Dual-active-bridge (DAB) converter is an attractive topology to be used as a dc transformer (DCT) in the power distribution system. Because voltage gain for relatively fixed, single-phase-shift (SPS) control popularly adopted DAB achieve simple control. Aiming at increasing light load efficiency of high-frequency under SPS control, this letter proposes concept full range zero-voltage-switching ...

High switching frequency operation in power converters leads to a significant reduction size at the cost of increased losses. Thus, soft techniques become necessary reduce WBG devices have benefit low turn-off losses, but turn-on losses are still significant. Triangular Current Mode (TCM) control can achieve zero voltage (ZVS) without adding extra resonant components or active converter. For th...

Due to the quick development of wide bandgap power devices, density converters is expected be much higher. In order increase and efficiency dual-active-bridge (DAB) converter, especially under light load, a quasi-optimal current root-mean-square (rms) control strategy achieve All-zero-voltage switching (ZVS) proposed by taking inductor rms optimization algorithm into account in this article. Fi...

A linearized hybrid modulation scheme for the dual active bridge (DAB) converter is proposed in this article. For purpose of minimizing conduction losses dissipated on transformer and power transistors, an optimal relationship function between two control variables employed extended phase shift (EPS) can be derived. However, obtained a complex expression, which not good simple on-line control. ...

A DSP-based self-adaptive proportional-integral (PI) controller to control a DC-DC converter is proposed in this paper. Full-bridge topology is adopted here to obtain higher power output capability and higher conversion efficiency. The converter adopts zero-voltage-switching (ZVS) technique to reduce conduction losses. A parallel secondary active clamp circuit is added to deal with voltage over...

This paper presents a combined phase-shift and frequency modulation scheme of a dual–active-bridge (DAB) ac– dc converter with power factor correction (PFC) to achieve zero voltage switching (ZVS) over the full range of the ac mains voltage. The DAB consists of a half bridge with bidirectional switches on the ac side and a full bridge on the dc side of the isolation transformer to accomplish si...

In this paper a novel Interleaved Boost Converter (IBC) with soft-switching techniques is proposed. Through the zero-voltage switching (ZVS) and zero-current switching (ZCS) reduces the current stress of the main circuit components, in addition to this it can also reduces the ripple of the input current and output voltage. In this approach, it can be faster switching, reduce the size and cost w...

This paper proposes two new soft-switching transformerless converters with high voltage conversion ratio. These proposed converters achieve soft-switching each with a single auxiliary resonant cell. The merit of these converters is reduced switching losses with lesser number of devices. The main switching devices are turned off with zero current switching (ZCS). Apart from the soft-switching fe...

This paper presents the performance analysis of proposed circuit Single-Phase Reduced Order AC-AC Resonant Frequency Converter. converter is minimized number switches for multi-operation and resonant work on principle ZCS (Zero Current Switching) ZVS Voltage combining both topology, which provide better output with reduce THD switching losses. A mathematical modeling done proper value used para...

This paper proposes a novel interleaved ultra-large gain zero-voltage switching (ZVS) DC–DC converter for renewable energy systems. By using coupled inductor (CI) and built-in transformer (BIT), high-voltage is achieved. The secondary windings of the CIs are connected in series with primary winding BIT inserted voltage multiplier cell (VMC). In such case, proportional to multiplication turn's r...