Two New High Power Factor Single-Phase Diode Rectifiers Using Optimum Ripple-Power Conversion

Two new schemes of low-distorting single-phase diode-bridge rectifiers with capacitive smoothing of the output voltage are proposed, analyzed, and verified. The harmonic distortion reduction proposed is based on optimum conversion of the ripple power to an additional quantity of DC power consumed in the load. To verify the feasibility and usefulness of the proposed improved rectifier circuits, they were tested by computer simulation. In addition, the corresponding laboratory rectifiers of 0.5 kW were built and tested. In proposed schemes, low values of the total harmonic distortion hold in wide range of the load variation