نتایج جستجو برای: voltage stability margin

تعداد نتایج: 433600  

Journal: :Circuits and Systems 2011
Shilpi Birla Rakesh Kumar Singh Manisha Pattanaik

Due to continuous scaling of CMOS, stability is a prime concerned for CMOS SRAM memory cells. As scaling will increase the packing density but at the same time it is affecting the stability which leads to write failures and read disturbs of the conventional 6T SRAM cell. To increase the stability of the cell various SRAM cell topologies has been introduced, 8T SRAM is one of them but it has its...

2013
R. Uma Alok Katiyar K. Anusudha P. Dhavachelvan

This study presents the design of low power 9T SRAM cell using dynamic domino logic to achieve low power dissipation. The internal structure of the proposed 9T SRAM has cross coupled dynamic inverters which periodically updates the internal node voltage levels which, increase the read and write stability of the circuit. The SRAM design also has charge keeper transistor which resolves the proble...

2017
Shiwu Liao Wei Yao Xiaomeng Ai Jinyu Wen Qing Liu Yanhong Jiang Jian Zhang Jingzhe Tu Gianfranco Chicco

The multi-infeed effective short-circuit ratio (MESCR) is widely used in indicating the strength of multi-infeed AC/DC power systems. However, when the widely used MESCR was adopted to evaluate the stability margin of the Eastern China Grid including three infeed ultra-high-voltage DC (UHVDC) and five high-voltage DC transmission lines in 2016, the MESCR result indicated the system was strong e...

2010
Randy W. Mann Jiajing Wang Satyanand Nalam Sudhanshu Khanna Geordie Braceras Harold Pilo Benton H. Calhoun

0038-1101/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.sse.2010.06.009 * Corresponding author. E-mail addresses: [email protected] (R.W. Ma Wang), [email protected] (S. Nalam), sk4fs@virgin us.ibm.com (G. Braceras), [email protected] (H. Pilo) Calhoun). Large scale 6T SRAM beyond 65 nm will increasingly rely on assist methods to overcome the functional limitations associated with scal...

2011
P. Hari Krishna Prasad Venu Gopal Rao

A constant voltage regulator, to supply constant power loads, is realized using a Switched-capacitor converter. Exhaustive studies have been carried out to find the suitability of available control schemes and finally one control scheme investigated with (i) operation of the converter at different crossover frequencies (ii) operation of the converter at different phase Margins. Various operatin...

Journal: :Microelectronics Journal 2013
Adam Teman Anatoli Mordakhay Alexander Fish

The development of low-voltage SRAM bitcells with ultra-low static power consumption has become a primary focus of memory design in recent years. The analysis of these bitcells requires the evaluation of dynamic noise margin metrics in addition to the traditional static noise margins. In this paper, we extend the presentation of our recently proposed quasi-static RAM (QSRAM) cell that employs a...

2015
Muhammad Shoaib Khalid Xiangning Lin Yixin Zhuo Ramesh Kumar Muhammad Kashif Rafique

There is cause and effect relationship between increase in load due to increasing penetration of electric vehicles (EV) load that causes unbalanced conditions and affect the power quality such as voltage degradation and even damage the equipment if the system is not properly managed. This paper presents detailed review of energy supply and management in conjunction with load synchronization thr...

2008
Venkataramana Ajjarapu A. P. Sakis Meliopoulos

(PSERC) is a multi-university Center conducting research on challenges facing the electric power industry and educating the next generation of power engineers. More information about PSERC can be found at the Center's website: Notice Concerning Copyright Material PSERC members are given permission to copy without fee all or part of this publication for internal use if appropriate attribution is...

2015
Varaprasad Janamala

In the present scenario of the power system the main issue is the voltage stability enhancement which plays an important role in the complex network. This paper introduces the forthcoming technology employing the integration of Flexible AC transmission System (FACTS) device in to the system. Betwixt of all the FACTS devices this paper mainly rivet on Unified Power Flow Controller (UPFC). This i...

2013

The Challenge A main bottleneck precluding the on-chip integration of a switching power converter for energy management purposes is the large area of the reactive components, the resulting high output ripples and the tendency to exhibit fast-scale instabilities. Through a compact IC-suitable circuit, the presented innovation extends the design space by concurrently decreasing the size of reacti...

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