نتایج جستجو برای: high cmrr current input stage

تعداد نتایج: 3089707  

2017
Chun-An Cheng En-Chih Chang Ching-Hsien Tseng Tsung-Yuan Chung

Abstract: This paper presents a single-stage alternating current (AC)/direct current (DC) light-emitting diode (LED) tube lamp driver for energy-saving indoor lighting applications; this driver features power-factor corrections and soft switching, and also integrates a dual buck-boost converter with coupled inductors and a half-bridge series resonant converter cascaded with a bridge rectifier i...

2017
Ming Shen Jan H. Mikkelsen Ole K. Jensen Torben Larsen

This paper presents a compact two-stage ultrawideband low-noise amplifier (LNA). A common-gate topology is adopted for the input stage to achieve wideband input matching, while a cascode stage is used as the second stage to provide power gain at high frequencies. A low power consumption and a small chip area are obtained by optimizing the performance of the LNA with tight constraint on biasing ...

پایان نامه :دانشگاه آزاد اسلامی واحد کرمانشاه - دانشکده زبانهای خارجی 1393

previous studies regarding teachers’ beliefs have revealed that teachers’ beliefs have influence on their classroom practices. the current study aimed to investigate the effect of teachers’ beliefs about teaching reading strategies on students’ motivation and success in reading comprehension in the context of english teaching as a foreign language in high schools of mazandaran, iran. data were ...

2015
Lavlesh Sharma Shyam Akashe G. Masetti S. Graffi D. Golzio L. Colalongo M. Quarantelli C. Walravens S. Van Winckel J. M. Redoute

In this paper a high resistant EMI interference CMOS operational amplifier has been designed and simulated. It is designed by implementing easy modification of the differential pair with active current load. The power amplifier seems to be leading the output voltage power with respect to the input supply given, the two stage power amplifier was designed in this current technology and results ar...

1998
Yiqing Zhao Dusan Borojevic Dan Y. Chen Fred C. Lee Chih-Yi Lin Jinrong Qian Guichao Hua

Electrical Engineering (ABSTRACT) The conventional power factor correction circuit has a fixed output voltage. However, in some applications, a PFC circuit with a wide output voltage range is needed. A single phase power factor correction circuit with wide output voltage range is developed in this work. After a comparison of two main power stage candidates (Buck+Boost and Sepic) in terms of eff...

Journal: :Journal of Research of the National Bureau of Standards 1938

A. Dastfan, F. Behrangi,

A conventional high power DC power supply systems consist of a three-phase diode rectifier followed by a high frequency converter to supply loads at regulated DC voltage. These rectifiers draw significant harmonic currents from the utility, resulting in poor input power factor. In this paper, a DC power supply based on dual-bridge matrix converter (DBMC) with reduced number of switches is p...

Journal: :IEEE Access 2021

High gain DC-DC converters are increasingly being used in solar PV and other renewable generation systems. Satisfactory steady-state dynamic performance, along with higher efficiency, is a pre-requirement for selecting the converter these applications. In this paper, non-inverting high boost has been proposed. The proposed only one switch continuous input current reduced voltage stress across s...

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