نتایج جستجو برای: power capacitor

تعداد نتایج: 493468  

2013
Meenu Singh

This paper presents 10-bit, 1.5 MS/s, 2.5V, Low Power Pipeline analog to digital converter using capacitor coupling techniques. A capacitance coupling foldedcascode amplifier effectively saves the power consumption of gain stages of ADC in a 0.25 μm CMOS technology. The ADC also achieves Low power Consumption by the sharing an op-amp between two successive pipeline stage further reduction of po...

2013
Yeon-Ho Jeong Young-Chan Jang

A 10-bit 100-kS/s successive approximation register (SAR) analogto-digital converter (ADC) with rail-to-rail input range is proposed for a low power sensor interface. It consists of a time-domain comparator, a split capacitor-based digital-to-analog converter (SC-DAC) and a SAR logic. The time-domain comparator with an offset calibration technique is used to achieve a resolution of 10-bit. To r...

2012
Pravin M. Sonwane

This paper presents Genetic Algorithm based approach to shunt capacitor placement in distribution systems specially IEEE 30 bus system for optimal configuration with the multi-objective placement problem for enhancement of distribution system reliability. IEEE 30 bus is well defined and load flow is evaluated to observe the line losses, p.f. and voltage profile. Placement of shunt capacitor ban...

2011
M. A. Beg M. K. Khedkar G. M. Dhole

With wide spread use of sensitive nonlinear electronic devices the switching transients are capable of degrading the quality of power. Utilities often switch the shunt capacitor banks to cope up with sagging voltage levels, thereby generating transients, which travel into the network of end users. Capacitor switching can cause over voltage, resonance and in advert tripping of Adjustable Speed D...

2014
S. Narasimha M. Sushama

This paper main intents to present a flying capacitor multilevel inverter based shunt active power filter(APF) with Sigma-Delta modulation. A multilevel Sigma-Delta modulation(SDM) control can be applied to control power section of APF intention to reducing sensitivity to flying capacitor voltage deregulation and mending modulator performance. In these control section of APF perfect harmonic ca...

2005
T. TALBERT N. DAUDE C. JOUBERT

Polypropylene metallized capacitors are of general use in power electronics because of their reliability, their self healing capabilities, and their low price. Though the behavior of metallized coiled capacitors has been discussed, no work was done about stacked and flattened metallized capacitors. The purpose of this article is to propose a simple analytical low frequency model of stacked capa...

2009
W J Wu A M Wickenheiser T Reissman E Garcia

This paper presents analytical models for studying the transient behavior of several power harvesting circuit topologies for use with piezoelectric bending transducers. Specifically, the problem of charging a large storage capacitor, which is inherently a time-varying process, is considered. Three circuit designs are studied—direct charging, synchronized switching and discharging to a storage c...

2014
Meera Shareef Syed Satish Kumar Injeti Iman Ziari Gerard Ledwich Arindam Ghosh

Nowadays the research on the integration of DG's and Capacitor banks in radial distribution system is going on, to meet the increased electricity demand and to improve the technical aspects like power loss reduction, voltage profile improvement etc. , where the major concerns are finding the optimal sizing of DG's and Capacitor banks and their locations. This paper presents applicatio...

2014
Y. Mohamed Shuaib

Power generated in generating station is transmitted through transmission lines and fed to the consumers through distribution substation. The power distributed in to the network has losses, which is greater in distribution system than the transmission system. This problem could be addressed by placing capacitor at strategic location due to which the kW loss can be minimized by improving the vol...

2014
Neha Goyal Pushpendra Singh

This paper presents an efficient approach for optimal placement of capacitor in radial distribution system, with an objective of improving the voltage profile and reduction of power loss. Distribution system is a link between high voltage transmission system and the low voltage end users, so it’s very essential to keep the system healthy and with minimum losses. The present work is devoted to d...

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