WIRELESS VIBRATION SENSOR FOR TUNNEL CONSTRUCTION

Size: px
Start display at page:

Download "WIRELESS VIBRATION SENSOR FOR TUNNEL CONSTRUCTION"

Transcription

1 WIRELESS IBRATION SENSOR FOR TUNNEL CONSTRUCTION Soon-Wook Kwon Assisan Professor Dep. of Archiecural Engr. SungKyunKwan Universiy Suwon,Gyeonggido Jung-Yeol Kim Researcher Korea Insiue of Consrucion Technology Goyang, Korea, Hyun-Seok Yoo Researcher Korea Insiue of Consrucion Technology Goyang, Korea, Moon-Young Cho Senior Research Fellow Korea Insiue of Consrucion Technology Goyang, Korea, Absrac: During and afer unnel consrucion, many problems including civil peiions and consrucion delay resul from unnel deformaion, ground selemen, ground vibraion, and unnel lining crack. In relaion o unnel consrucion and mainenance, his sudy explains a developmen background of small wireless vibraion sensors and heir applicaions based on RF(Radio Frequency)-MEMS (Micro Elecro Mechanical Sysem) echnology. The advanages and usefulness of he wireless auomaic monioring sysem is addressed compared wih he convenional wired or survey measuremen sysems. Thus, he sudy provides a framework of he process for monioring, manipulaing, and ransferring daa from MEMS sensor and explains he applicaion of he new developed auomaic monioring sysem for unnel consrucion and mainenance. Keywords: Mems, Sensor Neworks, Srucural Healh Monioring 1. Inroducion Tunnel consrucion is gradually increasing due o he developmen and upgrade of infrasrucures in Korea where 70% of he naion is composed of mounain area, and he mainenance of unnel in operaion is also becoming more imporan due o he complex environmen change in viciniy of he exising unnel and he deerioraion of unnel srucure. A he same ime, public concerns have risen over unnel consrucion because of he effec of he unnel-induced many problems such as damage in nearby srucures and uiliies, vibraion, noise, and environmenal impac. Peck (R. B. Peck ) saed hree issues in unneling, which are firs, mainaining sabiliy and safey during consrucion, second, minimizing unfavorable impac on hird paries, and finally performing inended funcion over he life of a projec [1]. Terzaghi (K. Terzaghi) poined ou ha nearly all quesions raised during unnel design and consrucion may no be answered wihou field measuremens and ess[2]. And as many oher unnel engineers have been experienced, monioring is a key elemen o beer accomplish unnel consrucion and mainenance, and a sysemaic monioring plan should be carried ou for acquisiioning useful and reliable field measuremen daa. Monioring of unnel during consrucion includes he measuremen of ground displacemen and pore waer pressure in he viciniy of a unnel, he measuremen of sress and srain in unnel srucure, and he measuremen of he displacemen in adjacen srucures or uiliies along he unnel roue. Daa acquisiion obained from a sysemaic monioring plan plays many imporan roles in various aspecs[3][4]. The daa can be used o provide a guide of modificaion of consrucion mehods or procedures o complee unnel consrucion more safely and economically and o minimize he consrucion-induced hird pary impac. Besides ha he daa record may be used for he research purpose and he design of similar unnel consrucion in he fuure. For unnels consruced wih he blasing mehod, noise and vibraion could induce significan problems and heir effecs should be moniored. Monioring of unnel in operaion is relaed o he inspecion of he exising sae in a unnel. The consrucion aciviies such as new unnel or building consrucion in he viciniy of he exising unnel can significanly change he sress and srain sae in he exising unnel srucure, frequenly inducing unnel sabiliy and safey problems. In addiion, as ime goes on, a unnel srucure becomes deerioraed and he surrounding environmen can change physically or chemically. Thus, he exising unnel srucure could be in he condiion of insabiliy. Again, he monioring of unnel in operaion should also be kep on in a sysemaic monioring plan o have he exising unnel in beer qualiy and in case o provide he appropriae repair or reinforcemen measures. Monioring insrumens have been changed from he convenional devices such as he level survey o he auomaic devices using he elecric cables and sensors. The auomaic monioring sysems can provide more effecively he daa acquisiion in exensive area and coninuous real ime. However, up o dae, mos monioring of unnel is wire-based sysems for acquisiioning and ransferring he field daa. The wire-based sysems frequenly inerrup consrucion procedure, causing consrucion delays, and are expensive o insall and mainain he sysems during he measuremen period. In addiion, he wire-based sysems can only be applied for a limied area and he sysems become incapable if he wire is cu, which happens frequenly. To overcome hose disadvanages and limiaions of monioring sysems, he wireless-based monioring sysems, which are based on small wireless vibraion sensors and RF (Radio Frequency)-MEMS (MicroElecroMechanical Sysem), have been developed. This paper describes he background of he sysem developmen and he applicaions o unnel monioring and provides a framework of he -614-

2 process for monioring, manipulaing, and ransferring field daa using he new developed sysems. 2. MEMS-based vibraion sensor module 2.1 Developmen objecive Blasing has always been he mos prevalen and effecive means of desroying rocks. However, several problems arise from blasing, such as vibraion of he ground, scaering of rock fragmens and he long-lasing sound. In paricular, according o he Review of Noise and ibraion Tolerance Sandard of Blasing [5], low vibraion can lead o serious damage o livesock, including pigs and roe deer, as well as o he human body. The sandard for vibraion olerance suggesed by he Minisry of Environmen appears o be =0.09cm/sec (70dB), which canno be me when blasing is implemened in an urban area. Consequenly, civil peiions and lawsuis agains blasing ceaselessly ake place. Blasing vibraion is measured o obain daa ha can be uilized o undersand he vibraion around he blased area and he srucure in a consrucion sie and o elucidae he adverse impac of vibraion. In addiion, accurae blasing vibraion daa can be used o calculae he opimal blasing paern, as well as o yield he appropriae amoun of gunpowder o be loaded for a ime. A wide range of effors is being made o uilize he daa o validae is influence on he concree lining during unnel consrucion and o yield he safe disance from he area where concree is being pu. Thus, measuring he blasing vibraion is a very significan and fundamenal iem in unnel digging. Therefore, grea and far-reaching effecs are expeced from he developmen of a MEMS-based vibraion sensor wih simple insallaion o measure vibraion in a more convenien and less expensive way. The objecive of his research is o develop a MEMS-based wireless acceleraion sensor and implemen experimens o verify he possibiliy of replacing he funcions and performance of convenional blasing vibraion sensors. Furhermore, i also aims o easily and convenienly obain blasing vibraion daa by realizing a wireless sensor nework hrough MEMS sensors equipped wih a wireless RF module. 2.2 Problems of exising vibraion sensors Convenional vibraion sensors are composed as shown in Figs. 1 and 2 and are designed o simulaneously measure vibraion and noise. They may vary depending on ype, bu in general, i has 1 o 8 inpu channels so ha a variey of ypes of sensors for vibraion measuremen (acceleraion, velociy and ohers) can be conneced. A vibraion sensor module is comprised as a package consising of a sensor o measure vibraion and noise, a cable and a daa logger for daa analysis. In he invesigaion, an exper is required o operae a vibraion sensor module for blasing and one o wo sensors for vibraion measuremen can be aached o an insrumen. As for he experimenal blasing in a unnel, a vibraion sensor equipped wih wo sensors, one for vibraion and he oher for noise, is evaluaed for operaion in he cener of a securiy building. (When blasing a unnel, 4 o 5 vibraion sensors are needed and as many people are also required. The purchase price for a vibraion sensor module is KRW 8 o 10 million and he value of lease per monh is KRW 600,000 and 800,000). The problem wih convenional vibraion sensors is ha many people and many gauges are needed due o is consrain of only a maximum of one or wo sensors can be equipped even if vibraion needs o be measured a several poins. Therefore, when complicaed vibraions need o be measured a differen posiions, as many vibraion sensors as sensors mus be purchased, which is remendously expensive Figure 1. Composiion of a convenional vibraion sensor module Figure 2. Insalled shape of convenional vibraion sensor modules 3. Developmen of a prooype MEMS-based vibraion sensor module 3.1 Design and Manufacure of MEMs ibraion Sensor The acceleromeer is a capaciy-ype vibraion sensor ha can read changes in he sensing capaciance in accordance wih inpu acceleraion as shown in Figure The acceleromeer consiss of one ineria mass and four suppor beams. The sensing elecrodes are arranged a he righ and lef of he ineria mass and designed so ha he movemen direcion of he ineria mass is reverse o he direcion of he changes in he sensing capaciy. This is called he differenial capaciance sensing mehod, which -615-

