Mini-Inverter
About the Mini-Inverter PCB
Mini-Inverter is an open source PCB design by Milan323-debug, published on GitHub. It is a board, with 19 components from 14 distinct parts.
Other key parts include the IR2153. By type, the board carries 6 resistors, 4 capacitors, 3 diodes, 2 transistors, 1 IC and 1 battery holder.
From the project
Compact 12V DC to 240V AC half-bridge inverter PCB designed in KiCad using IR2153 driver and IRLIZ44N MOSFETs
This is a learning project in power electronics and PCB design. The circuit converts 12V DC input (battery or PSU) to drive the primary of a 240V → 12V step-down transformer in reverse, producing a high-voltage AC output suitable for demonstration and educational purposes.
The oscillation frequency is user-adjustable via an onboard 10K potentiometer, making it easy to tune for the transformer's characteristics.
Main components on the Mini-Inverter
Mini-Inverter bill of materials (BOM)
19 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | IR2153 | DIP-8_W7.62mm | U1 |
| 2 | IRLIZ44N | TO-220F-3_Vertical | Q1, Q2 |
| 1 | 12V | TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal | BT1 |
| 1 | 10K | Potentiometer_ACP_CA6-H2,5_Horizontal | RV1 |
| 1 | Step Down 240V to 12-012V | TerminalBlock_Xinya_XY308-2.54-5P_1x05_P2.54mm_Horizontal | T1 |
| 1 | LED | TerminalBlock_Xinya_XY308-2.54-2P_1x02_P2.54mm_Horizontal | D1 |
| 1 | 1N4007 | D_DO-41_SOD81_P10.16mm_Horizontal | D2 |
| 1 | LED | LED_D5.0mm | D3 |
| 1 | 47uF | CP_Radial_D5.0mm_P2.50mm | C1 |
| 1 | 470 μF | CP_Radial_D6.3mm_P2.50mm | C2 |
| 1 | 0.01uF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C3 |
| 1 | 0.2uF | C_Disc_D3.0mm_W2.0mm_P2.50mm | C4 |
| 3 | 1K | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1, R2, R5 |
| 3 | 22K | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R3, R4, R6 |
Mini-Inverter design files
The KiCad project lives in the Milan323-debug/Mini-Inverter-KiCad repository on GitHub; these links point at the commit this page was built from.
- SchematicMiniinverter.kicad_sch
Mini-Inverter: common questions
How many components are on the Mini-Inverter?
19 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mini-Inverter design files?
From the Milan323-debug/Mini-Inverter-KiCad repository on GitHub, which has the schematic; the links under Design files point to each one.
Can I use the Mini-Inverter design in my own project?
The repository has no license, so all rights stay with Milan323-debug. Use it as a reference, and ask the author before reusing the design.