2 layers89.4 × 66.9 mm
E foc
embedded-pro/e-foc-hardware
hardware to be used with https://github.com/embedded-pro/e-foc
186 parts
2 layers67.5 × 62 mm
Power2
Yaotinx/power-supplyA dual-output switch-mode power supply designed in KiCad for AC-DC conversion operating at a 55kHz switching frequency.
- Size
- 67.5 × 62 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 46
- Nets
- 41
- Pads
- 143
- Tracks, vias
- 231, 10
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 7 Sep 2026
- Updated
- 7 Sep 2026
Overview
Power2 is an open-source printed circuit board by Yaotinx, from the Yaotinx/power-supply repository on GitHub. It is a 2-layer board of 67.5 × 62 mm with 46 parts on 41 nets, routed with 231 tracks and 10 vias.
It is built around the IRS2104STRPBF, CSD88537ND and GBL610_T0_00601. Its parts include 14 resistors, 9 capacitors, 6 connectors, 4 ICs and 4 diodes.
Main components
3
IRS2104STRPBF
SOIC-8-40℃~+150℃ 10V~20V 130mA 150ns 150uA 2 270mA 35ns 680ns 70ns Half-Bridge IGBT、MOSFET Under Voltage Protection SOIC-8 Gate Drivers ROHSInfineon TechnologiesGate DriversCSD88537ND
SOIC-8-55℃~+150℃ 1.4nF 133pF 14nC@10V 16A 19mΩ@6V 2 N-Channel 2.1W 3.6V 5.2pF 60V Half-Bridge N-Channel SOIC-8 MOSFETs ROHSTexas InstrumentsMOSFETsGBL610_T0_00601
GBL-2Bridge RectifiersPANJIT International
README
README.mdSwitch-Mode Custom Power Supply (SMPS)
A dual-output switch-mode power supply designed in KiCad for AC-DC conversion operating at a 55kHz switching frequency.
📌 Project Overview
This project features the complete schematic capture, footprint assignment, and 2-layer Printed Circuit Board (PCB) design for a high-efficiency switch-mode power supply. Built around a TL494 PWM controller, the board regulates dual outputs and utilizes half-bridge gate drivers with dual N-channel MOSFET power stages.
⚙️ Hardware Specifications
- PWM Controller: TL494 Pulse-Width Modulation control circuit operating at 55kHz.
- Gate Drivers: IRS2104 Half-Bridge Drivers for high-side and low-side N-channel MOSFET control.
- Power Stage: CSD88537ND Dual N-Channel Synchronous Block MOSFETs.
- PCB Architecture: Custom 2-layer board layout designed in KiCad, routing 40+ nets across 14 unique component types.
- Diagnostics: Traced signal integrity across PWM generation, gate driver outputs, and switching nodes using digital multimeters to evaluate and isolate feedback network performance.
Parts
46| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R3, R4, R5, R6, R7, R8, R10, R11 |
| 4 | 1 nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C6, C7, C8, C9 |
| 3 | LOGO | LOGO | G***, G***, G*** |
| 2 | 10 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R13, R14 |
| 2 | 100 nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C4, C5 |
| 2 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D4, D5 |
| 2 | 1N5819 | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D2, D3 |
| 2 | 20k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R12 |
| 2 | 470 uF | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C2, C3 |
| 2 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J5, J6 |
| 2 | IRS2104STRPBF | Gate:SOIC127P600X175-8N | IC1, IC2 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2 |
| 2 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-2-5.0-H_1x02_P5.00mm_Horizontal | J3, J4 |
| 2 | TL494CDR2G | TL494:SOIC127P600X175-16N | IC3, IC4 |
| 1 | 1000 uF | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C1 |
| 1 | 150 Uh | Inductor_THT:L_Radial_D6.0mm_P4.00mm | L1 |
| 1 | 220 uH | Inductor_THT:L_Radial_D6.0mm_P4.00mm | L2 |
| 1 | 33k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9 |
| 1 | 694106301002 | Barrel:694106301002 | J1 |
| 1 | CSD88537ND | BetterMosfet:SOIC127P600X175-8N | Q1 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J7 |
| 1 | GBL610_T0_00601 | Bridge:GBL610_T0_00601 | BR1 |
Questions
How big is the Power2 PCB?
It measures 67.5 × 62 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Power2 use?
46 parts, built around the IRS2104STRPBF, CSD88537ND and GBL610_T0_00601. 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 Power2 KiCad files?
From the Yaotinx/power-supply repository on GitHub, at the commit this page was made from: the board is Power2/Power2/Power2.kicad_pcb and its schematic Power2/Power2/Power2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Power2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Yaotinx before reusing the design.
Similar boards
- 4 layers100 × 100 mm
Power feed
liorknafo/power-feed-manual-mill
DIY stepper power feed for a SIEG X3.5D mill: electromagnetic clutch, RP2040 controller PCB, Rust firmware, build123d CAD
195 parts - 4 layers75 × 46.4 mm
- 2 layers63.2 × 40.7 mm
LED Board
CornellMarsRover/KiCad
This folder serves as the central repository for all KiCad PCB designs across multiple years. Each subfolder corresponds to a specific design cycle and contains all associated board files, schematics, and documentation.
74 parts - 2 layers83.3 × 65.3 mm
SimonShield
github-linguist/linguist
Language Savant. If your repository's language is being reported incorrectly, send us a pull request!
46 parts14kMIT - 2 layers27.8 × 22.3 mm
Audio
byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.
46 parts4.3kMIT - 2 layers370 × 11 mm
Daylight XXL
VoronDesign/Voron-Hardware
Cool Hardware designed by the Voron Design group
46 parts1.1kGPL-3.0 - 2 layers87.5 × 50 mm