3 has he advanage of increased lineariy in comparison wih he single capaciance sensing mehod. MEMS Accelero DC Power Funcion Excier Excier Charge Signal Figure 5. Composiion of Tes Equipmen 3.3 Resuls and analysis of he performance es Figure 3. Concepual map of a prooype MEMS sensor I was analyzed ha he deviaion in he oupu signal was no regular in comparison o he sensors currenly in use. The error rae was shown a 3% and 4% for #2 and #4, respecively as shown in Figure 6 and 7. The reasons were inerpreed o be he noise of he circui, non-homogeneiy during he manufacuring process, and non-homogeneiy of he propery of silicon, which was used as he MEMS elemen Figure 4. Signal processing of an acceleromeer ibraion sensor is manufacured using MEMS manufacuring echnology wih a semiconducor manufacuring process. The sensor was made hrough a oal of wo lihographic processes and a oal of hree eching processes. A hin gold film was formed on he SIO (Silicon On Insulaor) wafer, and hen he hin film became he gold pad ha would connec o he exernal signal processing circui hrough lihography and eching processes. The pad was changed ino a sensor-ype hrough lihography and eching processes, and finally, when he silicon dioxide film ha fixes he moving par of he sensor is removed in he las eching process, he vibraion sensor is compleed. The manufacured MEMS-based vibraion sensor is used by packaging wih a silicon DIP(dual in-line package). 3.2 Tes Mehods for he Mems Sensor In order o evaluae he performance of he manufacured sensor based on MEMS echnology and idenify improvemens, we conduced a precision es a he Korea Tesing Laboraory (KTL). The purpose of he es was o precisely analyze he vibraion measuremen capaciy of he MEMS-based vibraion sensor module. The es of he MEMS-based vibraion module was conduced by aaching he vibraion module o a vibraor as shown in Figure 5, which can provide sandard vibraion, and vibraing i up and down. A reference acceleromeer was also aached in order o compare he measured values. 0.3 ) 0.2 m ( e 0.1 g a l o u p u-0.2 O Frequency(Hz) Figure 6. Measuremen deviaion of he #2 sensor(m) ) 0.2 m ( e 0.1 g a l 0 o u p-0.2 u O Frequency (Hz) Figure 7. Measuremen deviaion of he #4 sensor(m) 3. Improvemen of elemens for he MEMS-based vibraion sensor s design and manufacure Based on he performance analysis and improvemens of he vibraion sensor developed during he firs year of research, we exered effors o improve he elemens for he MEMS sensor. The research was largely performed in wo ypes horizonal and verical. In paricular, he horizonal ype was improved from he ype sudied in he firs year. I is a -616-

4 mehod o deec changes in capaciance resuling from he gap beween elecrodes during he verical vibraion of a mass, which is shown in Fig. 8. he semiconducor manufacuring processes and i is possible o design and implemen differen ypes of elemens on a Wafer a a ime, so ha he horizonal and verical ypes are refleced in designing he wafer. Figure 8. Design improvemen for he horizonal ype (1 s ) The sensing elecrodes are arranged a he righ and lef of he ineria mass and designed so ha he movemen direcion of he ineria mass is reverse o he direcion of he changes in he sensing capaciy. This is called he differenial capaciance sensing mehod, which has he advanage of increased lineariy in comparison wih he single capaciance sensing mehod.. C g C l C r = g ε 0 A d 2 N 2 d 0 = k d m 2 Nε 0 A m = 2 d k o Eq.1 C : difference of capaciy of acceleromeer, g: approved acceleromeer, C l : capaciy of lef comb, C R : capaciy of righ comb, d 0 : iniial gab of comb, d : difference of comb gab, m: magniude of acceleromeer, k: rigidiy of spring in acceleromeer, ε 0 :a dielecric consan of air, A: area of overlap of comb In accordance wih he sensing principles of a vibraion sensor, he relaion beween inpu acceleraion and capaciance change is shown in Eq. 1. As shown in he equaion, sensiiviy is in proporion o he area of he comb and he mass of he inerial mass, while in inverse proporion o he gap beween he sensing elecrodes and he siffness of he suppor beam. The horizonal ype was designed in hree differen ypes depending on he acceleraion range and frequency, as shown in Table 1. A verical ype was newly developed during he second year of research. As shown in Fig. 9, i is a mehod of vibraion measuremen using he changes in capaciance when he sensing elecrodes aached in he same direcion o he vibraion of he mass is insered beween he fixed elecrodes. In he design, i was expeced ha he mass and he number of elecrode can be added enough o demonsrae he desired performance, and i is no longer necessary o design differen ypes like he horizonal ype. Therefore, i was designed as a single ype. In addiion, MEMS is one of Figure 9. Design improvemen for he verical ype (1 s ) nd design and manufacure The yield rae, he rae of complee producs obained from a wafer, was shown o be very low and he problem of durabiliy occurred in he form of an inner shor during operaion. The causes of he problem found wih he elemens manufacured during he firs year of research were analyzed o be as follows: 1 Gold powder accrues in he course of he laser-dicing process (he final process of cuing a sensor from a wafer) and causes conaminaion beween elecrodes. 2 The spring srucure of a sensor is easily broken in he wafer-handling process, bu i is no found during he microscope inspecion. 3 Abnormaliy of he ech profile during he deep si-ech process A new design was implemened by aking he abovemenioned iems ino consideraion. 1 Inspecion of he laser-dicing equipmen and spli es on he laser power 2 Reseing of he safey facor based on he raio of he moving mass agains he spring siffness in he 3 rd acceleromeer 3 To preven he pull-in phenomenon beween he moving comb and he fixed one, he ip srucure was added o each of hem. 4 Progression of he process afer confirming he SEM image of he ech profile in he deep si ech process Above all, here were no srucural changes in he horizonal ype, bu he number and widh of he spring and he moving displacemen of he mass were opimized and 4 differen ypes were designed o fi ino hree differen sensing areas, as shown in Fig

