3x7.7 | C32, C33, C34, C35, C45, C62, C70 |
| 2 | 10uF | CAPC1608X55 | C46, C48 |
| 2 | 5nF 50v | CAPC2012X70 | C47, C49 |
| 3 | 100pF | CAPC1608X55 | C50, C77, C82 |
| 2 | 4.7uF | CAPC2012X70 | C51, C52 |
| 6 | 10nF | CAPC1608X55 | C59, C61, C67, C69, C86, C87 |
| 1 | 330pF | CAPC1608X55 | C79 |
| 1 | 2.2uF | CAPC1608X55 | C81 |
| 2 | 1R | RESC3225X60 | R1, R2 |
| 22 | 20R | RESC3225X60 | R3, R4, R5, R6, R7, R8, R9, R10 +14 |
| 10 | 10k | RESC1608X50 | R25, R26, R42, R43, R70, R71, R72, R76 +2 |
| 2 | 10R | RESC1608X50 | R27, R44 |
| 2 | 4.7k | RESC1608X50 | R28, R45 |
| 4 | 12R | RESC2012X50 | R29, R30, R46, R47 |
| 4 | 3R | RESC6432X70 | R31, R32, R48, R49 |
| 2 | 1k | RESC2012X50 | R33, R50 |
| 2 | 0R | RESC1608X50 | R34, R37 |
| 1 | 26.7k | RESC1608X50 | R35 |
| 2 | 1.15k | RESC1608X50 | R36, R40 |
| 6 | 22R | RESC1608X50 | R38, R39, R54, R56, R59, R61 |
| 1 | 0.22R | RESC3216X60 | R41 |
| 7 | 1k | RESC1608X50 | R51, R52, R53, R57, R58, R85, R88 |
| 3 | 12R | RESC1608X50 | R55, R62, R83 |
| 2 | 4.7k | RESC2012X50 | R60, R67 |
| 4 | 390R | RESC1608X50 | R68, R74, R93, R94 |
| 4 | NI | RESC6432X70 | R69, R75, R89, R90 |
| 2 | 100R | RESC2012X50 | R73, R79 |
| 2 | 1M | RESC3216X60 | R82, R84 |
Half bridge design files
The KiCad project lives in the paltatech/half-bridge repository on GitHub; these links point at the commit this page was built from.
Half bridge: common questions
How big is the Half bridge PCB?
The Half bridge measures 162 × 100 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Half bridge?
249 components, from 76 distinct parts. The full bill of materials is listed on this page.
Where can I download the Half bridge design files?
From the paltatech/half-bridge repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Half bridge design in my own project?
The repository has no license, so all rights stay with paltatech. Use it as a reference, and ask the author before reusing the design.