The conventional high-frequency phase-shifted zerovoltage-switching (ZVS) full-bridge dc/dc converter has a disadvantage, in that a circulating current flows through transformer and switching devices during the freewheeling interval. Due to this circulating current, rms current stress, conduction losses of the transformer and switching devices are increased. To alleviate this problem, this pape...

The tilt after-effect (TAE) and tilt illusion (TI) have revealed a great deal about the nature of orientation coding of 1-dimensional (1D) lines and gratings. Comparatively little research however has addressed the mechanisms responsible for encoding the orientation of 2-dimensional (2D) plaid stimuli. A multi-stage model of edge detection has recently been proposed [Georgeson, M. A. (1998) Ima...

The main objective of this research work is to implement and compare four control methods, i.e., PWM with periodic carrier, Zero voltage switching, Zero Current switching, chaotic PWM with chaotic carrier in terms of their performance in suppressing ripples, reducing peaky electromagnetic inference and increasing converter conversion efficiency in MPPT circuits of the solar PV powered Cuk conve...

For low-cost isolated ac/dc power converters adopting high-voltage dc-link, research efforts focus on single-stage multilevel topologies. This paper proposes the design of boost derived three level isolated single-stage PFC converter. The proposed topology significantly reduces the switching losses and zero current switching with zero voltage switching. This topology achieved through an effecti...

Abstract — A circuit technique that reduces switching losses of the pulse-width-modulated boost converter is described. The losses are reduced by using a new switch cell that consists of an inductor, a diode, a capacitor, a main switch, and an auxiliary switch. This technique reduces the reverse-recovery-related losses of the rectifier with the inductor that controls the di/dt rate of the recti...

There has been an increasing interest in the soft-switching power conversion technologies in order to overcome the limitations of the hard-switching technologies [1]-[7]. Soft-switching (SS) converters had many advantages over hard-switching (HS) converters. For example, SS converters lower switching losses, reduce voltage/current stress, reduce EMI, and allow a greater high switching frequency...