5 Figure 10. Design improvemen for he horizonal ype (2 nd ) 3.3 Developmen of a MEMS-based wireless blasing vibraion sensor The sysem suggesed in he paper is equipped wih a MEMS-based acceleraion sensor, a miniaurized daa logger, and a Zigbee-based wireless sensor nework chip, as shown in Fig. 12. To develop a small sensor like his, he hree cuing-edge echnologies MEMS-based vibraion sensor, developmen of he MCU in replacemen of he daa logger, he Zigbee-based wireless sensor nework echnology - are required. The wireless blasing vibraion sensor presened in he paper consiss of a number of sensors and a noebook compuer (or a PC). The sensor can be added up o a maximum of 255. Each sensor has a Zigbee-based wireless sensor nework chip inside so ha he sensors can wirelessly send and ransmi he sensed daa among each oher. An amplifier can be addiionally equipped o send and receive disan daa, which does no require an addiional daa logger or anoher power faciliy. Wireless Anenna 50mm Wireless Communicaion Daa Buffer Memory ZigBee Chip Daa Encoding Sensor Module Exernal Connecion Daa Transfer Nex, he design of he verical ype developed during he firs year of research was changed by eliminaing he upper elecrodes and insering he elecrodes inside he mass, as shown in Fig. 11. In addiion, he number and widh of he spring and he moving displacemen of he mass were opimized, as shown in Table 2. We obained saisfacory resuls from he ess by designing and manufacuring a es rig in he abovemenioned manner. We plan o verify he performance of he es rig by conducing a precision es a he Korea Tesing Laboraory 100mm 24pin Compue. Core Sensing Inerface Daa Sampling MEMS Acceleromee Micro Processor Board Memory A/D Converer Figure 12. Sensor srucure Wireless Sensor 24pin link Socke Baery Li-ion Baery Noebook Wireless Anenna 50m 100mm Figure 13. Composiion of he wireless blasing vibraion.sensor 4. Conclusion Figure 11. Design improvemen for he verical ype (2 nd ) The final developed produc of his sudy is a MEMS-based vibraion sensor module ha can be applied in he consrucion of a wireless sensor nework for he monioring of a srucure. This module is a SoC produc (Sysem on a Chip) where a sensor, signal processing circui, wireless ransmier/receiver and self-driving power are on a chip. We ried o deermine he appropriae performance wih he -618-

6 prooype of he developed MEMS-based vibraion sensor in order o use he resul in designing he complee produc. The resuls consis of he layou of he MEMS-based vibraion sensor, relaed daa and he complee produc (including packaging). The MEMS-based vibraion sensor can be used wih a commercial wireless ransceiver module where here is a MEMS sensor par and a signal processing circui and is driving power uses he power of a wireless ransmier/receiver Moe. The prooype of he MEMS-based vibraion sensor senses and measures one-way acceleraion wihin he range of -50 and +50g (g: acceleraion of graviy) and has a vibraion measuremen bandwidh beween 0Hz up o 1kHz a 10mg of resoluion. The changes in he measured acceleraion of graviy will be exchanged as daa afer being inerpreed over he wireless ransceiver. We will sabilize he performance of he device and enable i o measure 2-axial and 3-axial acceleraion in succeeding sudies. REFERENCES [1] Peck, R. B., 1969, "Deep excavaions and unneling in sof ground." Pro 7h In'l Conf. Soi. Mech. and Foun. Engr., Mexico Ciy, Sae of The Ar, pp [2] Terzaghi, K., 1942, "Liner-plae unnel on he Chicago subway." ASCE Transacions 108, pp [3] Obada, M., Lee, H. D., Bhai, M. A., and Maclean, B., 2003, Full-Scale Field Evaluaion of Microelecromechanical Sysem-Based Biaxial Srain Transducer and Is Applicaion in Faigue Analysis, Journal of Aerospace Engineering, olume 16, Issue 3, pp [4] Lynch, J. P., Parridge, A., Law, K. H. e al., 2003, Design of Piezoresisive MEMS-Based Acceleromeer for Inegraion wih Wireless Sensing Uni for Srucural Monioring, Journal of Aerospace Engineering, olume 16, Issue 3, pp , July [5] Oh, Y. S., 2002, Tunnel Mainenance Manual, Korea Infrasrucure Safey & Technology Corporaion -619-

7 Table 1. Funcional Improvemens of Mems ibraion Sensor (by Type) 1 s Division olage Sensiiviy Measuremen Frequency Mass Spring Comb (No.) Type1 400m/G 40.8 m/m/s2 5G 49m/s 0~100Hz 2000*500* *10*40 60(*2) Type2 100m/G 10.2 m/m/s2 20G 196m/s 0~300Hz 2000*1000* *10*40 60(*2) Type3 40m/G 4.08 m/m/s2 50G 490m/s 0~1000Hz 3000*1000* *10*40 90(*2) Table 2. Funcional Improvemens of Mems ibraion Sensor (by Type) -2 nd Division olage Sensiiviy Measuremen Frequency Mass Spring Comb (No.) Type 1-1 Type m/G 40.8 m/m/s2 5G 49m/s 0~100Hz 2000*500* *5*40 30(*2) 400m/G 40.8 m/m/s2 5G 49m/s 0~100Hz 2000*500* *10*40 43(*2) Type2 100m/G 10.2 m/m/s2 20G 196m/s 0~300Hz 2000*1000* *10*40 30(*2) Type3 40m/G 4.08 m/m/s2 50G 490m/s 0~1000Hz 3000*1000* *10*40 43(*2) -620-

P. Bruschi: Project guidelines PSM Project guidelines.

P. Bruschi: Project guidelines PSM Project guidelines. Projec guidelines. 1. Rules for he execuion of he projecs Projecs are opional. Their aim is o improve he sudens knowledge of he basic full-cusom design flow. The final score of he exam is no affeced by

More information

Investigation of Novel Ultrasonic Positioning Method Installed in Sensor Network

Investigation of Novel Ultrasonic Positioning Method Installed in Sensor Network PIERS ONLINE, VOL. 5, NO. 4, 2009 321 Invesigaion of Novel Ulrasonic Posiioning Mehod Insalled in Sensor Nework Misuaka Hikia, Yasushi Hiraizumi, Hiroaki Aoki, Junji Masuda, and Tomoaki Waanabe Faculy

More information

Development of Temporary Ground Wire Detection Device

Development of Temporary Ground Wire Detection Device Inernaional Journal of Smar Grid and Clean Energy Developmen of Temporary Ground Wire Deecion Device Jing Jiang* and Tao Yu a Elecric Power College, Souh China Universiy of Technology, Guangzhou 5164,

More information

AN303 APPLICATION NOTE

AN303 APPLICATION NOTE AN303 APPLICATION NOTE LATCHING CURRENT INTRODUCTION An imporan problem concerning he uilizaion of componens such as hyrisors or riacs is he holding of he componen in he conducing sae afer he rigger curren

More information

Electrical connection

Electrical connection Reference scanner Dimensioned drawing en 02-2014/06 50117040-01 200 500mm Disance on background/reference 10-30 V DC We reserve he righ o make changes DS_HRTR46Bref_en_50117040_01.fm Robus objec deecion

More information

the next step in tyre modeling

the next step in tyre modeling Igo Besselink Applicaions of SWIFT-Tyre: he nex sep in yre modeling TNO Auomoive TNO Auomoive: applicaions of SWIFT-Tyre November 2001 1 Conens Relaion beween MDI and TNO Auomoive New developmens for ADAMS

More information

A NEW DUAL-POLARIZED HORN ANTENNA EXCITED BY A GAP-FED SQUARE PATCH

A NEW DUAL-POLARIZED HORN ANTENNA EXCITED BY A GAP-FED SQUARE PATCH Progress In Elecromagneics Research Leers, Vol. 21, 129 137, 2011 A NEW DUAL-POLARIZED HORN ANTENNA EXCITED BY A GAP-FED SQUARE PATCH S. Ononchimeg, G. Ogonbaaar, J.-H. Bang, and B.-C. Ahn Applied Elecromagneics

More information

ECMA st Edition / June Near Field Communication Wired Interface (NFC-WI)

ECMA st Edition / June Near Field Communication Wired Interface (NFC-WI) ECMA-373 1 s Ediion / June 2006 Near Field Communicaion Wired Inerface (NFC-WI) Sandard ECMA-373 1 s Ediion / June 2006 Near Field Communicaion Wired Inerface (NFC-WI) Ecma Inernaional Rue du Rhône 114

More information

Dimensions. Model Number. Electrical connection emitter. Features. Electrical connection receiver. Product information. Indicators/operating means

Dimensions. Model Number. Electrical connection emitter. Features. Electrical connection receiver. Product information. Indicators/operating means OBE-R-SE Dimensions.8.8 ø..75 7.5 6. 5 6.7 4.9 4. 5.9 ø.6 Model Number OBE-R-SE Elecrical connecion emier Thru-beam sensor wih m fixed cable Feaures 45 cable oule for maximum mouning freedom under exremely

