Plasma discharge has important potential in research and applied technologies, including possible use in medicine and agriculture. However, generating and controlling plasma at atmospheric pressure requires a reliable power supply, especially because plasma behaves as a non-linear load whose impedance can change significantly depending on the discharge state and intensity.

The goal of the project was to develop a broadband, high-voltage and high-power power supply suitable for unbalanced plasma discharge at atmospheric pressure. The implemented solution consists of a transistor amplifier and a transformer system with a ferrite core. Its design was supported by a combination of computer simulations and experimental testing, while the output step-up broadband transformer represented a new solution within the system.

The developed power supply covers the frequency range from 10 to 700 kHz, with a nominal power of 100 W and an output voltage range from 0 to 5 kV. By providing a controlled source for plasma discharge, the system supports further research and potential implementation of plasma-based treatments of living organisms in medicine and agriculture.