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DC Choppers - ::University of Jordan - A Faculty of ...

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DC Choppers - ::University of Jordan - A Faculty of ...

DC Choppers * Prof. T.K. Anantha Kumar, E&E Dept., MSRIT Introduction Chopper is a static device. A variable dc voltage is obtained from a constant dc voltage source.

http://fetweb.ju.edu.jo/staff/EE/khedher/DC-Choppers.ppt

Date added: November 13, 2011 - Views: 286

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DC-DC Converters (choppers) - Australian Defence Force Academy

DC-DC Converters (choppers) The objective is to convert a fixed DC voltage to a variable DC voltage It is possible to step up and step down voltage.

http://seit.unsw.adfa.edu.au/staff/sites/valu/TEACHING/drives/DC_DC_converters.ppt

Date added: March 22, 2012 - Views: 232

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Slide 1

INTRODUCTION DC-DC converter (chopper) is used to convert constant DC voltage into variable DC voltage. In DC-DC conversion circuits, thyristors are used as switching elements. ... * PRINCIPLES OF BASIC DC CHOPPERS Switch is turned on and off periodically.

http://arslanranjha.weebly.com/uploads/4/8/9/3/4893701/chp9.ppt

Date added: May 20, 2012 - Views: 49

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ECE 442 Power Electronics - University of Massachusetts Dartmouth

Power Electronics Text: Power Electronics: Circuits, Devices, and Applications Third Edition by Muhammed H. Rashid Pearson Prentice-Hall ... (AC Voltage Controllers) DC-DC Converters (DC Choppers) DC-AC Converters (Inverters) ...

http://www.faculty.umassd.edu/xtras/catls/resources/binarydoc/3738.ppt

Date added: January 4, 2013 - Views: 29

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DC to DC CONVERSION (CHOPPER) - Universiti Teknologi Malaysia

DC to DC CONVERTER (CHOPPER) General Buck converter Boost converter Buck-Boost converter Switched-mode power supply Bridge converter Notes on electromagnetic compatibility (EMC) and solutions.

http://encon.fke.utm.my/courses/see5433/Chopper-2003.PPT

Date added: October 8, 2011 - Views: 513

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PowerPoint Presentation

Mostly DC-DC choppers converters are used. For the field circuit, the balance of power is: The input power: The efficiency: Quasistatic Modeling of Electric Motors AC Motor Compose of three-phase windings. The ...

http://www8.tfe.umu.se/forskning/Control_Systems/Courses/vehicle_propulsion_systems/4_electric_and_hybrid-electric_propulsion_systems/4_electric_and_hybrid-electric_propulsion_systems.ppt

Date added: May 3, 2013 - Views: 57

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Slide 1 - FET - ::University of Jordan - A Faculty of ...

DC Choppers * Prof. T.K. Anantha Kumar, E&E Dept., MSRIT Introduction Chopper is a static device. A variable dc voltage is obtained from a constant dc voltage source.

http://fetweb.ju.edu.jo/staff/EE/khedher/lecture12.ppt

Date added: January 31, 2012 - Views: 89

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SPEED CONTROL OF DC MOTOR USING PULSE WIDTH MODULATION

TRACTION MOTOR : CONTROL AND APPLICATIONS Content : Introduction Requirements of a traction system Control of DC motors Electronic Speed Control Methods for DC Motors Pulse Width Modulation Braking operation in DC motors Conclusion References INTRODUCTION Traction motor refers to an electric ...

http://123seminarsonly.com/Seminar-Reports/2013-02/89795382-Electric-Traction-Railways.ppt

Date added: January 2, 2014 - Views: 53

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Single-phase half-bridge inverter - Welcome - Faculty Pages ...

Single-phase half-bridge inverter Operational Details Consists of 2 choppers, 3-wire DC source Transistors switched on and off alternately Need to isolate the gate signal for Q1 (upper device) Each provides opposite polarity of Vs/2 across the load Q1 on, Q2 off, vo = Vs/2 Q1 off, Q2 on, vo ...

http://www.faculty.umassd.edu/xtras/catls/resources/binarydoc/1291.ppt

Date added: October 21, 2011 - Views: 132

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Motor Drive Lecture 1#C - Ohio State University

Motor Drive Prof. Ali Keyhani Modern Variable Speed System A modern variable speed system has four components: 1. Electric Motor 2. Power Converter - Rectifiers - Choppers - Inverters - Cycloconverters Modern Variable Speed System (Contd’) 3.

