2 layers100 × 100 mm
BQ76pl455a
g-rahul/BQ76PL455A-EVM-Clone
This respository contains low cost design files for BQ76PL455A-EVM Clone.
255 parts5
2 layers43.9 × 33.5 mm
GDB HalfBridge
mrblackchris/GDB_HalfBridgeHalf bridge driver using IR2104 for up to 600V DC supplies
- Size
- 43.9 × 33.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 25
- Nets
- 23
- Pads
- 60
- Tracks, vias
- 104, 11
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Oct 2026
- Updated
- 19 Oct 2026
Overview
GDB HalfBridge is an open-source printed circuit board by mrblackchris, from the mrblackchris/GDB_HalfBridge repository on GitHub. It is a 2-layer board of 43.9 × 33.5 mm with 25 parts on 23 nets, routed with 104 tracks and 11 vias.
It is built around the TBA 2-1213, IR2104PBF and MRA4007T3G-FS. Its parts include 6 connectors, 5 capacitors, 5 resistors, 4 ICs and 2 diodes. It belongs with the interfaces and adapters boards of this library.
Main components
3TBA 2-1213
SIP,19.6x7.6mm-40℃~+90℃ 1 1.5kV 10.8V~13.2V 120mVp-p 130mA 15V 2W 30kHz~200kHz 470uF 84% Plastic encapsulated type Short Circuit Protection、Automatic fault recovery Unregulated type SIP,19.6x7.6mm Isolated Power Modules ROHSTRACO POWERIsolated Power Modules
IR2104PBF
PDIP-8-40℃~+125℃ 100ns 10V~20V 130mA 150ns 150uA 2 270mA 50ns 680ns Enable shutdown、Interleaved conduction protection、Dead-time control Half-Bridge IGBT、MOSFET PDIP-8 Gate Drivers ROHSInfineon TechnologiesGate Drivers
MRA4007T3G-FS
SMA(DO-214AC)Diodes - General PurposeFUXINSEMI
README
README.mdHalf-Bridge Gate Driver Board
A compact gate driver PCB for controlling an external half-bridge power stage. The design combines an IR2104 half-bridge driver, optocoupled PWM and shutdown inputs, and an onboard DC/DC converter for the gate driver supply.
Design overview
- Gate driver: IR2104 for high-side and low-side gate control.
- Control inputs: Two ACPL-P343 optocouplers for the PWM and shutdown signal paths.
- Driver supply: TBA2-1213 DC/DC converter with a nominal 12 V input and 15 V output.
- High-side supply: Bootstrap circuit using an MRA4007T3G diode and capacitor.
- Gate outputs: Separate high-side and low-side gate connections with series gate resistors.
- PCB: Two copper layers, through-hole connection pins, and four mounting holes.
Connections
The connector names below match the schematic. Refer to the schematic for pin assignments and signal references.
| Reference | Schematic label | Purpose |
|---|---|---|
| Jsup1 | VSup | Nominal 12 V supply input |
| Jpwm1 | PWM_IN | PWM control input |
| Jsd1 | SDIN | Shutdown control input |
| J2 | GateHi | High-side gate connection |
| J3 | SourceHi | High-side source / switching-node connection |
| J4 | GateLo | Low-side gate connection |
| J1 | SourceLo | Low-side source connection |
| J12 | DrainHi | High-side drain connection |
| J11 | Temp1 | Auxiliary connection labeled Temp1 |
Project files
| File | Description |
|---|---|
| GDB_HalfBridge.kicad_pro | KiCad project |
| GDB_HalfBridge.kicad_sch | Circuit schematic |
| GDB_HalfBridge.kicad_pcb | PCB layout |
*.gbr | Exported Gerber manufacturing files |
*.drl | Plated and non-plated drill files |
| gdb_halfbridge.png | 3D board render |
Open GDB_HalfBridge.kicad_pro in KiCad to view or edit the schematic and layout. Regenerate manufacturing files after making changes to the design.
Hardware validation
This repository documents the board design. Operating voltage, switching frequency, thermal performance, and isolation capability of the assembled board require validation for the intended application.
Parts
25| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100n | Capacitor_SMD:C_0805_2012Metric | C1, C3, C4, C5 |
| 3 | 1k | Resistor_SMD:R_0805_2012Metric | R1, R2, R3 |
| 2 | 1 | Resistor_SMD:R_0805_2012Metric | R4, R5 |
| 2 | ACPL-P343 | Package_SO:SSO-6_6.8x4.6mm_P1.27mm_Clearance7mm | U2, U3 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 4V7 | Diode_SMD:D_SOD-123 | D2 |
| 1 | DrainHi | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J12 |
| 1 | GateHi | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J2 |
| 1 | GateLo | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J4 |
| 1 | IR2104 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | MRA4007T3G | Diode_SMD:D_SMA | D1 |
| 1 | PWM_IN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | Jpwm1 |
| 1 | SDIN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | Jsd1 |
| 1 | SourceHi | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J3 |
| 1 | SourceLo | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J1 |
| 1 | TBA2-1213 | Converter_DCDC:Converter_DCDC_TRACO_TBA2-xxxx_Single_THT | U6 |
| 1 | Temp1 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J11 |
| 1 | VSup | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | Jsup1 |
Questions
How big is the GDB HalfBridge PCB?
It measures 43.9 × 33.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the GDB HalfBridge use?
25 parts, built around the TBA 2-1213, IR2104PBF and MRA4007T3G-FS. 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 GDB HalfBridge KiCad files?
From the mrblackchris/GDB_HalfBridge repository on GitHub, at the commit this page was made from: the board is GDB_HalfBridge.kicad_pcb and its schematic GDB_HalfBridge.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the GDB HalfBridge design in my own project?
Its repository states no licence, so its author keeps all rights: ask mrblackchris before reusing the design.
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