More information

Dimensions. Transmitter Receiver ø2.6. Electrical connection. Transmitter +UB 0 V. Emitter selection. = Light on = Dark on

Dimensions. Transmitter Receiver ø2.6. Electrical connection. Transmitter +UB 0 V. Emitter selection. = Light on = Dark on OBE-R-SE Dimensions Transmier.. 7.5 9..5.8 4.9 4 5 M 8.9 7.5 9..5.8 4 5 M 8.9 ø.6 ø.6 Model Number OBE-R-SE Thru-beam sensor wih m fixed cable Elecrical connecion Transmier Feaures BN +UB WH IN Ulra-small

More information

Dimensions. Transmitter Receiver ø2.6. Electrical connection. Transmitter +UB 0 V. Emitter selection. = Light on = Dark on

Dimensions. Transmitter Receiver ø2.6. Electrical connection. Transmitter +UB 0 V. Emitter selection. = Light on = Dark on OBE-R-SE Dimensions Transmier.. 7.5 9..5.8 4.9 4 5 M 8.9 7.5 9..5.8 4 5 M 8.9 ø.6 ø.6 Model Number OBE-R-SE Thru-beam sensor wih m fixed cable Elecrical connecion Transmier Feaures BN +UB WH IN Ulra-small

More information

4 20mA Interface-IC AM462 for industrial µ-processor applications

4 20mA Interface-IC AM462 for industrial µ-processor applications Because of he grea number of indusrial buses now available he majoriy of indusrial measuremen echnology applicaions sill calls for he sandard analog curren nework. The reason for his lies in he fac ha

More information

Investigation and Simulation Model Results of High Density Wireless Power Harvesting and Transfer Method

Investigation and Simulation Model Results of High Density Wireless Power Harvesting and Transfer Method Invesigaion and Simulaion Model Resuls of High Densiy Wireless Power Harvesing and Transfer Mehod Jaber A. Abu Qahouq, Senior Member, IEEE, and Zhigang Dang The Universiy of Alabama Deparmen of Elecrical

More information

A New Measurement Method of the Dynamic Contact Resistance of HV Circuit Breakers

A New Measurement Method of the Dynamic Contact Resistance of HV Circuit Breakers A New Measuremen Mehod of he Dynamic Conac Resisance of HV Circui Breakers M. Landry*, A. Mercier, G. Ouelle, C. Rajoe, J. Caron, M. Roy Hydro-Québec Fouad Brikci Zensol Auomaion Inc. (CANADA) Inroducion

More information

Industrial, High Repetition Rate Picosecond Laser

Industrial, High Repetition Rate Picosecond Laser RAPID Indusrial, High Repeiion Rae Picosecond Laser High Power: RAPID is a very cos efficien, compac, diode pumped Nd:YVO4 picosecond laser wih 2 W average power a 1064 nm. Is 10 ps-pulses have high pulse

More information

Installation and Operating Instructions for ROBA -brake-checker Typ

Installation and Operating Instructions for ROBA -brake-checker Typ (B.018102.EN) Guidelines on he Declaraion of Conformiy A conformiy evaluaion has been carried ou for he produc in erms of he EC Low Volage Direcive 2006/95/ EC and EMC Direcive 2004/108/EC. The Declaraion

More information

THE OSCILLOSCOPE AND NOISE. Objectives:

THE OSCILLOSCOPE AND NOISE. Objectives: -26- Preparaory Quesions. Go o he Web page hp://www.ek.com/measuremen/app_noes/xyzs/ and read a leas he firs four subsecions of he secion on Trigger Conrols (which iself is a subsecion of he secion The

More information

A Harmonic Circulation Current Reduction Method for Parallel Operation of UPS with a Three-Phase PWM Inverter

A Harmonic Circulation Current Reduction Method for Parallel Operation of UPS with a Three-Phase PWM Inverter 160 Journal of Power Elecronics, Vol. 5, No. 2, April 2005 JPE 5-2-9 A Harmonic Circulaion Curren Reducion Mehod for Parallel Operaion of U wih a Three-Phase Inverer Kyung-Hwan Kim, Wook-Dong Kim * and

More information

TESTING CREEPING DISCHARGE BEHAVIOUR OF INSULATORS FOR ISOLATED LIGHTNING PROTECTION SYSTEMS

TESTING CREEPING DISCHARGE BEHAVIOUR OF INSULATORS FOR ISOLATED LIGHTNING PROTECTION SYSTEMS IX Inernaional Symposium on Lighning Proecion 26 h -3 h November 27 Foz do Iguaçu, Brazil TESTING CREEPING DISCHARGE BEHAVIOUR OF INSULATORS FOR ISOLATED LIGHTNING PROTECTION SYSTEMS Beierl, Omar Brocke,

More information

Memorandum on Impulse Winding Tester

Memorandum on Impulse Winding Tester Memorandum on Impulse Winding Teser. Esimaion of Inducance by Impulse Response When he volage response is observed afer connecing an elecric charge sored up in he capaciy C o he coil L (including he inside

More information

Fuzzy Inference Model for Learning from Experiences and Its Application to Robot Navigation

Fuzzy Inference Model for Learning from Experiences and Its Application to Robot Navigation Fuzzy Inference Model for Learning from Experiences and Is Applicaion o Robo Navigaion Manabu Gouko, Yoshihiro Sugaya and Hiroomo Aso Deparmen of Elecrical and Communicaion Engineering, Graduae School

More information

Table of Contents. 3.0 SMPS Topologies. For Further Research. 3.1 Basic Components. 3.2 Buck (Step Down) 3.3 Boost (Step Up) 3.4 Inverter (Buck/Boost)

Table of Contents. 3.0 SMPS Topologies. For Further Research. 3.1 Basic Components. 3.2 Buck (Step Down) 3.3 Boost (Step Up) 3.4 Inverter (Buck/Boost) Table of Conens 3.0 SMPS Topologies 3.1 Basic Componens 3.2 Buck (Sep Down) 3.3 Boos (Sep Up) 3.4 nverer (Buck/Boos) 3.5 Flyback Converer 3.6 Curren Boosed Boos 3.7 Curren Boosed Buck 3.8 Forward Converer

More information

A New Voltage Sag and Swell Compensator Switched by Hysteresis Voltage Control Method

A New Voltage Sag and Swell Compensator Switched by Hysteresis Voltage Control Method Proceedings of he 8h WSEAS Inernaional Conference on ELECTRIC POWER SYSTEMS, HIGH VOLTAGES, ELECTRIC MACHINES (POWER '8) A New Volage Sag and Swell Compensaor Swiched by Hyseresis Volage Conrol Mehod AMIR

More information

Multiple Load-Source Integration in a Multilevel Modular Capacitor Clamped DC-DC Converter Featuring Fault Tolerant Capability

Multiple Load-Source Integration in a Multilevel Modular Capacitor Clamped DC-DC Converter Featuring Fault Tolerant Capability Muliple Load-Source Inegraion in a Mulilevel Modular Capacior Clamped DC-DC Converer Feauring Faul Toleran Capabiliy Faisal H. Khan, Leon M. Tolber The Universiy of Tennessee Elecrical and Compuer Engineering

More information

Design of High-linearity Delay Detection Circuit for 10-Gb/s Communication System in 65-nm CMOS

Design of High-linearity Delay Detection Circuit for 10-Gb/s Communication System in 65-nm CMOS JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE, VOL.17, NO.6, DECEMBER, 2017 ISSN(Prin) 1598-1657 hps://doi.org/10.5573/jsts.2017.17.6.742 ISSN(Online) 2233-4866 Design of High-lineariy Delay Deecion

More information

How to Shorten First Order Unit Testing Time. Piotr Mróz 1

How to Shorten First Order Unit Testing Time. Piotr Mróz 1 How o Shoren Firs Order Uni Tesing Time Pior Mróz 1 1 Universiy of Zielona Góra, Faculy of Elecrical Engineering, Compuer Science and Telecommunicaions, ul. Podgórna 5, 65-246, Zielona Góra, Poland, phone

More information

Lab 3 Acceleration. What You Need To Know: Physics 211 Lab

Lab 3 Acceleration. What You Need To Know: Physics 211 Lab b Lab 3 Acceleraion Wha You Need To Know: The Physics In he previous lab you learned ha he velociy of an objec can be deermined by finding he slope of he objec s posiion vs. ime graph. x v ave. = v ave.

