Abstract
The dielectric barrier discharge (DBD) based excimer radiation source has demonstrated encouraging results for pathogen deactivation, air deodorization, and water purification. The electrical power supply is one of the critical components which influences the energy efficiency of the DBD-based excimer radiation source. The excimer radiation source operating in pulsed mode has better energy efficiency and discharge uniformity. The design of a high-voltage bipolar pulsed power supply for a mercury-free far UV-C (222 nm) excimer radiation source is presented in this paper. A single-phase (1-Ф) interleaved power factor correction (IPFC) boost converter and a bipolar high-voltage converter-based pulsed power supply are designed for a DBD-based excimer radiation source. The power supply has a variable pulse repetition rate of up to 50 kHz and a pulse width of up to 5 μs. To verify the design, the simulation of a two-stage interleaved power factor corrected boost converter and a bipolar high-voltage unit on resistive dummy load is carried out in a MATLAB-Simulink-based environment and presented in this work.
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