Sepic and Ćuk converters working as power factor preregulators (PFP) in discontinuous conduction mode (DCM) present the following desirable characteristics for a PFP: 1) the converter works as a voltage follower (no current loop is needed); 2) theoretical power factor is unity; and 3) the input current ripple is defined at the design stage. Besides, input-output galvanic isolation is easily obt...

In this paper, A power factor correction (PFC) based single ended primary inductor converter (SEPIC) is used to regulate DC bus voltage of voltage source inverter (VSI) to run PMBLDC motor . Permanent magnet brushless DC motor (PMBLDCM) is used in air-conditioning systems and runs at rated torque and variable speed to achieve energy conservation. The analysis, design and performance of the prop...

The rising prominence of renewable energy sources and the demand for efficient power distribution has led to emergence DC microgrids as a promising solution localized generation distribution. effective operation heavily relies on performance their DC-DC converters, which play crucial role in regulating flow voltage. Selecting suitable converters is thus essential ensure optimal stability photov...

An average model of SEPIC converters with coupled or uncoupled inductors was developed and verified against cycle-by-cycle s i m u l a t i o n s . The model can be used as-is by any modern circuit simulator to run steady state (DC), large signal (transient) and small signal (AC) analyses. The leakage inductances were taken into account and treated separately from the mutual inductance. The prim...