نتایج جستجو برای: boost dc

تعداد نتایج: 78669  

2014
P. MUTHUKRISHNAN

A Conventional Boost Converter is not capable for obtain a high voltage gain even extreme duty cycle maintain the triggering circuit diagram. In order to increase the voltage gain for the new Boost converter from the solar power application. In this paper boost converter specialty is achieved 10 times that of input voltage and more than 10 times of input voltages is possible from output side by...

2013
A. Gopi R. Saravanakumar

This paper presents high boost isolated dc-dc converter with closed loop control to provide high voltage regulation control suitable for renewable energy source. The circuit consists of active clamp circuit and boost converter with isolated transformer. The circuit employs capacitors are charged in parallel and discharged in series by isolated transformer inductors. The active clamp circuit is ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Bingbing Dai Lili Yang Haiguang Yang Biliang Hu David Baltimore Pin Wang

Lentivectors (LVs) have attracted considerable interest for their potential as a vaccine delivery vehicle. In this study, we evaluate in mice a dendritic cell (DC)-directed LV system encoding the Gag protein of human immunodeficiency virus (HIV) (LV-Gag) as a potential vaccine for inducing an anti-HIV immune response. The DC-directed specificity is achieved through pseudotyping the vector with ...

Journal: :Nigerian Journal of Technology 2014

2012
Kei Eguchi Sawai Pongswatd Amphawan Julsereewong Ichirou Oota Shinya Terada Hirofumi Sasaki

For mobile back-lighting applications, a dual-input white LED (WLED) driver using a bi-direction buck-boost converter is proposed in this paper. The proposed driver has two input terminals: battery input Vin1 and solar-cell input Vin2. Unlike conventional drivers using boost converters, step-up SC DC-DC converters, and so on, the proposed converter drives the anode and the cathode of LEDs by us...

2017
Sivaprasad Athikkal Kumaravel Sundaramoorthy Ashok Sankar

A novel modified bridge-type dual input DC-DC converter, which is proficient for integrating distinct V-I characteristic sources such as solar-PV, wind, etc., and storages including battery, ultracapacitor, fuel cell, etc., is proposed in this paper. Three modes of operations such as boost, buck, and buck-boost are possible using the same structure of the converter, and the converter can operat...

2014
Kaspars KROICS Ugis SIRMELIS Viesturs BRAZIS

This paper presents an analysis of coupled inductor for interleaved boost converter and the effect of coupled inductor on current ripple reduction and on load transient response time. From the analysis a ETD core based coupled inductor structure is proposed to maximize the performance of the DC-DC converter. The inductor can be designed in convenient way by using commercially manufactured coil ...

2017
R. Palanisamy

Received Feb 14, 2017 Revised Apr 14, 2017 Accepted Apr 28, 2017 This paper proposes maximum boost control for 7-level z-source cascaded h-bridge inverter and their affiliation between voltage boost gain and modulation index. Z-source network avoids the usage of external dc-dc boost converter and improves output voltage with minimised harmonic content. Z-source network utilises distinctive LC i...

2013
Parviz Amiri Mohammad Sadegh Sharifi

Conventional two-state dc to dc voltage converters have in their small signal transfer function a right half planzero in pole-zero plane whichthis zero result in speed reduction and lowfrequency operation, especially, because position of the zero is not fixed andmovesby the load variation. To remedy this problem the tri-state boost converters have been introduced. These converters haven’t the m...

2014
Pandav Kiran Maroti B. Sri Revathi

This paper presents a new single stage DC-DC multilevel boost converter topology with very high voltage gain ratio. It is a Pulse width modulation (PWM) based switched inductor multilevel boost converter (SIMLC) consisting of two switched inductors, 2N+2 Diodes, 2N-1 Capacitors for N level boost converter. High switching frequency has been used to decrease component size. The proposed converter...

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