The series-resonant converter is one of the major classes of electronic power converters that are extensively applied in dc-dc conversion. This technology transfers bulk energy efficiently through a series-resonant circuit in the direct path of the energy transfer. This resonant converter forms a high-frequency ac link between the voltage sources connected to the input and output terminals. The...

This paper presents the operation, analysis, design, simulation, and experimental results for a proposed Dual-Transformer DC-DC Resonant Converter (DTRC). A three-arm bridge is employed on input side an H-type output of DTRC, two bridges are connected with high-frequency (HF) transformers. By optimizing ratio k HF transformers, DTRC has lower boundary power losing zero-voltage switching (ZVS). ...

A non-isolated DC/DC converter with high transfer gain is proposed in this paper. The presented converter consists of the switched inductor and three-level converters. The DC/DC power converter is three-level boost converter to convert the output voltage of the DC source into two voltage sources. The main advantages of DC/DC converter are using low voltage semiconductors and high gain voltage. ...

The new type of L-LLC resonant bidirectional DC-DC converter (L-LLC-BDC) has merits high efficiency, high-power density and wide gain power ranges, it is suitable for energy interface between storage systems DC micro grid. However, the resonances are sensitive to parasitic parameters, which will deteriorate efficiency. This paper investigates intrinsic mechanism parameters on L-LLC-BDC operatin...

Technological advancements in solar power systems necessitate highly reliable inverters with a high efficiency and small size. An LLC resonant converter-based pseudo Direct Current (DC) link offer these qualities to some extent. The circuits of conventional DC lack the ability attain zero gain cannot handle variable frequency control which turn requires very large filters produce pure sinusoida...

This paper proposes a multi-stage power generation system suitable for renewable energy sources, which is composed of a DC-DC power converter and a three-phase inverter. The DC-DC power converter is a boost converter to convert the output voltage of the DC source into two voltage sources. The DC-DC converter has two switches operates like a continuous conduction mode. The input current of DC-DC...

A compact and highly efficient unidirectional DC–DC converter is required as a battery charger for electrical vehicles, which will rapidly become widespread in the near future. The single active bridge (SAB) proposed simple high-frequency isolated converter, comprised of an H-bridge primary side, high frequency transformer, rectifying secondary diode output circuit. This paper presents novel, u...

Considering the effects of isolation and high efficiency, a series-resonant DC-DC converter (L-L-C type, with two inductors and a capacitor) has been introduced into a residential photovoltaic (PV) generation and storage system in this work, and a voltage gain curve upwarp drifting problem was found. In this paper, the reason of upwarp drifting in the voltage gain curve is given, and a new chan...