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). ...

The newly developed phase-shift controlled bidirectional DC-DC converter has the conventional features of phase-shifted converters, including zero-voltage switching (ZVS) and constant switching frequency. However, it has been improved by developing a bi-directional power flow capability and applying synchronous rectification, hence the on-state voltmge drop of the active devices are small.

AbspuctThe saturable inductor is employed in the fullbridge (FB) zero-voltage-switched (ZVS) pulsewidth-modulated (PWM) converter to improve its performance. The current and voltage stresses of the switches as well as parasitic oscillations are significantly reduced compared to those of the conventional FBZVS-PWM converter. The qualitative analysis is presented and is verified on a 500 KHz, 5 V...

Detailed analysis and parameter design for a resistorcapacitor-diode (RCD) clamped snubber used in the output rectifier of phase-shift full-bridge zero-voltage-switching (PS-FB-ZVS) converters are presented. Design equations and some properties of the clamped circuit are highlighted.

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. ...

In order to meet the demands of bidirectional transmission electric vehicle charger power, a series-resonant dual-active-bridge (DAB) converter is investigated in this paper. Firstly, active and reactive power zero voltage switching (ZVS) conditions full-bridge arm under extended phase-shift modulation, dual modulation triple are analyzed. Secondly, with minimum as optimization objective, phase...