A simple dc-dc boost converter are unable to provide high step-up voltage gains due to the effect of power switches, rectifier diodes, and the equivalent series resistance of inductor and capacitors. In this paper proposes new dc-dc converter to achieve high voltage gain without an extremely high duty ratio. In the proposed converters, two inductors with the same level of inductance are charged...

This paper proposes a high voltage ratio and low ripple interleaved boost DC-DC converter, which can be used to reduce the output voltage ripple. This converter transfers the low DC voltage of fuel cell to high DC voltage in DC link. The structure of the converter is parallel with two voltage-doubler boost converters by interleaving their output voltages to reduce the voltage ripple ratio. Besi...

This project, along with the voltage multiplier chain with dual coil output to the boost converter provides a novel parallel input. On the one hand, and to take part in the input current and to reduce input curre nt ripple in the two coils in parallel with the primary windings connected. On the other hand, it is proposed to change, and a series of interleaved output capacitors profit profitable...

| This paper attempts to study the bifurcation phenomena of a system of parallel-connected dc/dc boost converters. In particular, it is shown that simple averaged models can be used to predict the occurrence of Hopf bifurcation in such systems. The results provide important information for the design of stable current sharing in a master-slave con guration.

This paper presents a theoretical derivation and computer simulation of an optimal speed controller for a brushless dc motor using feedback from a linear model running in parallel with the inverter-fed model. The intent of the feedback from the linear model is to eliminate torque ripples from the inverter drive. A nonlinear model of such a motor, transformed into a linear model by a local diphe...

A novel bidirectional DC-DC converter is presented in this paper. The circuit configuration of the proposed converter is very simple. The proposed converter employs a coupled inductor with same winding turns in the primary and secondary sides. In step-up mode, the primary and secondary windings of the coupled inductor are operated in parallel-charge and series-discharge to achieve high step-up ...

A 40-dB dynamic range, dc–4-GHz parallel-summation logarithmic amplifier is presented in this paper. The amplifier realizes a piecewise approximation to an exact logarithmic response. A design procedure that yields breakpoints on the exact response is described, along with delay-matching networks for parallel-summation logarithmic amplifiers. The amplifier was constructed in a 35-GHz silicon bi...

| This paper attempts to study the bifurcation phenomena of a system of parallel-connected dc/dc boost converters. In particular, it is shown that simple averaged models can be used to predict the occurrence of Hopf bifurcation in such systems. The results provide important information for the design of stable current sharing in a master-slave con guration.