نتایج جستجو برای: boost factor

تعداد نتایج: 867087  

2012
G. KISHOR D. SUBBARAYUDU S. SIVANAGARAJU

Abstract: In many power factor correction applications, the power level can reach maximum value and sometimes the input voltage also will be too high. For high power and high voltage applications the inductor volume and weight is the major concern of the conventional boost converter. In this paper the two inductor boost converter is adopted which uses smaller inductors yielding high power densi...

2014
Kashif Habib Aftab Alam Shahbaz Khan

The aim of this paper is to investigate the power factor correction (PFC) of Boost Converter under an average current-mode control. Boost converter topology is used to accomplish this active power-factor correction in many discontinues/ continuous modes. The boost converter is used usually it is easy to implement and works well. In this paper comparative evaluation of different techniques for h...

Journal: :Iet Power Electronics 2023

In low-voltage distribution systems, the increased penetration of power electronic devices leads to decentralization harmonic sources, which puts sensitive loads or communication systems in risk status. The conventional methods point-to-point control are not applicable. order solve this problem without increasing additional investments, paper focuses on mitigating interference through factor co...

Journal: :IEEJ Transactions on Industry Applications 1995

Journal: :International Journal of Electrical and Computer Engineering (IJECE) 2012

Journal: :TELKOMNIKA (Telecommunication Computing Electronics and Control) 2011

2014
P. V. R. K. B. A. N. RAJU I. SUDHAKAR BABU G. V. SIVA KRISHNA RAO

With the vast development in the usage of Power electronic devices like Rectifiers (nonlinear loads) the current drawn from the line is distorted resulting in a High Total Harmonic Distortion (THD) and Low Power Factor (PF). Hence there is a continuous need for Power factor improvement and reduction of line current harmonics. The most popular topology for Active PFC is a boost converter as it d...

Journal: :hepatitis monthly 0
leila pishraft sabet department of virology, school of public health, tehran university of medical sciences, tehran, ir iran; razi vaccine and serum research institute, karaj, ir iran tahereh taheri molecular immunology and vaccine research laboratory, pasteur institute of iran, tehran, ir iran arash memarnejadian hepatitis and hiv laboratory, pasteur institute of iran, tehran, ir iran talat mokhtari azad department of virology, school of public health, tehran university of medical sciences, tehran, ir iran fatemeh asgari department of virology, school of public health, tehran university of medical sciences, tehran, ir iran ramin rahimnia department of nano medicine, school of advanced technologies in medicine, tehran, ir iran

background hypervariability of hcv proteins is an important obstacle to design an efficient vaccine for hcv infection. multi-epitope vaccines containing conserved epitopes of the virus could be a promising approach for protection against hcv. objectives cellular and humoral immune responses against multi-epitope dna and peptide vaccines were evaluated in balb/c mice. materials and methods in th...

Journal: :IEEE Trans. Industrial Electronics 2008
Esam H. Ismail Ahmad J. Sabzali Mustafa A. Al-Saffar

A buck–boost-type unity power factor rectifier is proposed in this paper. The main advantage of the proposed rectifier over the conventional buck–boost type is that it can perform input power factor correction (PFC) over a wider voltage conversion range. With a single switch, a fast well-regulated output voltage is achieved with a zero-current switch at turn-on. Moreover, the switch voltage str...

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