Keywords: Improvement of efficiency and power factor Switching frequency determination Bidirectional AC–DC converter a b s t r a c t This paper investigates the possibility to optimize both the efficiency and the power factor of energy conversion systems which include power electronic converters. The values of these important power quantities depend on different parameters, such as the switchin...

There has been an ever-increasing demand to increase the switching frequency, power density, efficiency and dynamic performance of switch-mode power converter, the development of soft-switching technology has taken an accelerated pace. This paper provides a review on the development of soft-switching power converters for electric vehicle (EV) propulsion and recent research trends will also be d...

This paper presents an interleaved boost converter with coupled inductors for photovoltaic (PV) energy conversion. The proposed soft-switching boost converter uses an interleaved method to increase its power density and coupled-inductor technology to extend its step-up voltage ratio. To reduce switching losses of active switches, the proposed interleaved boost converter incorporates a synchrono...

The energy recovery principle used in high-efficiency power supplies can be applied to digital CMOS logic to reduce dynamic power dissipation. We describe experiments with a custom linedriver chip and resonant power supply that can switch eight 100pF loads at 1MHz over 6 times more efficiently than conventional CMOS. The paper describes the adiabatic charging principle underlying this class of ...

Switching devices are key components in any power electronic circuit or system as they control and limit the flow of power from the source to the load. Their power level requirements (current & voltage) and switching frequency are continually increasing in the power electronic industry, and this demands larger and faster switching devices. This paper will focus on the development of high power ...

  Translation of the Holy Quran can be difficult for translators in terms of accuracy and translatability. Sometimes translators fail to render the Quranic thoughts because of the lack of language features in target languages. This results in an unfavorable interpretation. One of the challenging aspects of translating Quran is reference switching as rhetorical devices, which are widespread i...

This paper presents the Zero-Voltage Switching (ZVS) performance of Dual Active Bridge (DAB) DC-DC converter for high power density aerospace applications. Switching transitions of the transistor occurring in favorable conditions such as device zero-voltage or zero-current is called as soft-switching. The benefits of soft-switching are reduced switching losses, switch stress, low electromagneti...