A Compact High Gain Pulse Power Generator Employed with Magnetic Pulse Compression and Push-Pull Charger for Applications in Dielectric Barrier Discharge

The paper demonstrates an innovative high voltage pulse power generator (PPG) for dielectric barrier discharge (DBD) applications. On the charging front, a push-pull circuit, including three-winding transformer and quasi-resonant between transformer leakage inductance and the capacitor on the high-voltage portion is utilized to achieve a significant gain improvement. The device is capable to generate alternatively unipolar/bipolar high voltage exponential impulses from an almost low DC power supply. A magnetic pulse compression (MPC) is used instead of semi-conductor type switches in secondary end. So, there is no semi-conductor devices in high-voltage side. Moreover, MPC doesn't require rigorous consideration of series and parallel connection of semi-conductor-based switches. And the cost, drive circuit and switching complexities are reduced, substantially. The system efficiency is improved due to the operating in discontinuous conduction mode, while lowering the conduction losses by employing silicon carbide MOSFET. As a result, in contrast to existing schemes, the work concentrates on reducing the number of circuit components and control complexity in conjunction to achieving higher efficiency and voltage gain. The simulation outcomes show how this architecture performs superior to the previously studied topologies. A 1000 V experimental prototype is also built to confirm the real-time validity of the PPG improved performance.