DE69410476T2 - Pulsbreitenmodulierter motorregler - Google Patents

Pulsbreitenmodulierter motorregler

Info

Publication number
DE69410476T2
DE69410476T2 DE69410476T DE69410476T DE69410476T2 DE 69410476 T2 DE69410476 T2 DE 69410476T2 DE 69410476 T DE69410476 T DE 69410476T DE 69410476 T DE69410476 T DE 69410476T DE 69410476 T2 DE69410476 T2 DE 69410476T2
Authority
DE
Germany
Prior art keywords
pulse width
width modulated
motor regulator
modulated motor
regulator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69410476T
Other languages
English (en)
Other versions
DE69410476D1 (de
Inventor
William Harris
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Inc
Original Assignee
Honeywell Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honeywell Inc filed Critical Honeywell Inc
Publication of DE69410476D1 publication Critical patent/DE69410476D1/de
Application granted granted Critical
Publication of DE69410476T2 publication Critical patent/DE69410476T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08Arrangements for controlling the speed or torque of a single motor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/08Reluctance motors
DE69410476T 1993-09-16 1994-09-16 Pulsbreitenmodulierter motorregler Expired - Lifetime DE69410476T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/122,872 US5489831A (en) 1993-09-16 1993-09-16 Pulse width modulating motor controller
PCT/US1994/010463 WO1995008214A1 (en) 1993-09-16 1994-09-16 Pulse width modulating motor controller

Publications (2)

Publication Number Publication Date
DE69410476D1 DE69410476D1 (de) 1998-06-25
DE69410476T2 true DE69410476T2 (de) 1998-12-10

Family

ID=22405332

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69410476T Expired - Lifetime DE69410476T2 (de) 1993-09-16 1994-09-16 Pulsbreitenmodulierter motorregler

Country Status (7)

Country Link
US (1) US5489831A (de)
EP (1) EP0719473B1 (de)
JP (1) JP3432226B2 (de)
CA (1) CA2171107C (de)
DE (1) DE69410476T2 (de)
TW (1) TW301819B (de)
WO (1) WO1995008214A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19928357A1 (de) * 1999-06-21 2001-01-04 Sig Positec Bergerlahr Gmbh & Verfahren zum Betreiben einer Synchronmaschine sowie elektrischer Antrieb