More information

Evaluation of Instantaneous Reliability Measures for a Gradual Deteriorating System

Evaluation of Instantaneous Reliability Measures for a Gradual Deteriorating System General Leers in Mahemaic, Vol. 3, No.3, Dec 27, pp. 77-85 e-issn 259-9277, p-issn 259-9269 Available online a hp:\\ www.refaad.com Evaluaion of Insananeous Reliabiliy Measures for a Gradual Deerioraing

More information

Universal microprocessor-based ON/OFF and P programmable controller MS8122A MS8122B

Universal microprocessor-based ON/OFF and P programmable controller MS8122A MS8122B COMPETENCE IN MEASUREMENT Universal microprocessor-based ON/OFF and P programmable conroller MS8122A MS8122B TECHNICAL DESCRIPTION AND INSTRUCTION FOR USE PLOVDIV 2003 1 I. TECHNICAL DATA Analog inpus

More information

Control and Protection Strategies for Matrix Converters. Control and Protection Strategies for Matrix Converters

Control and Protection Strategies for Matrix Converters. Control and Protection Strategies for Matrix Converters Conrol and Proecion Sraegies for Marix Converers Dr. Olaf Simon, Siemens AG, A&D SD E 6, Erlangen Manfred Bruckmann, Siemens AG, A&D SD E 6, Erlangen Conrol and Proecion Sraegies for Marix Converers To

More information

Optical phase locked loop for transparent inter-satellite communications

Optical phase locked loop for transparent inter-satellite communications Opical phase locked loop for ransparen iner-saellie communicaions F. Herzog 1, K. Kudielka 2,D.Erni 1 and W. Bächold 1 1 Communicaion Phoonics Group, Laboraory for Elecromagneic Fields and Microwave Elecronics,

More information

EXPERIMENT #4 AM MODULATOR AND POWER AMPLIFIER

EXPERIMENT #4 AM MODULATOR AND POWER AMPLIFIER EXPERIMENT #4 AM MODULATOR AND POWER AMPLIFIER INTRODUCTION: Being able o ransmi a radio frequency carrier across space is of no use unless we can place informaion or inelligence upon i. This las ransmier

More information

Three-Level TAIPEI Rectifier

Three-Level TAIPEI Rectifier Three-Level TAIPEI Recifier Yungaek Jang, Milan M. Jovanović, and Juan M. Ruiz Power Elecronics Laboraory Dela Producs Corporaion 5101 Davis Drive, Research Triangle Park, C, USA Absrac A new low-cos,

More information

A3-305 EVALUATION OF FAILURE DATA OF HV CIRCUIT-BREAKERS FOR CONDITION BASED MAINTENANCE. F. Heil ABB Schweiz AG (Switzerland)

A3-305 EVALUATION OF FAILURE DATA OF HV CIRCUIT-BREAKERS FOR CONDITION BASED MAINTENANCE. F. Heil ABB Schweiz AG (Switzerland) 21, rue d'arois, F-75008 Paris hp://www.cigre.org A3-305 Session 2004 CIGRÉ EVALUATION OF FAILURE DATA OF HV CIRCUIT-BREAKERS FOR CONDITION BASED MAINTENANCE G. Balzer * D. Drescher Darmsad Universiy of

More information

PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, RECEIVING TYPE 8233

PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, RECEIVING TYPE 8233 INCH-POUND MIL-PRF-1/1593E 15 Augus 2012 SUPERSEDING MIL-PRF-1/1593D 17 Augus 2004 DESCRIPTION: Penode, sharp cuoff. Ouline: See figure 1. PERFORMANCE SPECIFICATION SHEET ELECTRON TUBE, RECEIVING TYPE

More information

Accurate Tunable-Gain 1/x Circuit Using Capacitor Charging Scheme

Accurate Tunable-Gain 1/x Circuit Using Capacitor Charging Scheme Accurae Tunable-Gain 1/x Circui Using Capacior Charging Scheme Byung-Do Yang and Seo Weon Heo This paper proposes an accurae unable-gain 1/x circui. The oupu volage of he 1/x circui is generaed by using

More information

Military & Space Solutions

Military & Space Solutions Miliary & Space Soluions Analog, Digial & Mixed-Signal ICs, Modules, Subsysems & Insrumenaion Sandard & Cusom Producs, DC o 110 GHz High Reliabiliy Screening for Miliary & Space Cusom Digial, Mixed-Signal

More information

An Improved Zero-Voltage-Transition Technique in a Single-Phase Active Power Factor Correction Circuit

An Improved Zero-Voltage-Transition Technique in a Single-Phase Active Power Factor Correction Circuit An Improved Zero-lage-Transiion Technique in a Single-Phase Acive Power Facor Correcion Circui Suriya Kaewarsa School of Elecrical Engineering, Rajamangala Universiy of Technology Isan Sakon Nakhon Campus,

More information

MEASUREMENTS OF VARYING VOLTAGES

MEASUREMENTS OF VARYING VOLTAGES MEASUREMENTS OF ARYING OLTAGES Measuremens of varying volages are commonly done wih an oscilloscope. The oscilloscope displays a plo (graph) of volage versus imes. This is done by deflecing a sream of

More information

Automatic Power Factor Control Using Pic Microcontroller

Automatic Power Factor Control Using Pic Microcontroller IDL - Inernaional Digial Library Of Available a:www.dbpublicaions.org 8 h Naional Conference on Advanced Techniques in Elecrical and Elecronics Engineering Inernaional e-journal For Technology And Research-2017

More information

RITEC, Inc. 60 Alhambra Rd., Suite 5 Warwick, RI (401) FAX (401) Powerful Ultrasonic Research Tool. A Modular Approach

RITEC, Inc. 60 Alhambra Rd., Suite 5 Warwick, RI (401) FAX (401) Powerful Ultrasonic Research Tool. A Modular Approach RITEC RAM-5 Versaile Compuer Conrolled Ulrasonic Sysem: Modular Approach allows Cusomizaion o Specific Experimenal Requiremens. High Power RF Burs Oupus as high as 5 kilowas for frequencies o 7 MHz. Three

More information

Direct Analysis of Wave Digital Network of Microstrip Structure with Step Discontinuities

Direct Analysis of Wave Digital Network of Microstrip Structure with Step Discontinuities Direc Analysis of Wave Digial Nework of Microsrip Srucure wih Sep Disconinuiies BILJANA P. SOŠIĆ Faculy of Elecronic Engineering Universiy of Niš Aleksandra Medvedeva 4, Niš SERBIA MIODRAG V. GMIROVIĆ

More information

The ramp is normally enabled but can be selectively disabled by suitable wiring to an external switch.

