نتایج جستجو برای: power converter

تعداد نتایج: 500487  

2012
Arnab Ghosh Pradip Kumar Saha Goutam Kumar Panda

In these modern research areas the Nonlinear Dynamics is a very popular topic, the researchers study the nonlinear behaviour of every system which can be an industrial machine/instrument or a theoretical aspect. Prior researchers already studied the nonlinear dynamics of Current Controlled DC-DC Boost Converter. But the Power Factor Corrected Boost Converter is a circuit which is used in very p...

2016
Yong-Seng Wong Jiann-Fuh Chen Kuo-Bin Liu

A high step-up DC-to-DC converter that integrates an isolated transformer and a switched-clamp capacitor is presented in this study. The voltage stress of the main power switch should be clamped to 1/4 V by using the turn ratio and switched-clamp capacitor of an isolated transformer to achieve a high voltage gain. In addition, a passive clamp circuit is employed reduce voltage stress on the mai...

2014
Sheng-Yu Tseng Chien-Chih Chen Ching-Ting Huang

This paper presents an interleaved boost converter with coupled inductors for photovoltaic (PV) energy conversion. The proposed soft-switching boost converter uses an interleaved method to increase its power density and coupled-inductor technology to extend its step-up voltage ratio. To reduce switching losses of active switches, the proposed interleaved boost converter incorporates a synchrono...

2008
Andrew Ferencz Arthur C. Smith DEe Martin F. Schlecht

This thesis describes the design and construction of a 250 W, 35-60 Vin, 5 Vout dc-dc power converter with a switching frequency of 500 kHz. The converter uses square wave switching and is composed of two power processing stages in series. The first stage, a boost converter, regulates the output voltage of the converter. The second stage, a push-pull converter operating at 100% duty-cycle, prov...

2013
K. Srinivas

This paper presents a high step-down tranformerless single-stage single-switch ac/dc converter suitable for universal line applications (90–270 Vrms ). The topology integrates a buck-type power-factor correction (PFC) cell with a buck–boost dc/dc cell and part of the input power is coupled to the output directly after the first power processing. With this direct power transfer feature and shari...

2013
Valery Meleshin Rais Miftakhutdinov

The need for renewable and more efficient electrical energy generation, distribution and conversion drives exploration of new power conversion topologies and development of advanced power component technologies. Recently reintroduced multilevel boost converter topologies, by allowing use of new, efficient but relatively low voltage power devices at higher voltage and power levels, are becoming ...

2008
Uwe DROFENIK Johann W. KOLAR

With the desire to integrate power converters into larger systems, high power density became a very important issue. In this paper we discuss the thermal limits of the power density of converter systems. It is shown that these limits are partly given by today’s technology and partly given by physics. Employing the given equations, one can quickly estimate the maximum possible power density of a...

1999
Gu-Yeon Wei Mark Horowitz

A voltage scaling technique for energy-efficient operation requires an adaptive power-supply regulator to significantly reduce dynamic power consumption in synchronous digital circuits. A digitally controlled power converter that dynamically tracks circuit performance with a ring oscillator and regulates the supply voltage to the minimum required to operate at a desired frequency is presented. ...

2015
J. KOMATHI J. Komathi

The fly back converter has been widely used for multi outputs due to the simple structure and low cost in low-power applications. This paper presents a new multi output converter. It consists of a half-bridge inverter with boost converter in primary side and a fly back rectifier that is integrated with an auxiliary buck converter in secondary side. The boost converter is used to generate high v...

Journal: :IEICE Transactions 2006
Yuang-Shung Lee Yin-Yuan Chiu Ming-Wang Cheng

The proposed zero-current switching switched-capacitor (ZCS SC) DC-DC converter is an innovative bi-directional power flow control conversion scheme. A zero-current switching switched-capacitor stepup/step-down bi-directional converter is presented that can improve the current stress problem during bi-directional power flow control processing. It can provide a high voltage conversion ratio of n...

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