Families Citing this family (107)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9311176D0 (en) * 1993-05-29 1993-07-14 Univ Warwick Electric motor drive
JPH09121590A (ja) * 1995-09-14 1997-05-06 Copeland Corp 逆転制動機構を備えた回転式圧縮機
GB2305518B (en) * 1995-09-26 1999-11-03 Custom Dev Ltd Electronic actuator position control
US5861727A (en) * 1996-04-17 1999-01-19 Dana Corporation System for controlling operation of a switched reluctance motor between multi-phase operating mode and a reduced phase operating mode
DE19781648T1 (de) * 1996-03-15 1999-04-01 Dana Corp System zum Steuern des Betriebs eines Motors mit geschalteter Reluktanz zwischen einer Mehrphasen-Betriebsart und einer Betriebsart reduzierter Phase
US7254518B2 (en) * 1996-03-28 2007-08-07 Rosemount Inc. Pressure transmitter with diagnostics
US6017143A (en) * 1996-03-28 2000-01-25 Rosemount Inc. Device in a process system for detecting events
US6654697B1 (en) 1996-03-28 2003-11-25 Rosemount Inc. Flow measurement with diagnostics
US7630861B2 (en) * 1996-03-28 2009-12-08 Rosemount Inc. Dedicated process diagnostic device
US7949495B2 (en) * 1996-03-28 2011-05-24 Rosemount, Inc. Process variable transmitter with diagnostics
US8290721B2 (en) * 1996-03-28 2012-10-16 Rosemount Inc. Flow measurement diagnostics
US6539267B1 (en) 1996-03-28 2003-03-25 Rosemount Inc. Device in a process system for determining statistical parameter
US5821715A (en) * 1996-07-26 1998-10-13 Western Digital Corporation Pulsed alignment commutation state for sensorless motor start
US6601005B1 (en) 1996-11-07 2003-07-29 Rosemount Inc. Process device diagnostics using process variable sensor signal
US6519546B1 (en) 1996-11-07 2003-02-11 Rosemount Inc. Auto correcting temperature transmitter with resistance based sensor
US6434504B1 (en) 1996-11-07 2002-08-13 Rosemount Inc. Resistance based process control device diagnostics
US6449574B1 (en) 1996-11-07 2002-09-10 Micro Motion, Inc. Resistance based process control device diagnostics
US5956663A (en) * 1996-11-07 1999-09-21 Rosemount, Inc. Signal processing technique which separates signal components in a sensor for sensor diagnostics
US5828567A (en) * 1996-11-07 1998-10-27 Rosemount Inc. Diagnostics for resistance based transmitter
US6754601B1 (en) 1996-11-07 2004-06-22 Rosemount Inc. Diagnostics for resistive elements of process devices
GB9623865D0 (en) * 1996-11-15 1997-01-08 Switched Reluctance Drives Ltd An electric machine
EP0948759B1 (de) * 1996-12-31 2002-08-07 Rosemount Inc. Vorrichtung zur überprüfung eines von einer anlage kommenden steuersignals in einer prozesssteuerung
JP3425369B2 (ja) * 1997-09-24 2003-07-14 東芝テック株式会社 3相モータ
DE69818494T2 (de) 1997-10-13 2004-07-01 Rosemount Inc., Eden Prairie Übertragungsmethode für Feldvorrichtungen in industriellen Prozessen
FR2778798B1 (fr) * 1998-05-15 2000-07-28 Moulinex Sa Procede pour commander un moteur electrique a commutation electronique, et circuit de commande pour sa mise en oeuvre
US6198265B1 (en) 1998-06-19 2001-03-06 Unisem, Inc. Fixed frequency switching regulator with improved dynamic response
US6208216B1 (en) * 1998-09-28 2001-03-27 Mikko J. Nasila Phase-locked-loop pulse-width modulation system
US6611775B1 (en) 1998-12-10 2003-08-26 Rosemount Inc. Electrode leakage diagnostics in a magnetic flow meter
US6615149B1 (en) 1998-12-10 2003-09-02 Rosemount Inc. Spectral diagnostics in a magnetic flow meter
US7206646B2 (en) * 1999-02-22 2007-04-17 Fisher-Rosemount Systems, Inc. Method and apparatus for performing a function in a plant using process performance monitoring with process equipment monitoring and control
US8044793B2 (en) * 2001-03-01 2011-10-25 Fisher-Rosemount Systems, Inc. Integrated device alerts in a process control system
US6633782B1 (en) 1999-02-22 2003-10-14 Fisher-Rosemount Systems, Inc. Diagnostic expert in a process control system
US7562135B2 (en) * 2000-05-23 2009-07-14 Fisher-Rosemount Systems, Inc. Enhanced fieldbus device alerts in a process control system
US6298454B1 (en) 1999-02-22 2001-10-02 Fisher-Rosemount Systems, Inc. Diagnostics in a process control system
US6356191B1 (en) 1999-06-17 2002-03-12 Rosemount Inc. Error compensation for a process fluid temperature transmitter