http://www2.ece.ohio-state.edu/ems/MotorDrive/Motor_Drive.ppt

Date added: September 29, 2011 - Views: 381

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RADIATION PROTECTION IN DIAGNOSTIC RADIOLOGY

... HF generators (use of DC choppers to convert 50Hz mains into voltages with frequencies in the kHz range) “Inverter technology” 6: ...

http://occonline.occ.cccd.edu/online/lsachs/x%20ray%20tube.ppt

Date added: November 15, 2012 - Views: 15

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The D.C. Scout Battery Distribution System Ground Locator

Presented by: H.J. Arnett Industries, LLC D.C. Scout Purpose The D.C. Scout is used for locating resistive or non-resistive current paths from DC Battery Distribution System to building ground without de-energizing components or loads in the system.

http://hjarnett.com/pdf/DC-scout-tutorial.ppt

Date added: July 26, 2013 - Views: 12

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Fundamentals of Linear Electronics Integrated & Discrete

E-MOSFET Switches E-MOSFETs can also switch analog signals E-MOSFET Switches Choppers convert DC or low-frequency AC into higher-frequency AC suitable ... Times New Roman Times Arial Symbol Cox1.ppt CHAPTER 8 OBJECTIVES Introduction D-MOSFETs D-MOSFETs D-MOSFETs D-MOSFET ...

http://www.technology.heartland.edu/faculty/chrism/Fall%202003/ELTC%20207/powerpoints/COX%20CHAP%208.ppt

Date added: June 5, 2012 - Views: 23

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Diode Circuits or Uncontrolled Rectifier

Switch-Mode Power Supply DC-DC converters choppers Step Down DC-DC Converter (Buck Converter) Discontinuous Conduction Mode with Constant Vd Discontinuous Conduction Mode with Constant Vd (continue) Then Discontinuous Conduction Mode with Constant Output Voltage Output Voltage Ripples In ...

http://faculty.ksu.edu.sa/eltamaly/Documents/Courses/EE%20435/EE_435_4.ppt

Date added: May 24, 2013 - Views: 4

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PowerPoint Presentation

Changes in Automatic Fare Collection ... operators Currently focused to meet regional mobility Brief history of fare control in New York City Tickets & ticket choppers operated by guards at each station. ... advantages and limitations SmarTrip in Washington DC CTA: ...

http://www.sci.brooklyn.cuny.edu/~kopec/CIS_763/FareCardByKopec.ppt

Date added: November 5, 2011 - Views: 62

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Download - Bonitron Solutions for AC Drives

PowerFlex® 750 Series. High Horsepower. Low Horsepower Bonitron Choppers and Resistors can be used with any drive with DC bus connections. Frame sizes 8 and above do not have a 7th IGBT option.

http://www.bonitron.com/Downloads/PowerPoints/Bonitron-AB_Braking.pptx

Date added: November 1, 2011 - Views: 22

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RADIATION PROTECTION IN DIAGNOSTIC RADIOLOGY

... HF generators (use of DC choppers to convert 50Hz mains into voltages with frequencies in the kHz range) “Inverter technology” 6: ...

http://rpop.iaea.org/RPOP/RPoP/Content/Documents/TrainingRadiology/Lectures/RPDIR-L06_Xray_production_WEB.ppt

Date added: November 24, 2011 - Views: 61

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Chapter 5 Signals and Noise - Arkansas Tech University

Chapter 5 Signals and Noise Signal carries information about the analyte that is of interest to us. Noise is made up of extraneous information that is unwanted because it degrades the accuracy and precision of an analysis

http://faculty.atu.edu/ABhuiyan/Course/Chem%204414/Chapter%205.ppt

Date added: January 27, 2012 - Views: 34

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Microelectromechanical Devices - Villanova University

... Electric machines - ac or dc (ii) Power converter - rectifiers,choppers, inverters, and cycloconverters ... Power converter - rectifiers,choppers, inverters, and cycloconverters (iii) Controllers -matching the motor and power converter to meet the load requirements ...

http://www.ece.villanova.edu/~singh/ece8830/88301a.ppt

Date added: March 29, 2012 - Views: 51

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No Slide Title

DC-DC Converters (DC choppers) 4. DC-AC Converters (Inverters) ตัวอย่างของการใช้งาน Power Electronics ได้แก่ Air Conditioning, Alarms, Battery charger, Clothes dryer, Conveyor, Electric Dryers, ...

http://www.ee.mut.ac.th/course/eeet0210/ppt/15.ppt

Date added: November 20, 2011 - Views: 24

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Slide 1

The converter used are controlled rectifiers or choppers: Controlled Rectifiers If ... Power Flow and Losses in DC Motors – T characteristics Example 11 Cont. Example Separately Excited DC Motor – Torque speed characteristic DC Speed Control Slide 12 Slide 13 Armature Resistance ...

