In inverter design for electric vehicle applications there are several major requirements that should be met. The inverter should be able to operate bidirectionally with reasonably high efficiency under a high ambient temperature. Therefore it is critical to select the suitable main switches for the inverter. In this paper seven types of devices (including 3 dual IGBTs, 1 intelligent dual IGBT,...

In this paper, a parallel modular multi-inverter (PMMI) topology is proposed to supply high power for wireless charging electric vehicles (EVs). A major challenge in the implementation of PMMI zero-voltage switching (ZVS) all inverters avoid high-frequency losses. Therefore, centralized-ZVS control and master–slave frequency following (MSFF) strategy are presented realize ZVS PMMIs by single co...

This paper presents the design and analysis and of the proposed zero voltage zero current switching (ZVZCS) full bridge dc-dc converter with transformer isolation and current doubler rectifier for high power and high performance by introducing ZVS for lagging leg and ZCS for leading leg operation It has a simple and robust structure with asymmetrical shifted pulse width modulation technique. Th...

The purpose of this paper is to introduce a new family of zero-voltage switching (ZVS) pulse-width modulation (PWM) active-clamping dc-to-dc boost converters. This technique presents ZVS commutation without additional voltage stress and a significant increase in the circulating reactive energy throughout the converters. So, the efficiency and the power density become advantages when compared to...

This paper introduces a new soft switching boost converter with passive snubber. In the proposed converter, the main switch turns on under zero current switching (ZCS) and turns off under zero voltage switching (ZVS) without any additional voltage or current stresses. The main diode turns on under ZVS and turns off under ZCS. The proposed converter has features as low cost, simple control, low ...

This study presents a two-switch continuous conduction mode pulse width modulation flyback converter that employs an LC snubber circuit. The snubber circuit is used to achieve zero voltage switching (ZVS) operation for the main switches during the turn-off transition and soft switching for power diodes. With the proposed LC snubber, the magnetic energy in the transformer leakage inductance can ...

─ This paper presents a voltage doubler in to a half bridge converter is derived for electric vehicle battery chargers. The proposed converter provides wide ZVS range, reduced circulating current and also voltage stress. Circulating current during the freewheeling phases of phase shift full bridge circuit are reset by the sum of LLC circuit output voltage and resonant capacitor voltage by achie...