The ramp is normally enabled but can be selectively disabled by suitable wiring to an external switch. Vickers Amplifier Cards Power Amplifiers for Proporional Valves EEA-PAM-56*-A-14 Design EEA-PAM-561-A-14 for use wih valve ypes: KDG5V-5, * and KDG5V-7, 1* series EEA-PAM-568-A-14 for use wih valve ypes:

More information

Installing remote sites using TCP/IP

Installing remote sites using TCP/IP v dc Keypad from nework Whie/ 3 Whie/ 4 v dc Keypad from nework Whie/ 3 Whie/ 4 v dc Keypad from nework Whie/ 3 Whie/ 4 +v pu +v pu +v pu v dc Keypad from nework Whie/ 3 Whie/ 4 v dc Keypad from nework

More information

GaN-HEMT Dynamic ON-state Resistance characterisation and Modelling

GaN-HEMT Dynamic ON-state Resistance characterisation and Modelling GaN-HEMT Dynamic ON-sae Resisance characerisaion and Modelling Ke Li, Paul Evans, Mark Johnson Power Elecronics, Machine and Conrol group Universiy of Noingham, UK Email: ke.li@noingham.ac.uk, paul.evans@noingham.ac.uk,

More information

Lecture 11. Digital Transmission Fundamentals

Lecture 11. Digital Transmission Fundamentals CS4/MSc Compuer Neworking Lecure 11 Digial Transmission Fundamenals Compuer Neworking, Copyrigh Universiy of Edinburgh 2005 Digial Transmission Fundamenals Neworks consruced ou of Links or ransmission

More information

EE 330 Lecture 24. Amplification with Transistor Circuits Small Signal Modelling

EE 330 Lecture 24. Amplification with Transistor Circuits Small Signal Modelling EE 330 Lecure 24 Amplificaion wih Transisor Circuis Small Signal Modelling Review from las ime Area Comparison beween BJT and MOSFET BJT Area = 3600 l 2 n-channel MOSFET Area = 168 l 2 Area Raio = 21:1

More information

Pulse Train Controlled PCCM Buck-Boost Converter Ming Qina, Fangfang Lib

Pulse Train Controlled PCCM Buck-Boost Converter Ming Qina, Fangfang Lib 5h Inernaional Conference on Environmen, Maerials, Chemisry and Power Elecronics (EMCPE 016 Pulse Train Conrolled PCCM Buck-Boos Converer Ming Qina, Fangfang ib School of Elecrical Engineering, Zhengzhou

More information

Motion-blurred star image acquisition and restoration method based on the separable kernel Honglin Yuana, Fan Lib and Tao Yuc

Motion-blurred star image acquisition and restoration method based on the separable kernel Honglin Yuana, Fan Lib and Tao Yuc 5h Inernaional Conference on Advanced Maerials and Compuer Science (ICAMCS 206) Moion-blurred sar image acquisiion and resoraion mehod based on he separable kernel Honglin Yuana, Fan Lib and Tao Yuc Beihang

More information

Flow Switch LABO-RR.-032-S. Characteristics. Technical data. Ranges

Flow Switch LABO-RR.-032-S. Characteristics. Technical data. Ranges Flow Swich LABO-RR.032-S Simple and economical flow meer for piping diameers from 32 mm o 150 mm Made from plasic (opionally sainless seel) Wih apping sleeve fixing for very rapid insallaion Rero-fiing

More information

(This lesson plan assumes the students are using an air-powered rocket as described in the Materials section.)

(This lesson plan assumes the students are using an air-powered rocket as described in the Materials section.) The Mah Projecs Journal Page 1 PROJECT MISSION o MArs inroducion Many sae mah sandards and mos curricula involving quadraic equaions require sudens o solve "falling objec" or "projecile" problems, which

More information

LECTURE 1 CMOS PHASE LOCKED LOOPS

LECTURE 1 CMOS PHASE LOCKED LOOPS Lecure 01 (8/9/18) Page 1-1 Objecive LECTURE 1 CMOS PHASE LOCKED LOOPS OVERVIEW Undersand he principles and applicaions of phase locked loops using inegraed circui echnology wih emphasis on CMOS echnology.

More information

EXPERIMENT #9 FIBER OPTIC COMMUNICATIONS LINK

EXPERIMENT #9 FIBER OPTIC COMMUNICATIONS LINK EXPERIMENT #9 FIBER OPTIC COMMUNICATIONS LINK INTRODUCTION: Much of daa communicaions is concerned wih sending digial informaion hrough sysems ha normally only pass analog signals. A elephone line is such

More information

BOUNCER CIRCUIT FOR A 120 MW/370 KV SOLID STATE MODULATOR

BOUNCER CIRCUIT FOR A 120 MW/370 KV SOLID STATE MODULATOR BOUNCER CIRCUIT FOR A 120 MW/370 KV SOLID STATE MODULATOR D. Gerber, J. Biela Laboraory for High Power Elecronic Sysems ETH Zurich, Physiksrasse 3, CH-8092 Zurich, Swizerland Email: gerberdo@ehz.ch This

More information

Engines (diesel, HFO ) and gas turbines

Engines (diesel, HFO ) and gas turbines Engines (diesel, HFO ) and gas urbines Energy Efficiency Produce power from your exhaus fumes www.aqylon.com Environmenally friendly s organic working fluids have a very low Global Warming Poenial (320).

More information

Phase-Shifting Control of Double Pulse in Harmonic Elimination Wei Peng1, a*, Junhong Zhang1, Jianxin gao1, b, Guangyi Li1, c

Phase-Shifting Control of Double Pulse in Harmonic Elimination Wei Peng1, a*, Junhong Zhang1, Jianxin gao1, b, Guangyi Li1, c Inernaional Symposium on Mechanical Engineering and Maerial Science (ISMEMS 016 Phase-Shifing Conrol of Double Pulse in Harmonic Eliminaion Wei Peng1, a*, Junhong Zhang1, Jianxin gao1, b, Guangyi i1, c

More information

EE201 Circuit Theory I Fall

EE201 Circuit Theory I Fall EE1 Circui Theory I 17 Fall 1. Basic Conceps Chaper 1 of Nilsson - 3 Hrs. Inroducion, Curren and Volage, Power and Energy. Basic Laws Chaper &3 of Nilsson - 6 Hrs. Volage and Curren Sources, Ohm s Law,

More information

<Diode Modules> RM200CY-24S HIGH POWER SWITCHING USE INSULATED TYPE

<Diode Modules> RM200CY-24S HIGH POWER SWITCHING USE INSULATED TYPE dual swich (Cahode Common) Forward curren...... 2 0 0 A Repeiive peak reverse volage V RRM... 1 2 0 0 V Maximum juncion emperaure T jmax... 1 5 0 C Fla base Type Copper base plae RoHS Direcive

More information

ICAMechS The Navigation Mobile Robot Systems Using Bayesian Approach through the Virtual Projection Method

ICAMechS The Navigation Mobile Robot Systems Using Bayesian Approach through the Virtual Projection Method ICAMechS 2012 Advanced Inelligen Conrol in Roboics and Mecharonics The Navigaion Mobile Robo Sysems Using Bayesian Approach hrough he Virual Projecion Mehod Tokyo, Japan, Sepember 2012 Luige VLADAREANU,

More information

Proceedings of International Conference on Mechanical, Electrical and Medical Intelligent System 2017

Proceedings of International Conference on Mechanical, Electrical and Medical Intelligent System 2017 on Mechanical, Elecrical and Medical Inelligen Sysem 7 Consan On-ime Conrolled Four-phase Buck Converer via Saw-oohwave Circui and is Elemen Sensiiviy Yi Xiong a, Koyo Asaishi b, Nasuko Miki c, Yifei Sun

More information

4.5 Biasing in BJT Amplifier Circuits

4.5 Biasing in BJT Amplifier Circuits 4/5/011 secion 4_5 Biasing in MOS Amplifier Circuis 1/ 4.5 Biasing in BJT Amplifier Circuis eading Assignmen: 8086 Now le s examine how we C bias MOSFETs amplifiers! f we don bias properly, disorion can

More information

TSOP12.. IR Receiver Modules for Remote Control Systems VISHAY. Vishay Semiconductors

TSOP12.. IR Receiver Modules for Remote Control Systems VISHAY. Vishay Semiconductors TSOP1.. IR Receiver Modules for Remoe Conrol Sysems Descripion The TSOP1.. - series are miniaurized receivers for infrared remoe conrol sysems. PIN diode and preamplifier are assembled on lead frame, he