http://encon.fke.utm.my/courses/see3433_spaceKL/lecture/Chapter%203-3.ppt

Date added: May 19, 2013 - Views: 7

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幻灯片 1 - dianyuan.com

... EMI rules II Use snubber capacitors to avoid voltage drop in the DC-Bus voltage. ... 1/2 number of cell as by Robicon Multilevel switch Halfbridges 2 x Choppers = Multi-Level-Modul - Terminal GB module ...

http://bbs.dianyuan.com/bbs/u/25/1105588407.ppt

Date added: December 23, 2012 - Views: 42

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PowerPoint Presentation

Number of choppers. Chopper length. Full rise/fall time. Gap. Total deflection voltage +/- 2350. Post chopper off/on beam-current ratio. ... DC?? Scale by pulse rate from SNS ?? Expected output rms norm H & V emit. Estimated output rms norm H & V emit.

http://www.fnal.gov/directorate/DirReviews/DirRvw_Proton%20Driver%20Presentations/PD_DIR_REV_Apollinari-v2%5b2%5d.ppt

Date added: December 28, 2013 - Views: 14

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PowerPoint Presentation

However some degree of self-sufficiency for basic foodstuffs remains a major objective for DC. Availability of foreign exchange is also a constraint on the import capacity of some DC.

http://www.ictsd.org/downloads/2008/08/c_bellmann.ppt

Date added: June 5, 2014 - Views: 22

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Presentación de PowerPoint - Centro de Recursos educativos ...

Motor de Corriente Directa (DC): Variadores monofásicos/ trifásicos CA/CC Motor de Corriente Directa (DC): Troceadores o Choppers CC/CC Motor de Corriente Directa (DC): Troceadores o Choppers CC/CC Motor de Corriente Directa (DC): Motor de Corriente Directa ...

http://llcm2.files.wordpress.com/2010/03/teoria-motores1.ppt

Date added: July 18, 2012 - Views: 35

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Principles of Instrumental Analysis

FIGURE 5-1 Effect of noise on a current measurement: (a) experimental strip-chart recording of a 0.9 ×10-15 A direct current. ... FIGURE 5-6 Amplification of a modulated dc signal. FIGURE 5-7 Mechanical choppers for modulating a light beam: (a) ...

http://www.e-lcd.com.tw/儀器分析課本Ⅰ/Ch05.ppt

Date added: July 14, 2013 - Views: 9

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PowerPoint Presentation

United Nations Conference on Trade and Development Workshop on WTO Accession UNDP/UNCTAD Goods Commitments Belarus, October 2008 Ralf Peters Trade Negotiations and Commercial Diplomacy Branch, DITC

http://trade.ecoaccord.org/s2008/5.ppt

Date added: August 1, 2013 - Views: 102

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Industrial Motor Drives And Control - most - Home

Industrial Motor Drives And Control ... of DC series motors 7.9 Advantages of AC motor control over DC ... -commutated bridge inverters 6.7 Functional circuit blocks of a line-commutated converters 6.8 Dual converters 6.9 Choppers 6.10 Cycloconverter 7.1 Introduction 7.2 AC Voltage ...

http://www.most.gov.mm/techuni/media/EP5028_IMDC.ppt

Date added: October 11, 2011 - Views: 61

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Slide 1

and http://learnelectronics.narod.ru/ (free ... ac/ac and dc/dc converters Power electronic components Gating of power switches Phase modulation ... Changers DC/DC converters - Choppers ~ = Us Ud = ~ Ud Us ~ ~ Us sup Us load = = Ud sup Ud load M M M M Advanced course of Power ...

http://learnelectronics.narod.ru/PE2LectPres.ppt

Date added: July 10, 2013 - Views: 8

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No Slide Title

The sensor contains two identical thermocouples on one chip, electrically connected as in the figure. For DC, the thermocouples are in series, ... First, voltages on the order of 100 nV are to be measured -- so choppers, AC amplifiers, and synchronous detectors are needed.

http://www.die.uniroma1.it/personale/pisa/CIRCUITI_MICROONDE/VARIE/HP-SEMINARS/power-meas.ppt

Date added: September 17, 2013 - Views: 9

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The DynaMotor Brushless Repulsion Motor - DynaMotors

The DynaMotorTM Electronic Brushless Repulsion Motor ... Dc motors are quite efficient and have wide speed ranges but still require an external controller and the dc motor itself is more costly to build than ... no in-line choppers or thyristor power converters used. Blowers, pumps ...

