A Novel Single-phase Common-grounded Rectifier Without Electrolytic Capacitor

This paper presents a novel non-isolated single-phase power factor correction (PFC) rectifier with active decoupling capability. Firstly, the power decoupling principle is derived and the operating principle of the proposed power decoupling circuit is analyzed. A small DC film capacitor is employed to replace the conventional bulky electrolytic capacitor, while the proposed common-ground structure eliminates leakage current. Furthermore, the implementation of deadbeat control streamlines the control procedure and guarantees the optimal circuit performance. Finally, simulation results are provided to validate the feasibility of the proposed rectifier.