US7010459B2 (en) * 1999-06-25 2006-03-07 Rosemount Inc. Process device diagnostics using process variable sensor signal
EP1247268B2 (de) 1999-07-01 2009-08-05 Rosemount Inc. Zweidraht-temperaturübertrager mit selbstprüfung und niedriger leistung
US6505517B1 (en) 1999-07-23 2003-01-14 Rosemount Inc. High accuracy signal processing for magnetic flowmeter
US6256185B1 (en) 1999-07-30 2001-07-03 Trombetta, Llc Low voltage direct control universal pulse width modulation module
US6701274B1 (en) 1999-08-27 2004-03-02 Rosemount Inc. Prediction of error magnitude in a pressure transmitter
US6556145B1 (en) 1999-09-24 2003-04-29 Rosemount Inc. Two-wire fluid temperature transmitter with thermocouple diagnostics
DE19955247A1 (de) * 1999-11-17 2001-05-31 Bosch Gmbh Robert Verfahren zum Anfahren eines sensor- und bürstenlosen Gleichstrommotors
US6671459B1 (en) * 2000-06-30 2003-12-30 General Electric Company DC motor control method and apparatus
US6735484B1 (en) 2000-09-20 2004-05-11 Fargo Electronics, Inc. Printer with a process diagnostics system for detecting events
JP4160399B2 (ja) * 2001-03-01 2008-10-01 フィッシャー−ローズマウント システムズ, インコーポレイテッド プロセスプラント内の指標の作成と表示
US7720727B2 (en) * 2001-03-01 2010-05-18 Fisher-Rosemount Systems, Inc. Economic calculations in process control system
CN1324420C (zh) * 2001-03-01 2007-07-04 费舍-柔斯芒特系统股份有限公司 处理工厂内的数据共享
US8073967B2 (en) 2002-04-15 2011-12-06 Fisher-Rosemount Systems, Inc. Web services-based communications for use with process control systems
US6629059B2 (en) 2001-05-14 2003-09-30 Fisher-Rosemount Systems, Inc. Hand held diagnostic and communication device with automatic bus detection
US20020191102A1 (en) * 2001-05-31 2002-12-19 Casio Computer Co., Ltd. Light emitting device, camera with light emitting device, and image pickup method
US6740163B1 (en) * 2001-06-15 2004-05-25 Seagate Technology Llc Photoresist recirculation and viscosity control for dip coating applications
US6772036B2 (en) 2001-08-30 2004-08-03 Fisher-Rosemount Systems, Inc. Control system using process model
KR100439199B1 (ko) * 2001-11-29 2004-07-07 (주)지엔더블유테크놀러지 병렬결선 구조를 가진 무브러시 직류 전동기 및 그 제어회로
JP3932408B2 (ja) * 2002-02-01 2007-06-20 ミネベア株式会社 ブラシレス直流1相モータのプリドライブ回路
US7084597B2 (en) * 2002-06-03 2006-08-01 Denso Corporation Motor control apparatus
US7161314B2 (en) * 2002-10-07 2007-01-09 Denso Corporation Motor control apparatus having current supply phase correction
US6836087B2 (en) * 2003-01-29 2004-12-28 Wavecrest Laboratories, Llc Multiphase motor voltage control for phase windings of different wire gauges and winding turns
JP2004328991A (ja) * 2003-04-09 2004-11-18 Nissan Motor Co Ltd 車両の左右輪駆動装置
US7290450B2 (en) * 2003-07-18 2007-11-06 Rosemount Inc. Process diagnostics
US7018800B2 (en) * 2003-08-07 2006-03-28 Rosemount Inc. Process device with quiescent current diagnostics
US7627441B2 (en) * 2003-09-30 2009-12-01 Rosemount Inc. Process device with vibration based diagnostics
US6954044B2 (en) * 2003-12-11 2005-10-11 Honeywell International Inc. Electric motor with speed control
US7112907B2 (en) 2003-12-12 2006-09-26 Siemens Vdo Automotive Inc. Flux modifier for a permanent magnet brush-type motor using wound field coils combined with permanent magnets
US7523667B2 (en) * 2003-12-23 2009-04-28 Rosemount Inc. Diagnostics of impulse piping in an industrial process
JP4583111B2 (ja) 2004-08-31 2010-11-17 ルネサスエレクトロニクス株式会社 モータの駆動制御装置およびディスク回転システム
US8005647B2 (en) 2005-04-08 2011-08-23 Rosemount, Inc. Method and apparatus for monitoring and performing corrective measures in a process plant using monitoring data with corrective measures data
US9201420B2 (en) 2005-04-08 2015-12-01 Rosemount, Inc. Method and apparatus for performing a function in a process plant using monitoring data with criticality evaluation data
US8112565B2 (en) * 2005-06-08 2012-02-07 Fisher-Rosemount Systems, Inc. Multi-protocol field device interface with automatic bus detection
US7272531B2 (en) * 2005-09-20 2007-09-18 Fisher-Rosemount Systems, Inc. Aggregation of asset use indices within a process plant
US20070068225A1 (en) * 2005-09-29 2007-03-29 Brown Gregory C Leak detector for process valve
US7953501B2 (en) 2006-09-25 2011-05-31 Fisher-Rosemount Systems, Inc. Industrial process control loop monitor