More information

Aleksandrs Andreiciks, Riga Technical University, Ingars Steiks, Riga Technical University, Oskars Krievs, Riga Technical University

Aleksandrs Andreiciks, Riga Technical University, Ingars Steiks, Riga Technical University, Oskars Krievs, Riga Technical University Scienific Journal of Riga Technical Universiy Power and Elecrical Engineering Curren-fed Sep-up DC/DC Converer for Fuel Cell Applicaions wih Acive Overvolage Clamping Aleksandrs Andreiciks, Riga Technical

More information

Primary Side Control SMPS with Integrated MOSFET

Primary Side Control SMPS with Integrated MOSFET General Descripion GG64 is a primary side conrol SMPS wih an inegraed MOSFET. I feaures programmable cable drop compensaion and a peak curren compensaion funcion, PFM echnology, and a CV/CC conrol loop

More information

Laser retro-reflective photoelectric sensor with polarisation filter. Dimensioned drawing

Laser retro-reflective photoelectric sensor with polarisation filter. Dimensioned drawing Specificaions and descripion PRKL 3B Laser rero-reflecive phooelecric sensor wih polarisaion filer Dimensioned drawing en 08-2011/04 50105363 2 khz 0 3m 10-30 V DC Polarized rero-reflecive phooelecric

More information

Optical Short Pulse Generation and Measurement Based on Fiber Polarization Effects

Optical Short Pulse Generation and Measurement Based on Fiber Polarization Effects Opical Shor Pulse Generaion and Measuremen Based on Fiber Polarizaion Effecs Changyuan Yu Deparmen of Elecrical & Compuer Engineering, Naional Universiy of Singapore, Singapore, 117576 A*STAR Insiue for

More information

5 Spatial Relations on Lines

5 Spatial Relations on Lines 5 Spaial Relaions on Lines There are number of useful problems ha can be solved wih he basic consrucion echniques developed hus far. We now look a cerain problems, which involve spaial relaionships beween

More information

A Bidirectional Three-Phase Push-Pull Converter With Dual Asymmetrical PWM Method

A Bidirectional Three-Phase Push-Pull Converter With Dual Asymmetrical PWM Method A Bidirecional Three-Phase Push-Pull Converer Wih Dual Asymmeral PWM Mehod Minho Kwon, Junsung Par, Sewan Choi, IEEE Senior Member Deparmen of Elecral and Informaion Engineering Seoul Naional Universiy

More information

AK8777B. Overview. Features

AK8777B. Overview. Features AK8777B Hall Effec IC for Pulse Encoders Overview The AK8777B is a Hall effec lach which deecs boh verical and horizonal (perpendicular and parallel o he marking side of he package) magneic field a he

More information

Dead Zone Compensation Method of H-Bridge Inverter Series Structure

Dead Zone Compensation Method of H-Bridge Inverter Series Structure nd Inernaional Conference on Elecrical, Auomaion and Mechanical Engineering (EAME 7) Dead Zone Compensaion Mehod of H-Bridge Inverer Series Srucure Wei Li Insiue of Elecrical Engineering and Informaion

More information

Comparative Analysis of the Large and Small Signal Responses of "AC inductor" and "DC inductor" Based Chargers

Comparative Analysis of the Large and Small Signal Responses of AC inductor and DC inductor Based Chargers Comparaive Analysis of he arge and Small Signal Responses of "AC inducor" and "DC inducor" Based Chargers Ilya Zelser, Suden Member, IEEE and Sam Ben-Yaakov, Member, IEEE Absrac Two approaches of operaing

More information

A Coupled Inductor Hybrid Quadratic Boost Inverter for DC Microgrid Application

A Coupled Inductor Hybrid Quadratic Boost Inverter for DC Microgrid Application A Coupled Inducor Hybrid Quadraic Boos Inverer for DC Microgrid Applicaion Anish Ahmad, R. K. Singh, and R. Mahany Deparmen of Elecrical Engineering, Indian Insiue of Technology (Banaras Hindu Universiy),Varanasi,India.

More information

TSOP322.. IR Receiver Modules for Remote Control Systems VISHAY. Vishay Semiconductors

TSOP322.. IR Receiver Modules for Remote Control Systems VISHAY. Vishay Semiconductors TSOP3.. IR Receiver Modules for Remoe Conrol Sysems Descripion The TSOP3.. - series are miniaurized receivers for infrared remoe conrol sysems. PIN diode and preamplifier are assembled on lead frame, he

More information

Power Efficient Battery Charger by Using Constant Current/Constant Voltage Controller

Power Efficient Battery Charger by Using Constant Current/Constant Voltage Controller Circuis and Sysems, 01, 3, 180-186 hp://dx.doi.org/10.436/cs.01.304 Published Online April 01 (hp://www.scirp.org/journal/cs) Power Efficien Baery Charger by Using Consan Curren/Consan olage Conroller

More information

HS0038B5. IR Receiver Modules for Remote Control Systems. Vishay Semiconductors

HS0038B5. IR Receiver Modules for Remote Control Systems. Vishay Semiconductors IR Receiver Modules for Remoe Conrol Sysems Descripion The - series are miniaurized receivers for infrared remoe conrol sysems. PIN diode and preamplifier are assembled on lead frame, he epoxy package

More information

Experiment 6: Transmission Line Pulse Response

Experiment 6: Transmission Line Pulse Response Eperimen 6: Transmission Line Pulse Response Lossless Disribued Neworks When he ime required for a pulse signal o raverse a circui is on he order of he rise or fall ime of he pulse, i is no longer possible

More information

The University of Melbourne Department of Mathematics and Statistics School Mathematics Competition, 2013 JUNIOR DIVISION Time allowed: Two hours

The University of Melbourne Department of Mathematics and Statistics School Mathematics Competition, 2013 JUNIOR DIVISION Time allowed: Two hours The Universiy of Melbourne Deparmen of Mahemaics and Saisics School Mahemaics Compeiion, 203 JUNIOR DIVISION Time allowed: Two hours These quesions are designed o es your abiliy o analyse a problem and

More information

Design Considerations for TI s CDCV857 / CDCV857A / CDCV855 DDR PLL

Design Considerations for TI s CDCV857 / CDCV857A / CDCV855 DDR PLL Applicaion Repor SCAA054A January 2002 Revised November 2005 Dung Nguyen and Kal Musafa Design Consideraions for TI s CDCV857 / CDCV857A / CDCV855 DDR PLL ABSTRACT This applicaion is a general guide for

More information

Linear PFC regulator for LED lighting with the multi-level structure and low voltage MOSFETs.

Linear PFC regulator for LED lighting with the multi-level structure and low voltage MOSFETs. Linear PFC regulaor for lighing wih he muli-level srucure and low volage MOSFETs. Yuichi Noge Nagaoka Universiy of Technology Niigaa, Japan noge@sn.nagaokau.ac.jp Jun-ichi Ioh Nagaoka Universiy of Technology

More information

Photo Modules for PCM Remote Control Systems

Photo Modules for PCM Remote Control Systems Phoo Modules for PCM Remoe Conrol Sysems Available ypes for differen carrier frequencies Type fo Type fo TSOP223 3 khz TSOP2233 33 khz TSOP2236 36 khz TSOP2237 36.7 khz TSOP2238 38 khz TSOP224 4 khz TSOP2256

More information

Photo Modules for PCM Remote Control Systems

Photo Modules for PCM Remote Control Systems Phoo Modules for PCM Remoe Conrol Sysems Descripion The HS38B series are miniaurized receivers for infrared remoe conrol sysems. PIN diode and preamplifier are assembled on lead frame, he epoxy package

