In this study, a robust controller for voltage regulation of the POESLL converter worked in continuous conduction mode is presented. POESLL converter is a DC/DC converter with a high voltage gain. DC/DC converters are used in telecommunication systems, power sources and industrial applications. Owing to the switching operation, the structure of the POESLL converter is highly non-linear. In addi...

A novel high step-up DC-DC converter with coupled-inductor and switched-capacitor techniques is proposed in this paper. The capacitors are charged in parallel and are discharged in series by the coupled inductor, stacking on the output capacitor. Thus, the proposed converter can achieve high step-up voltage gain with appropriate duty ratio. Besides, the voltage spike on the main switch can be c...

In this paper, a three-phase AC-DC high step-up converter is developed for application to microscale wind-power generation systems. Such an AC-DC boost converter prossessess the property of the single-switch high step-up DC-DC structure. For power factor correction, the advanced half-stage converter is operated under the discontinuous conduction mode (DCM). Simulatanously, to achieve a high ste...

This paper proposed a hybrid control model-based voltage control of Hybrid Energy System (HES) that includes both solar and wind energy conversion systems. The proposed hybrid voltage control model is the combination process of both the Artificial Bees Colony algorithm (ABC) and Proportional Integral controller (PI). The novelty of the proposed method is intelligent foraging behavior of honey b...

It is often stated in papers that there may be a fundamental difference between current-mode and voltage-mode circuits. In this discussion paper, we show that there is no definition that would clearly divide all circuits into current-mode and voltagemode. Then we provide evidence that a voltage-mode Gm–C filter and its current-mode counterpart have the same performance. The reason why current-m...

The utilization of photovoltaic energy becomes an important source of electrical energy with the advancement in power electronic technology. The dc-dc converters is one of inevitable part of renewable energy system, for connecting the PV panel to the grid or AC load through an inverter. MPPT (Maximum Power Point Tracking) maximizes the power production of the PV panel. The advantages of high st...

Usually basic dc-dc boost converters are unable to provide high step up voltage gain due to the effect of power switches, rectifier diodes and equivalent series resistance of inductors and capacitors and the voltage stresses on the power switches are high. This paper proposes a simple transformerless dc-dc converters to achieve high step up voltage gain without an extremely high duty ratio. The...

We describe an all CMOS variable gain ampliier (VGA) suitable for use in disk drive read channels. The VGA maintains a 3dB bandwidth greater than 85 MHz throughout its gain range. This ensures good phase linearity for data transfer rates of up to 50Mb/s. The VGA provides a 25dB gain variation along an ideal exponential gain to control voltage curve and 30dB of gain control if ideal exponential ...

This paper proposes a novel finite-gain nonlinearity in MDACs of pipelined ADCs or poles and zeros compensation technique that can be applied to low-voltage deviations in SC filters or sigma-delta modulators, unless the high-speed resetand switched-opamp circuits. The proposed produced finite-gain error can be compensated, with, for example, technique utilizes an Auxiliary Differential-Differen...