http://www.dynamotors.com/pubs/smma_2003.ppt

Date added: May 14, 2012 - Views: 37

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L3 国际合作实验 - University of Michigan

... 3-4 mW, 665.1-675.2 nm. Retroreflector: Edmund, D=2”, angle tolerance: 3 arc seconds. Photodiode: Thorlabs PDA55, DC-10MHz, Amplified Si Detector, 5 Gain Settings. Thorlabs Fabry ... Two Lasers Two Choppers A dual-laser FSI intended to reduce the drift errors is under study ...

http://gallatin.physics.lsa.umich.edu/~hyang/talks/fsi-doe-july-19-2004.ppt

Date added: May 7, 2013 - Views: 17

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Title

... wide wavelength range Optimized for high resolution The OL Series 750 Monochromators Range of plug-in input accessories Choppers ... DC, AC, pulsed or modulated sources Sphere systems: from 1” to 76” diameter as standard NIST-traceable calibration sources, ...

http://www.olinet.com/content/library/1224786659P17_OL_750-SPECULAR-REFLECTANCE-SYSTEM-PRESENTATION.ppt

Date added: September 7, 2012 - Views: 15

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Microprocessadores I

Choppers DC (DC para DC) – converte uma tensão DC fixa em tensões DC variáveis. 4. Inversores (DC para AC) – converte uma tensão DC fixa em uma tensão monofásica ou trifásica AC, fixa ou variável, e com frequências também fixas ou variáveis. 5. ...

http://professorcesarcosta.com.br/upload/imagens_upload/1.a%20Aula_PAE_04_Introdu%c3%a7%c3%a3o.ppt

Date added: January 11, 2014 - Views: 3

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Employment of Interns and Seasonal Workers: Avoiding Wage ...

... DC LONDON DUBLIN www.brownrudnick.com an international law firm 8163128 * * Agenda What minimum wage and ... oiling or repairing certain power-driven food slicers and grinders, food choppers and cutters, and bakery-type mixers; Work in freezers and meat coolers; and Loading and ...

http://assets.complianceexpert.com/fileserver/file/1253/filename/Employment%20of%20Interns%20and%20Seasonal%20Workers.ppt

Date added: July 25, 2014 - Views: 1

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Title

... wide wavelength range Optimised for high resolution The OL Series 750 Monochromators Range of Plug-in input accessories Choppers ... DC, AC, pulsed or modulated sources Sphere systems: from 1” to 76” diameter as standard NIST-traceable calibration sources, materials & detectors ...

http://www.olinet.com/content/library/1224785887P08_OL_750-DSR-SYSTEM-PRESENTATION_A.ppt

Date added: August 29, 2011 - Views: 15

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Snímek 1 - Masaryk University

Human knapping produces an angle of less than 90° Tools are mostly classified as choppers (Early Paleolithic technology) ... DC. Irwin, H. T. 1971 Developments in early man studies in Western North America, 1960-1970. Arctic Anthropology 8:42-67.

http://www.phil.muni.cz/~vndrzl/indians/Archaeology/aj27060_week5.ppt

Date added: May 10, 2014 - Views: 4

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Entropy of Search Logs - How hard is search? With ...

dc/dc converter design software. dci clinics nv. dda richmond bc. ddn. deacon trough levels. dead beat fathers of mt. dead beaver. dealer leads. death of an infant. debbi, causeway bay hongkong. debbie mathis realty. debbie o'keefe austin. decatur, il. decca records.

http://sifaka.cs.uiuc.edu/~qmei2/pub/wsdm08-entropy.ppt

Date added: July 7, 2012 - Views: 673

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ABB Industrial drives, ACS880 drive series

Title: ABB Industrial drives, ACS880 drive series Author: Joe Chen Last modified by: TWJOCHE2 Created Date: 1/4/2011 6:44:02 AM Document presentation format

http://www02.abb.com/global/seitp/seitp202.nsf/c71c66c1f02e6575c125711f004660e6/c6ac1f286b37afd848257a9e00331f03/$FILE/ACS880_Joe+Chen.ppt

Date added: November 30, 2012 - Views: 47

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MAQUINAS DE CC - JORGE COSCO GRIMANEY | Temas de clases

Motor de Corriente Directa (DC): CIRCUITO EQUIVALENTE EN DERIVACIÓN VT = EA + IARA VT = Kφώ + IARA Un motor en derivación ... IF IF = VT/RF PROBLEMA Variadores monofásicos/ trifásicos CA/CC Aplicaciones Troceadores o Choppers CC/CC Aplicaciones Troceadores o Choppers CC/CC ...