More information

Study on the Wide Gap Dielectric Barrier Discharge Device Gaofeng Wang

Study on the Wide Gap Dielectric Barrier Discharge Device Gaofeng Wang Sudy on he Wide Gap Dielecric Barrier Discharge Device Gaofeng Wang School of Informaion Engineering, Zhengzhou Universiy, Zhengzhou 450001, China 932167312@qq.com Keywords: DBD; Wide air gap; Plasma body;

More information

International Journal of Electrical & Computer Sciences IJECS-IJENS Vol:15 No:03 7

International Journal of Electrical & Computer Sciences IJECS-IJENS Vol:15 No:03 7 Inernaional Journal of Elecrical & Compuer Sciences IJECS-IJENS Vol:15 No:03 7 Applying Muliple Paricle Swarm Opimizaion Algorihm o he Opimal Seing of Time Coordinaion Curve of in Disribuion Feeder Auomaed

More information

Laser retro-reflective photoelectric sensor with polarization filter. Dimensioned drawing

Laser retro-reflective photoelectric sensor with polarization filter. Dimensioned drawing Specificaions and descripion PRKL 3B Laser rero-reflecive phooelecric sensor wih polarizaion filer Dimensioned drawing en 09-2012/06 50105363 2 khz 0 3m 10-30 V DC We reserve he righ o make changes DS_PRKL3B622_en_50105363.fm

More information

Technological Capital Management as an Instrument of Industrial Enterprise Innovative Development

Technological Capital Management as an Instrument of Industrial Enterprise Innovative Development Inernaional Conference on Compeiive Manufacuring Technological Capial Managemen as an Insrumen of Indusrial Enerprise Innovaive Developmen S. N. Grigoriev, J. Y. Yeleneva 2, V. N. Andreev 2 Deparmen of

More information

HF Transformer Based Grid-Connected Inverter Topology for Photovoltaic Systems

HF Transformer Based Grid-Connected Inverter Topology for Photovoltaic Systems 1 HF Transformer Based Grid-Conneced Inverer Topology for Phoovolaic Sysems Abhiji Kulkarni and Vinod John Deparmen of Elecrical Engineering, IISc Bangalore, India. (abhijik@ee.iisc.erne.in, vjohn@ee.iisc.erne.in)

More information

Transformer of tgδ on MSP430F1331 single chip microcomputer WANG Han 1 CAI Xinjing 1,XiaoJieping 2,Liu weiqing 2

Transformer of tgδ on MSP430F1331 single chip microcomputer WANG Han 1 CAI Xinjing 1,XiaoJieping 2,Liu weiqing 2 2nd Inernaional Workshop on Maerials Engineering and ompuer Sciences (IWMES 205 Transformer of gδ on MSP430F33 single chip microcompuer WANG Han AI Xinjing,XiaoJieping 2,Liu weiqing 2 School of elecrical

More information

Disribued by: www.jameco.com 1-800-831-4242 The conen and copyrighs of he aached maerial are he propery of is owner. 16K-Bi CMOS PARALLEL E 2 PROM FEATURES Fas Read Access Times: 200 ns Low Power CMOS

More information

Lecture #7: Discrete-time Signals and Sampling

Lecture #7: Discrete-time Signals and Sampling EEL335: Discree-Time Signals and Sysems Lecure #7: Discree-ime Signals and Sampling. Inroducion Lecure #7: Discree-ime Signals and Sampling Unlike coninuous-ime signals, discree-ime signals have defined

More information

M2 3 Introduction to Switching Regulators. 1. What is a switching power supply? 2. What types of switchers are available?

M2 3 Introduction to Switching Regulators. 1. What is a switching power supply? 2. What types of switchers are available? M2 3 Inroducion o Swiching Regulaors Objecive is o answerhe following quesions: 1. Wha is a swiching power supply? 2. Wha ypes of swichers are available? 3. Why is a swicher needed? 4. How does a swicher

More information

A-LEVEL Electronics. ELEC4 Programmable Control Systems Mark scheme June Version: 1.0 Final

A-LEVEL Electronics. ELEC4 Programmable Control Systems Mark scheme June Version: 1.0 Final A-LEVEL Elecronics ELEC4 Programmable Conrol Sysems scheme 243 June 26 Version:. Final schemes are prepared by he Lead Assessmen Wrier and considered, ogeher wih he relevan quesions, by a panel of subjec

More information

PRM and VTM Parallel Array Operation

PRM and VTM Parallel Array Operation APPLICATION NOTE AN:002 M and V Parallel Array Operaion Joe Aguilar VI Chip Applicaions Engineering Conens Page Inroducion 1 High-Level Guidelines 1 Sizing he Resisor 4 Arrays of Six or More Ms 5 Sysem

More information

Solid-state Timer H3CT

Solid-state Timer H3CT Solid-sae Timer H3CT DIN 48 x 48-mm Sandard Size Analog Timer Wide ime range (for 4 series of models); 0.1 s o 30 hrs. Wih H3CT-8H models, he oupu ype can be swiched beween ime limi DPDT and ime limi SPDT

More information

Analog Circuits EC / EE / IN. For

Analog Circuits EC / EE / IN.   For Analog Circuis For EC / EE / IN By www.hegaeacademy.com Syllabus Syllabus for Analog Circuis Small Signal Equivalen Circuis of Diodes, BJTs, MOSFETs and Analog CMOS. Simple Diode Circuis, Clipping, Clamping,

More information

Communication Systems. Department of Electronics and Electrical Engineering

Communication Systems. Department of Electronics and Electrical Engineering COMM 704: Communicaion Lecure : Analog Mulipliers Dr Mohamed Abd El Ghany Dr. Mohamed Abd El Ghany, Mohamed.abdel-ghany@guc.edu.eg nroducion Nonlinear operaions on coninuous-valued analog signals are ofen

More information

GG6005. General Description. Features. Applications DIP-8A Primary Side Control SMPS with Integrated MOSFET

GG6005. General Description. Features. Applications DIP-8A Primary Side Control SMPS with Integrated MOSFET General Descripion GG65 is a primary side conrol PSR SMPS wih an inegraed MOSFET. I feaures a programmable cable drop compensaion funcion, PFM echnology, and a CV/CC conrol loop wih high reliabiliy and

More information

Retro-reflective photoelectric sensors with polarization filter. Dimensioned drawing

Retro-reflective photoelectric sensors with polarization filter. Dimensioned drawing Rero-reflecive phooelecric sensors wih polarizaion filer Dimensioned drawing en 10-2011/04 50105364 1 khz 0 5m We reserve he righ o make changes DS_PRK3B_Sandard_EL_en.fm 10-30 V DC A 2 LS Polarized rero-reflecive

More information

Polytech Montpellier MEA M2 EEA Systèmes Microélectroniques. Advanced Analog IC Design

Polytech Montpellier MEA M2 EEA Systèmes Microélectroniques. Advanced Analog IC Design Polyech Monpellier MEA M EEA Sysèmes Microélecroniques Adanced Analog IC Design Chaper I Inroducion Pascal Noue / 013-014 noue@lirmm.fr hp://www.lirmm.fr/~noue/homepage/lecure_ressources.hml Ouline of

More information

Ethernet system for length measurement, 24-bit 16/8/4 inductive transducers, LVDT, Half-Bridge, Mahr

Ethernet system for length measurement, 24-bit 16/8/4 inductive transducers, LVDT, Half-Bridge, Mahr CH0 CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH CH9 CH10 CH11 CH12 CH13 CH14 CH15 Couner 0 Couner 1 Couner 2 Couner 3 sysem for lengh measuremen, 24-bi //4 inducive ransducers,, Half-Bridge, Mahr New! 32 digial I/O

More information

IR Receiver for High Data Rate PCM at 455 khz Description

IR Receiver for High Data Rate PCM at 455 khz Description IR Receiver for High Daa Rae PCM a 455 khz Descripion The is a miniaurized receiver for infrared remoe conrol and IR daa ransmission. PIN diode and preamplifier are assembled on lead frame, he epoxy package

More information