From Scrap to Power: 300W Inverter Using ATX Transformer ( No Rewind ) | JLCPCB

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In this video, I present a 300W inverter circuit that directly uses a transformer from a damaged ATX computer power supply without rewinding. This is a very practical DIY solution that allows you to reuse old PC power supplies at extremely low cost while still keeping many useful components.

The main advantage of this circuit is that it reuses the original ATX transformer, eliminating the need for complex and error-prone winding work. The inverter operates at a high frequency of around 50kHz, providing stable waveform control and efficient performance.

Most components in this project are recycled from old computer power supplies, including Mosfets, diodes, capacitors, and inductors. This makes the project very cost-effective and ideal for DIY electronics learning and experimentation.

After designing the PCB, I uploaded the Gerber files to the official website of JLCPCB, and within about one week I received high-quality PCBs with clean traces and excellent manufacturing quality.

⚡ MAIN SPECIFICATIONS
Power output: ~300W
Operating frequency: ~50kHz
Transformer: ATX transformer (no rewinding)
Mosfets: IRF3205 / IRFZ44
Driver: SG3525 / TL494 (depending on design)
🔧 RECYCLED COMPONENTS
ATX power supply transformer
Power Mosfets
FR307 rectifier diodes
Input filter inductors from old PSU

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Upload Gerber link: https://jlcpcb.com/?from=youkito
Download File link: https://drive.google.com/file/d/1VrcJ63XMDKmeHwWXvOo2ykoF7W7vD9O1/view
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Видео From Scrap to Power: 300W Inverter Using ATX Transformer ( No Rewind ) | JLCPCB канала Long Technical