Corona treatment system with resonant inverter - selected proprieties

The paper describes a mathematical model and proprieties of series resonant inverters used in application for activators of polyethylene foil (corona treatment). The method of identification of corona treatment parameters and power calculation is described as well. The area of soft switching and the area with corona discharge is shown. In this paper a new control method of corona treatment based on PDM and PFM modulation is presented. The control characteristics were determined. The circuits were tested by means of simulation and experimentally by industrial applications.