US8788070B2 (en) * 2006-09-26 2014-07-22 Rosemount Inc. Automatic field device service adviser
WO2008042290A2 (en) 2006-09-29 2008-04-10 Rosemount Inc. Magnetic flowmeter with verification
TWI334764B (en) * 2006-12-01 2010-12-11 Delta Electronics Inc Fan system and starting method thereof
CN101201059B (zh) * 2006-12-12 2011-05-04 台达电子工业股份有限公司 风扇系统及其启动方法
US8903577B2 (en) 2009-10-30 2014-12-02 Lsi Industries, Inc. Traction system for electrically powered vehicles
US8604709B2 (en) 2007-07-31 2013-12-10 Lsi Industries, Inc. Methods and systems for controlling electrical power to DC loads
US7598683B1 (en) 2007-07-31 2009-10-06 Lsi Industries, Inc. Control of light intensity using pulses of a fixed duration and frequency
US8898036B2 (en) * 2007-08-06 2014-11-25 Rosemount Inc. Process variable transmitter with acceleration sensor
US8301676B2 (en) * 2007-08-23 2012-10-30 Fisher-Rosemount Systems, Inc. Field device with capability of calculating digital filter coefficients
US7702401B2 (en) 2007-09-05 2010-04-20 Fisher-Rosemount Systems, Inc. System for preserving and displaying process control data associated with an abnormal situation
US7590511B2 (en) * 2007-09-25 2009-09-15 Rosemount Inc. Field device for digital process control loop diagnostics
US8055479B2 (en) 2007-10-10 2011-11-08 Fisher-Rosemount Systems, Inc. Simplified algorithm for abnormal situation prevention in load following applications including plugged line diagnostics in a dynamic process
JP5165400B2 (ja) * 2008-01-23 2013-03-21 オリンパス株式会社 光源装置
US10094485B2 (en) 2008-07-18 2018-10-09 Flowserve Management Company Variable-speed actuator
MX359908B (es) * 2008-07-18 2018-10-16 Flowserve Man Co Accionador de velocidad variable.
US10100827B2 (en) * 2008-07-28 2018-10-16 Eaton Intelligent Power Limited Electronic control for a rotary fluid device
JP2012506016A (ja) * 2008-10-17 2012-03-08 イートン コーポレーション 油圧システムのバルブを制御する作動装置及び方法
US7921734B2 (en) * 2009-05-12 2011-04-12 Rosemount Inc. System to detect poor process ground connections
DE102009027346A1 (de) * 2009-06-30 2011-01-05 Robert Bosch Gmbh Verfahren und elektrische Schaltung zum Betreiben eines Elektromotors, insbesondere eines Stellmotors für eine Komponente einer Brennkraftmaschine
WO2011049980A1 (en) * 2009-10-19 2011-04-28 Qm Power, Inc. Parallel magnetic circuit motor
US9385641B2 (en) * 2009-11-18 2016-07-05 Standard Microsystems Corporation System and method for inducing rotation of a rotor in a sensorless motor
US8896246B2 (en) * 2010-05-28 2014-11-25 Standard Microsystems Corporation Method for aligning and starting a BLDC three phase motor
US9207670B2 (en) 2011-03-21 2015-12-08 Rosemount Inc. Degrading sensor detection implemented within a transmitter
US9927788B2 (en) 2011-05-19 2018-03-27 Fisher-Rosemount Systems, Inc. Software lockout coordination between a process control system and an asset management system
DE102012009856B3 (de) * 2012-05-21 2013-05-29 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt Antriebsanordnung
US9052240B2 (en) 2012-06-29 2015-06-09 Rosemount Inc. Industrial process temperature transmitter with sensor stress diagnostics
US9207129B2 (en) 2012-09-27 2015-12-08 Rosemount Inc. Process variable transmitter with EMF detection and correction
US9602122B2 (en) 2012-09-28 2017-03-21 Rosemount Inc. Process variable measurement noise diagnostic
KR20140086496A (ko) * 2012-12-28 2014-07-08 삼성전기주식회사 Srm 제어 방법 및 이러한 방법을 사용하는 장치
CN104201855B (zh) * 2014-08-27 2016-08-24 中国矿业大学 一种四相开关磁阻电机转矩脉动两电平抑制方法
DE102016106547A1 (de) 2016-04-11 2017-10-12 Robert Bosch Gmbh Schaltereinrichtung für einen elektromotor, steuereinrichtung, lenksystem
FR3055759B1 (fr) * 2016-09-02 2020-10-30 Mmt ag Ensemble mecatronique pilote par un signal en modulation de largeur d’impulsion
FR3081269B1 (fr) 2018-05-17 2020-05-22 Sonceboz Automotive Sa Ensemble mecatronique pour l'entrainement ou le positionnement d'un organe exterieur
US11499372B2 (en) * 2019-10-28 2022-11-15 Halliburton Energy Services, Inc. Downhole tractor control systems and methods to adjust a load of a downhole motor
TWI771099B (zh) * 2021-07-12 2022-07-11 致新科技股份有限公司 馬達控制器
US11764709B2 (en) 2021-07-15 2023-09-19 Global Mixed-Mode Technology Inc. Motor controller

