A novel two-switch high-step-up isolated converter with voltage lift is proposed in this paper. The proposed isolated converter utilizes a transformer with low turn ratio to achieve high step-up gain. The secondary winding charges two boosting capacitors in parallel as switches during the switch-on period, and two boosting capacitors are discharged in series during switch-off period. Thus, the ...

In this paper, KY converter and voltage gain enhanced KY converter are included. A KY converter is a voltage step up converter, it can be considered as a buck converter along with synchronous rectification. In general, a KY converter consists of two MOSFET switches. To obtain higher voltage gain we can adopt different methods. Some of these techniques, advantages and disadvantages of each metho...

<span lang="EN-US">This paper proposes a new bidirectional step-up DC-DC converter, namely modified buck-boost converter. The proposed converter was derived from the conventional Output voltage expression of by considering drops across inductors and switching devices. results have shown that with same parameter input LC filter, has lower conduction losses. Moreover, rated filter capacitor...

In this paper, a high voltage gain non-isolated three-port converter with three-winding coupled inductor is proposed for renewable energy system. By implementing cascoded structure where photovoltaic (PV) source stacked on top of battery source, the output can be achieved reasonable duty cycle, resulting in higher efficiency when both sources provide to load. Furthermore, only three power switc...

In this paper, a three-phase AC-DC high step-up converter is developed for application to microscale wind-power generation systems. Such an AC-DC boost converter prossessess the property of the single-switch high step-up DC-DC structure. For power factor correction, the advanced half-stage converter is operated under the discontinuous conduction mode (DCM). Simulatanously, to achieve a high ste...

In this paper, a new type of interleaved high step-up converter including coupled inductor is proposed. The proposed has an configuration on the input side to reduce ripple current and increase power level. Moreover, stacked structure output provides input/output (I/O) voltage gain. addition, can avoid extreme duty cycle, causing larger conduction losses, by combining lossless clamp circuit wit...