SE9502481L - Sätt och anordning för bestämning av typ av extern kraftkälla - Google Patents

Sätt och anordning för bestämning av typ av extern kraftkälla

Info

Publication number
SE9502481L
SE9502481L SE9502481A SE9502481A SE9502481L SE 9502481 L SE9502481 L SE 9502481L SE 9502481 A SE9502481 A SE 9502481A SE 9502481 A SE9502481 A SE 9502481A SE 9502481 L SE9502481 L SE 9502481L
Authority
SE
Sweden
Prior art keywords
external power
battery
pull
type
resistor
Prior art date
Application number
SE9502481A
Other languages
English (en)
Other versions
SE9502481D0 (sv
Inventor
David Mark Demuro
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of SE9502481D0 publication Critical patent/SE9502481D0/sv
Publication of SE9502481L publication Critical patent/SE9502481L/sv

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/263Arrangements for using multiple switchable power supplies, e.g. battery and AC
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/60Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
    • H02J7/663Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements using battery or load disconnect circuits
    • H02J7/667Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements using battery or load disconnect circuits disconnection of loads if battery is not under charge, e.g. in vehicle if engine is not running
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/60Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements
    • H02J7/685Circuit arrangements for charging or discharging batteries or for supplying loads from batteries including safety or protection arrangements using connection detecting circuits
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/865Battery or charger load switching, e.g. concurrent charging and load supply
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/6608Structural association with built-in electrical component with built-in single component
    • H01R13/6616Structural association with built-in electrical component with built-in single component with resistor
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R31/00Coupling parts supported only by co-operation with counterpart
    • H01R31/06Intermediate parts for linking two coupling parts, e.g. adapter
    • H01R31/065Intermediate parts for linking two coupling parts, e.g. adapter with built-in electric apparatus
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Dc-Dc Converters (AREA)
SE9502481A 1993-11-09 1995-07-07 Sätt och anordning för bestämning av typ av extern kraftkälla SE9502481L (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/149,686 US5506490A (en) 1993-11-09 1993-11-09 Method and apparatus for determining external power supply type
PCT/US1994/011765 WO1995013643A1 (en) 1993-11-09 1994-10-17 Method and apparatus for determining external power supply type

Publications (2)

Publication Number Publication Date
SE9502481D0 SE9502481D0 (sv) 1995-07-07
SE9502481L true SE9502481L (sv) 1995-09-11

Family

ID=22531382

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9502481A SE9502481L (sv) 1993-11-09 1995-07-07 Sätt och anordning för bestämning av typ av extern kraftkälla

Country Status (16)

Country Link
US (1) US5506490A (sv)
JP (1) JPH08505999A (sv)
KR (1) KR0171253B1 (sv)
CN (1) CN1035971C (sv)
AU (1) AU677135B2 (sv)
BR (1) BR9405748A (sv)
CA (1) CA2153042C (sv)
DE (1) DE4498754T1 (sv)
ES (1) ES2106666B1 (sv)
FR (1) FR2713028B1 (sv)
GB (1) GB2289382B (sv)
RU (1) RU2141155C1 (sv)
SE (1) SE9502481L (sv)
SG (1) SG49602A1 (sv)
WO (1) WO1995013643A1 (sv)
ZA (1) ZA948526B (sv)

