This paper proposes a new soft-switched continuous conduction-mode (CCM) boost converter. its suitable for high-power applications such as hybrid electric vehicles, and fuel cell power conversion systems. The proposed converter achieves zero-voltage-switched (ZVS) turn-on of active switches in CCM and zero-current-switched turn-off of diodes leading to negligible reverserecovery loss. The compo...

To improve the energy quality, most of the renewable energy systems include an energy storage element charged by the bidirectional DC-DC converter. This paper proposes the bidirectional DC-DC converter which employs the two bridge configuration resonant class-E converters on the both sides of the isolating transformer. The low side converter is controlled as step up and the high side converter ...

This paper presents an alternate quasi-resonant dc link (QRDCL) circuit for soft switched inverters which does not require paralleling of a charged capacitor with another charged capacitor or a voltage source. The circuit momentarily pulls down the DC link voltage to zero as commandled by the control circuit to facilitate zero voltage switching (ZVS) of inverter devices. Operation of this circu...

This paper proposes a single-stage Sepic-type high brightness LED driver for universal line input to perform power factor correcting and LED dimming. In the driver, a coupled inductor is introduced to replace with two separate inductors to lower volume and cost. A soft-switching cell is embedded into the driver to obtain zero-voltage switching ZVS feature so as to furthermore improve driver eff...

In this paper, a multiphase boost converter is proposed to achieve high voltage gain and high power gain. The proposed converter operates in continuous conduction mode (CCM) with soft switching of main and auxiliary devices. The transformer in a conventional converter is replaced by an auxiliary circuit which provides the desired voltage and power levels. The zero voltage switching (ZVS) and ze...