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3436635A (en) * 1965-09-02 1969-04-01 Bendix Corp Pulse width modulated servo drive control system
US3569805A (en) * 1968-08-28 1971-03-09 Reliance Electric Co Synchronizing circuit
US3560827A (en) * 1969-05-09 1971-02-02 Security Trust Co Of Rochester System for controlling the velocity and position of a rotating member
US3753067A (en) * 1972-05-17 1973-08-14 Peripheral Systems Corp Motor speed regulation system
US4186334A (en) * 1978-02-07 1980-01-29 Tokyo Shibaura Denki Kabushiki Kaisha Control systems of alternating current motors
US4456859A (en) * 1978-04-12 1984-06-26 Janome Sewing Machine Co. Ltd. Sewing machine drive motor control system
DE2833593C2 (de) * 1978-07-31 1980-09-25 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zur Bildung eines elektrischen Spannungssignals, das einer Flußkomponente in einer Drehfeldmaschine proportional ist
JPS5662092A (en) * 1979-10-24 1981-05-27 Hitachi Ltd Controlling system for inverter of induction motor
JPS5671855A (en) * 1979-11-15 1981-06-15 Sony Corp Playback device of disc
US4300081A (en) * 1980-03-14 1981-11-10 General Motors Corporation Motor voltage feedback for a servo motor control system
US4465961A (en) * 1981-06-15 1984-08-14 Zycron Systems, Inc. Motor control system
JPS5854885A (ja) * 1981-09-25 1983-03-31 Sony Corp 映像信号再生装置
JPS597964A (ja) * 1982-07-06 1984-01-17 Canon Inc 記録媒体駆動装置
US4546293A (en) * 1982-08-24 1985-10-08 Sundstrand Corporation Motor control for a brushless DC motor
JPS5981712A (ja) * 1982-11-02 1984-05-11 Canon Inc 制御方式
JPS60167688A (ja) * 1984-01-26 1985-08-31 Canon Inc 回転位相制御回路
EP0157202B1 (de) * 1984-03-08 1989-10-04 Kabushiki Kaisha Meidensha Pulsgenerator mit digitaler Pulsweitenmodulation
JPS60241784A (ja) * 1984-05-15 1985-11-30 Sanyo Electric Co Ltd 直流サ−ボモ−タの制御装置
US4602201A (en) * 1984-06-05 1986-07-22 Westinghouse Electric Corp. PWM motor drive with torque determination
DE3578867D1 (de) * 1984-10-19 1990-08-30 Kollmorgen Corp Variable reluktanzmaschine mit variabler geschwindigkeit.
JPS61240875A (ja) * 1985-04-16 1986-10-27 Fanuc Ltd 三相誘導電動機の制御方法
SE457307B (sv) * 1986-06-17 1988-12-12 Ems Electronic Motor Systems Foerfarande och anordning foer reglering av en borstloes likstroemsmotor
US4734628A (en) * 1986-12-01 1988-03-29 Carrier Corporation Electrically commutated, variable speed compressor control system
US4924168A (en) * 1987-06-01 1990-05-08 Hitachi, Ltd. Control apparatus for PWM-controlled, variable voltage/variable frequency inverters
US4843288A (en) * 1988-03-28 1989-06-27 Rigidyne Corporation Phase locked motor control system for multiple disk drive units
US4897583A (en) * 1989-03-07 1990-01-30 Sundstrand Corporation Variable speed variable torque brushless DC motor
US5072166A (en) * 1990-06-18 1991-12-10 The Texas A&M University System Position sensor elimination technique for the switched reluctance motor drive
US5208740A (en) * 1991-05-30 1993-05-04 The Texas A & M University System Inverse dual converter for high-power applications
KR100234731B1 (ko) * 1992-02-21 1999-12-15 구자홍 에스알엠의 위치 검출장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19928357A1 (de) * 1999-06-21 2001-01-04 Sig Positec Bergerlahr Gmbh & Verfahren zum Betreiben einer Synchronmaschine sowie elektrischer Antrieb

