نتایج جستجو برای: reverse converter

تعداد نتایج: 132823  

Journal: :IEICE Transactions 2011
Keivan Navi Mohammad Esmaeildoust Amir Sabbagh Molahosseini

This paper presents a general architecture for designing efficient reverse converters based on the moduli set {2α, 22β+1-1, 2β-1}, where β ≺ α 2β, by using a parallel implementation of mixed-radix conversion (MRC) algorithm. The moduli set {2α, 22β+1-1, 2β-1} is free from modulo (2k+1)-type which can result in an efficient arithmetic unit for residue number system (RNS). The values of α and β c...

2013
Shubham Kaushik Ashish Srivastava

The RNS has been considered as an interesting area for researchers in recent year. This paper presents memoryless and area efficient RNS converters for moduli set with dynamic ranges up to 6n-bit. Residue number system (RNS) has mainly targeted parallelism and larger dynamic ranges. In this paper, we start from the moduli sets {2, 2 1, 2 + 1, 2 – 2 + 1, 2 + 2 + 1} with dynamic range of 5n-bit a...

Journal: :CoRR 2006
Arash Hariri Keivan Navi Reza Rastegar

Residue Number System (RNS) is a valuable tool for fast and parallel arithmetic. It has a wide application in digital signal processing, fault tolerant systems, etc. In this work, we introduce the 3-moduli set {2, 2n-1, 2n+1} and propose its residue to binary converter using the Chinese Remainder Theorem. We present its simple hardware implementation that mainly includes one Carry Save Adder (C...

Mohammad Reza Salehnamadi Navid Habibi

Residue Number System (RNS) is a carry-free and non-weighed integer system. In this paper an improved three-moduli set  in reverse converter based on CRT algorithm is proposed. CRT algorithm can perform a better delay and hardware implementation in modules via other algorithms. This moduli is based on p that covers a wide range on modules and supports the whole range of its modules in dynamic r...

2014
Jinsoo Kim Oh Yang

Abstract. This paper proposes the three-level boost converter for highefficiency photovoltaic power conditioning system. Different from the existing two-level high boost converter, it has the advantage of high voltage gain and thus it is easy to make a high voltage from a low voltage. The proposed threelevel boost converter reduces the reverse recovery losses of the diodes and increases the ove...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1377

‏‎applications such as high definition viedeo reproduction, portable computers, wireless, and multimedia demand, and ever-increasing need for ligh-frequency high-resolution and low-power analog-to-digital converters. flash, two-step flash, and pipeline convertors are fast but consume large amount of power and require large area. to overcome these problems, successive approximation converter blo...

2000
MUMMADI VEERACHARY KATSUMI UEZATO

C, Ca Filter, array capacitance d1, d2 Duty ratios of switch S1,S2 DP1, DP2 Diodes of individual boost cells IA SCA current IAb SCA current with boost converter IAd SCA current with IDB converter Im SCA current at maximum power operation Iab Average load current with boost converter Iaid Average load current with IDB converter Iph Insolation dependent photo current I0 Cell reverse saturation cu...

2013
Arul Prakasam

A zero voltage switching (ZVS) dc–dc converter with high voltage gain is proposed. It consists of a ZVS boost switch cell converter stage and a ZVS half-bridge converter stage with resonant converter and all these stages are merged into a single stage. The ZVS boost converter stage provides a continuous input current and ZVS operation of the power switches. The ZVS halfbridge converter stage pr...

2015
Preeta John

Using PSPICE a resonant dc-dc converters operating at constant frequency was simulated. The paper concentrates on the working of a half bridge topology employing ZVS techniques. The operation of converter with LC filter in the output is discussed. The design and fabrication was done on a 5V, 50W converter using MOSFET to validate the performance of the converter. The converter has illustrated l...

2016
Cheng-Tao Tsai Wang-Min Chen Tapas Mallick

In power conversion of photovoltaic (PV) energy, a hard-switching buck converter always generates some disadvantages. For example, serious electromagnetic interference (EMI), high switching losses, and stresses on an active switch (metal-oxide-semiconductor-field-effect-transistor, MOSFET), and high reverse-recovery losses of a freewheeling diode result in low conversion efficiency. To release ...

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