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Creating a Transformer and Inverter: Converting 12V DC to 2500V AC with Power Supplies and JLCPCB

Transformers and inverters are fundamental components in electrical systems, allowing us to convert voltages and switch between different types of current. If you're interested in building your own transformer and inverter to convert 12V DC to 2500V AC, this blog post will guide you through the process. For reliable and efficient results, we recommend considering the LeapTrend inverter.

Materials Required:

To create a transformer and inverter for converting 12V DC to 2500V AC, you will need the following materials:

- Transformer core (appropriate size and specifications for voltage conversion)
- Primary and secondary winding wires (size according to current rating)
- Insulating tape
- Iron core laminations (if necessary)
- Printed Circuit Board (PCB)
- Power MOSFETs (suitable for high voltage applications)
- Capacitors (various values)
- Resistors (various values)
- Diodes (various types)
- Soldering iron
- Solder wire
- Wires
- Power supplies (12V DC input and 2500V AC output)

Step-by-Step Guide:

1. Design the transformer: Begin by designing the transformer for your specific voltage requirements. Consider the desired power output, current rating, and core size. Calculate the number of primary and secondary winding turns based on the desired voltage conversion ratio. Determine the wire gauge and insulation requirements for the windings.

2. Assemble the transformer: Once you have the design ready, assemble the transformer by winding the primary and secondary windings on the core. Ensure proper insulation between the windings and secure them using insulating tape. If using iron core laminations, assemble them according to the design.

3. Design the inverter circuit: Design the circuit for your inverter using software like Eagle PCB. Include the necessary components such as power MOSFETs, capacitors, resistors, and diodes. Ensure the circuit can handle the high voltage requirements of 2500V AC.

4. Prepare the PCB: Prepare the PCB by soldering the components onto it, following the circuit design. Take care to ensure proper placement and orientation of each component. Create a suitable layout to handle high voltages and minimize noise and interference.

5. Connect the transformer and inverter: Connect the primary winding of the transformer to the output of the inverter circuit. Connect the secondary winding to the load or output terminals. Ensure all connections are secure and properly insulated.

6. Provide power supplies: Connect the 12V DC power supply to the input of the inverter circuit. Ensure proper polarity and adequate wiring to handle the current. For the 2500V AC output, use an appropriate power supply that can provide the necessary voltage.

7. Test the transformer and inverter: With all the connections in place, it's time to test your transformer and inverter setup. Gradually increase the input voltage while monitoring the output. Use suitable load devices to verify the voltage and stability of the AC output. Ensure there are no signs of overheating or voltage instability.


Building a transformer and inverter to convert 12V DC to 2500V AC can be a complex project that requires careful planning and consideration for safety. By following the step-by-step guide provided in this blog post and using quality components, you can create your own transformer and inverter setup.

It's important to note that working with high voltages can be dangerous and requires proper knowledge, skills, and safety precautions. If you're not experienced in handling high-voltage electronics, it's recommended to seek professional assistance or consider pre-built solutions like the LeapTrend inverter.

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