Also Published As

Publication number Publication date
WO1995008214A1 (en) 1995-03-23
CA2171107A1 (en) 1995-03-23
DE69410476D1 (de) 1998-06-25
CA2171107C (en) 2003-08-19
JPH09502860A (ja) 1997-03-18
EP0719473A1 (de) 1996-07-03
EP0719473B1 (de) 1998-05-20
TW301819B (de) 1997-04-01
US5489831A (en) 1996-02-06
JP3432226B2 (ja) 2003-08-04

Similar Documents

Publication Publication Date Title
DE69410476T2 (de) Pulsbreitenmodulierter motorregler
DE69618870T2 (de) Treiberimpuls-Begrenzerschaltung
DE69420476T2 (de) Verriegelungsgesteuerter Ausgangstreiber
DE69404407T2 (de) Linearmotor
DE69401409T2 (de) Linearmotor
DE59304341D1 (de) Antriebsmotor
DE69434163D1 (de) Pulsbreitenmodulationsverstärker
DE59207632D1 (de) Steuermotor
DE69410421T2 (de) Fahrzeug-Antriebseinheit
DE9315573U1 (de) Fahrgerät
DE69313319T2 (de) Pulsbreitenmodulierten Sensor
DE59405466D1 (de) Antriebskombination
NO961157D0 (no) Peledriver
KR940021476U (ko) 모터 제어장치
KR950015845U (ko) 펄스폭 변조 발생장치
KR940027689U (ko) 편평형 무정류자 전동기
KR940023645U (ko) 모터
KR950000652U (ko) 드라이버
KR950007468U (ko) 모터 속도 조절장치
DE9303861U1 (de) Spannungsimpulsmotor
NO930468L (no) Motor
KR950010288U (ko) 모터
KR950015781U (ko) 모터
KR950015768U (ko) 모터
DE9317346U1 (de) Auftreiber

Legal Events

Date Code Title Description
8364 No opposition during term of opposition