http://coscomantauni.files.wordpress.com/2011/08/maquinas-de-cc.ppt

Date added: May 8, 2013 - Views: 10

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Contextual Text Mining through Probabilistic Theme Analysis

O.C.C. Orange County Choppers Official Site. OBDII automotive scan tool. OC Yellowbook. OF-156. ORMOND MEMORIAL ORMOND BEACH FL. Oakland Cal Ripkin Baseball. ... washington dc. st. louis post dispatch. showtime. liberty travel. red lobster. tribune review. acs. krispy kreme. msi. papa johns ...

http://www-personal.umich.edu/~qmei/pub/CTM-MSR.ppt

Date added: December 22, 2012 - Views: 5771

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... Return Doc - EUROPA - European Commission - <wcm:content ...

DC. EFTA. LDC countries. MED. MERCOSUR. NAFTA. nonACP-ldc. OCT. PALOP. PECO. SAARC. SACU. UDEAC. UEMOA. Zone Franc. Zone GSP. Sum of 2001. Grand Total (All) Region. Analyse des importations par region. commerce de 2001. Ventilation par degré de transformation. non ACP. LDC. Afrique. A C P.

http://ec.europa.eu/regional_policy/sources/docconf/epa/doc/peche.ppt

Date added: October 29, 2012 - Views: 154

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The Conceptual Design of the BEPCII control System

... B PS independent, Q/S PS+ DC PS 1 DC power to 10 choppers,for example :5 OQ and 5 IQ Different PSC number in each VME crate: PVs Num. Different ,Different CPU load ... Every Ramping program write setpoint to RTDB step by step initial and final current first given The number of steps ...

http://www.ihep.ac.cn/Reports/IMAC2007/wangchh.ppt

Date added: May 3, 2013 - Views: 13

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Slide 1

http://www.hgtv.com/hgtv/dc_floral_arrangements/article/0,1793,HGTV_3418_1382927,00.html. ... http://gallery.bcentral.com/GID5110980DD432791-Orange-County-Choppers.aspx. http://www.neon-nites.com/neon_signs.html. http://www.mysticunicorn.com/NFL_Signs.html.

http://people.csail.mit.edu/teevan/work/publications/talks/sigirdc05.ppt

Date added: October 30, 2011 - Views: 113

ppt
Slide 1

SCR yang dioperasikan dari sumber DC Skema rangkaian penghubungan SCR yang dioperasikan dari sumber DC diperlihatkan pada Gambar 3. ... (cycloconverters) 3. dc-ac converters (inverters) 4. dc-dc converters (choppers, buck and boost converters) Title: Slide 1 Author: akt 4.1 PHK-I Last modified by:

http://wahyukr.staff.gunadarma.ac.id/Downloads/files/36834/2+operasi+SCR.ppt

Date added: March 12, 2014 - Views: 5

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Slide 1

... เต็มใจ และ เต็มที่ ไฟ Input ที่รับได้ Choke Brake Choppers Overload ability 380 – 480 V 208 – 240 V DC choke Built in as standard up to 23A 150% 1min/10min (high) 110% 1min/10min (low) Brand A 380 – 480 V DC choke Integrated ...

http://www.bkkonline.com/seminar%20siamconnect/22-7-54/payback2time.ppt

Date added: May 8, 2013 - Views: 11

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Tema 1 Accionamientos Eléctricos - OCW - UC3M

para motores dc INDICE DEL TEMA 1. Introducción. Dispositivos electrónicos ... Convertidores electrónicos cc/cc Ventajas y desventajas de los choppers * 3. Convertidores electrónicos cc/cc Tipos de choppers y cuadrantes de funcionamiento . Title: Tema 1 Accionamientos Eléctricos Author ...

http://ocw.uc3m.es/ingenieria-electrica/accionamientos-electricos/material-de-clase-1/Tema2AccionamientosCCOCW.ppt

Date added: December 20, 2011 - Views: 24

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Presentazione di PowerPoint - MotoClub RHO

... Via Matteotti Moto Choppers (North-west Choppers) Via Madonna e Via Matteotti Auto e moto d’epoca Via Madonna (portici ... ROYAL CUBA SABRINA KABUA RIFF RAFF (AC DC tribute - Rock)* RAY ACCARDI BAND (Jimi Hendrix tribute - Rock) MR. SATURDAY NIGHT SPECIAL (Lynyrd Skynyrd ...

http://www.motoclubrho.com/Documenti/RHOALIVE2008.ppt

Date added: May 8, 2013 - Views: 13