Recent environmental issues have accelerated the use of more efficient and energy saving technologies in renewable energy systems. High power high efficiency boost DC/DC converters for the use in photovoltaic, fuel cell systems are discussed in this paper from the viewpoint of power losses and efficiency. State of the art converters with switching frequency within the range of 25 kHz with IGBTs...

A new family of zero-current-transition (ZCT) pulsewidth-modulated (PWM) converters is proposed. The new family of converters implements zero-current turn-off for power transistor(s) without increasing voltagdcurrent stresses and operates at a fixed frequency. The proposed converters are deemed most suitable for high-power applications where the minority-carrier semiconductor devices (such as I...

The implementation of residue number system reverse converters based on well-known regular and modular parallel prefix adders is analyzed. The VLSI implementation results show a significant delay reduction and area × time2 improvements, all this at the cost of higher power consumption, which is the main reason preventing the use of parallel-prefix adders to achieve high-speed reverse converters...

Boost power converters have been widely used for Power Factor Correction (PFC) in AC-DC conversions [1] and for power management in battery powered DC-DC conversions [2]. Moving beyond low-power applications, such as cellular phones, smart phones and other portable electronic products, boost converters are being used more and more in medium-power applications. For example, in computing and cons...

Abstract— This paper extends the traditional family of PWM DC-DC converters. By employing voltage capacitor-multipliers, converters provide high voltage gains. The capacitor multiplier of each converter is driven by the same transistor of the well-known basic topology. The main features of these new converters are: (i) high-voltage gain without extreme duty cycles and transformerless. Therefor...

this paper proposes a new configuration for solar energy conversion systems. one challenging issue of the photovoltaic (pv) systems is partial shading, and in this paper module integrated converters (mic) are used to overcome this problem in pv arrays. a few boost converters are employed as mics to mitigate the shading effect. furthermore, to reduce the cost and to increase the system performan...

There has been a tremendous research effort in recent years to move DC-DC converters on chip for enhanced performance. However, a major limiting factor to implement on-chip inductive DC-DC converters is the large area overhead induced by spiral inductors. Towards this, we propose to use through-silicon-vias (TSVs), a critical enabling technique in three-dimensional (3D) integrated systems, to i...

For medium-voltage power electronic applications, multilevel converters have become a popular option. While conventional twolevel converters utilize a direct series connection of switches to meet medium-voltage requirements, multilevel converters allow a higher voltage handling capability with reduced harmonic distortion and lower switching power losses. One of the most important requirements i...