نتایج جستجو برای: z h buck boost converter

تعداد نتایج: 699463  

2012
John Marshal Deepa K

Environmental friendly solutions are becoming more prominent than ever as a result of concern regarding the state of our deteriorating planet. This paper presents a new DSP controller based Switching configuration of hybrid Distributed Energy Generators (DER) with a single input DC-DC Buck-Boost converter, based on their availability . This configuration allows the two sources to supply the loa...

2017
A. Srilatha

In this paper, a DC–DC converter topology with a zero voltage and zero current switching control technique [8] has been proposed for solar PV applications. The proposed converter combine the feature of buck–boost operation capability, at the same time, it can carry out zero voltage and zero current switching on the primary side of the converter transformer. The proposed work has been carried ou...

2017
Kaustubh Kulkarni

A bidirectional converter (BDC) is required in areas where generated energy is stored. Some of the application areas are uninterruptible power system, transportation,, flywheel energy storage systems, etc. Bidirectional flow of power using buck mode and boost mode along with efficiency and high power density is important need of such systems. This report proposes a new topology of BDC with the ...

2017
Tsung-Hsi Wu Chih-Hao Hou Hai-Wen Li

The operation of a battery power bank with series-connected buck–boost-type battery power modules (BPMs) was investigated in this study. Each BPM consisted of a battery pack with an associated buck–boost converter for individually controlling battery currents. With a proposed discharging scenario, load voltage regulation with charge equalization among batteries was performed by controlling the ...

In this paper, a non-isolated multi-port zero-voltage-switching bidirectional dc-dc converter is proposed. Free ripple condition of input currents is obtained by using coupled inductors in any stages. Proposed converter is analyzed as a five port converter. It is possible to increase number of input sources up to as a kind of port converter. The proposed converter can be used in both boost and ...

In this paper, a new high efficiency, high step-up, non-isolated, interleaved DC-DC converter for renewable energy applications is presented. In the suggested topology, two modified step-up KY converters are interleaved to obtain a high conversion ratio without the use of coupled inductors. In comparison with the conventional interleaved DC-DC converters such as boost, buck-boost, SEPIC, ZETA a...

2008
Massimiliano Belloni Edoardo Bonizzoni Franco Maloberti

This chapter deals with the design methodologies to obtain DC-DC converters with multiple outputs and only one inductor. The four possible schemes, buck, boost, and inverting or noninverting buck-boost, are considered. The key specific problems related to the issue are the inductor current switching scheme, the multiple-loops control, the suitable driving of power switches and, accordingly, the...

Journal: :Automatica 1997
Hebertt Sira-Ramírez R. A. Perez-Moreno Romeo Ortega M. Garcia-Esteban

Passivity{based feedback controllers are derived for the indirect stabilization of the average output voltage in Pulse{Width{Modulation (PWM) controlled dc{to{dc power converters of the \boost", \buck{boost" and \buck" types. The controller design is carried out on the basis of well known average PWM models of such circuits. These models are shown to be Euler{Lagrange systems corresponding to a...

2004
R. W. Erickson A. F. Hernandez A. F. Witulski

A new resonant switch is introduced which employs nonlinear tank elements. Zero current switching is obtained. yet the peak transistor voltage and current stresses can approach those of an equivalent ideal PWM converter. Reduced switching loss without a substantial increase in conductbn loss is therefore possible. An approximate analysis is outlined, and transistorpeak voltage and current stres...

2004
K. T. Chau Tuen Mun

Analytical spectral modeling of switched-mode PWM converters, operating in the discontinuous conduction mode, is presented. The modeling approach is to derive analytical expressions of the converter output response using the extended Volterra functional series. Nonlinear frequency responses, including additional DC offset as well as significant subharmonic and higher harmonic components, due to...

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