Families Citing this family (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06164469A (ja) * 1992-11-25 1994-06-10 Fujitsu Ltd オンフック/オフフック検出手段及び電池識別手段を備えた携帯端末装置用充電器
BR9405568A (pt) * 1993-09-02 1999-09-08 Motorola Inc Fonte de energia externa para conexão a dispositivo eletrônico.
KR0168109B1 (ko) * 1993-12-07 1999-04-15 전성원 직류및교류입력의겸용을위한전원충전장치및그충전방법
FI96465C (sv) * 1994-05-16 1996-06-25 Nokia Mobile Phones Ltd En metod och ett kopplingsarrangemang för identifiering av en laddare för laddbara batterier till en bärbar apparat
US5925942A (en) * 1997-07-16 1999-07-20 Motorola, Inc. Power supply control apparatus and method suitable for use in an electronic device
FR2769143A1 (fr) * 1997-09-26 1999-04-02 Philips Electronics Nv Equipement telephonique a batterie rechargeable et detection du type de chargeur utilise
US6038457A (en) * 1997-12-05 2000-03-14 Motorola, Inc. Apparatus and method for detecting and powering an accessory
US6295567B1 (en) * 1998-01-26 2001-09-25 Dell Usa, L.P. Chassis type determination in an electronic system
WO1999053627A1 (en) 1998-04-10 1999-10-21 Chrimar Systems, Inc. Doing Business As Cms Technologies System for communicating with electronic equipment on a network
DE19928809B4 (de) * 1999-06-17 2008-05-08 Solarc Innovative Solarprodukte Gmbh Universelle Energieversorgungseinheit für unterschiedliche elektrische Kleingeräte
US6429622B1 (en) 2000-11-14 2002-08-06 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for authenticating a charging unit by a portable battery-operated electronic device
EP1462315B1 (en) * 2001-11-27 2007-02-21 Lear Automotive (EEDS) Spain, S.L. System and method for protecting against short circuits in electric power distribution architectures with two voltage levels
FR2833422B1 (fr) * 2001-12-11 2004-03-05 Fabrice Barthelemy Source et systeme controlables d'alimentation d'une charge electrique amovible
US6977479B2 (en) * 2002-01-08 2005-12-20 Hsu Po-Jung John Portable cell phone battery charger using solar energy as the primary source of power
US7736300B2 (en) * 2003-04-14 2010-06-15 Softscope Medical Technologies, Inc. Self-propellable apparatus and method
JP3768984B2 (ja) * 2003-09-12 2006-04-19 キヤノン株式会社 二次電池充電方法及び装置
CN100375942C (zh) * 2003-09-26 2008-03-19 纬创资通股份有限公司 具有可识别电源适配器的系统装置与识别方法
US7868486B2 (en) 2004-01-15 2011-01-11 Comarco Wireless Technologies, Inc Power supply having source determination circuitry utilized to disable battery charging circuitry in powered device
US9153960B2 (en) 2004-01-15 2015-10-06 Comarco Wireless Technologies, Inc. Power supply equipment utilizing interchangeable tips to provide power and a data signal to electronic devices
US7068013B2 (en) * 2004-02-20 2006-06-27 Motorola, Inc. Battery circuit with non-volitable memory and thermistor on a single line
US20060098358A1 (en) * 2004-11-08 2006-05-11 Wambsganss Peter M Power supply configured to detect a power source
US7408132B2 (en) * 2004-11-08 2008-08-05 Rrc Power Solutions Gmbh Temperature sensor for power supply
US7526659B2 (en) * 2005-02-01 2009-04-28 Hewlett-Packard Development Company, L.P. Systems and methods for controlling use of power in a computer system
CN101263396B (zh) * 2005-07-14 2011-04-27 波士顿电力公司 用于锂离子电池的控制电子元件
CN100405308C (zh) * 2005-07-21 2008-07-23 宏碁股份有限公司 决定笔记型电脑使用模式的方法
WO2007029225A1 (en) * 2005-09-06 2007-03-15 Powerdsine, Ltd. Method for detecting parameters of a remote device
US7642671B2 (en) 2006-04-28 2010-01-05 Acco Brands Usa Llc Power supply system providing two output voltages
JP4195714B2 (ja) * 2006-06-13 2008-12-10 京セラ株式会社 携帯通信端末、充電モード切換方法および充電モード切換プログラム
TWI426678B (zh) * 2006-06-28 2014-02-11 波士頓電力公司 具有多重充電率之電子裝置、電池組、充電於電子裝置中的鋰離子電荷儲存電源供應器之方法及可攜式電腦
US8242742B2 (en) * 2007-06-06 2012-08-14 O2Micro, Inc Chargers, systems and methods for detecting a power source
JPWO2009057187A1 (ja) * 2007-10-29 2011-03-10 富士通株式会社 充電システム、処理装置及び給電装置
US20100108291A1 (en) * 2008-09-12 2010-05-06 Boston-Power, Inc. Method and apparatus for embedded battery cells and thermal management
US9326346B2 (en) 2009-01-13 2016-04-26 Terralux, Inc. Method and device for remote sensing and control of LED lights
US8358085B2 (en) 2009-01-13 2013-01-22 Terralux, Inc. Method and device for remote sensing and control of LED lights
JP4831177B2 (ja) * 2009-01-30 2011-12-07 ブラザー工業株式会社 画像形成装置、及び、電力供給回路の機種判別方法
CN101483528B (zh) * 2009-02-23 2011-04-20 福建星网锐捷网络有限公司 一种模块化通信设备和管理模块
WO2010098773A1 (en) 2009-02-27 2010-09-02 Hewlett-Packard Development Company, L.P. Variable adapter id circuit
CN102422504A (zh) * 2009-05-18 2012-04-18 波士顿电力公司 可充电电池的能量效率及快速充电模式
US8483886B2 (en) * 2009-09-01 2013-07-09 Boston-Power, Inc. Large scale battery systems and method of assembly
US20110049977A1 (en) * 2009-09-01 2011-03-03 Boston-Power, Inc. Safety and performance optimized controls for large scale electric vehicle battery systems
AP2012006150A0 (en) 2009-09-12 2012-04-30 Fenix Internat Inc Method and apparatus for charging a battery.
CN101667166B (zh) * 2009-09-25 2012-01-25 华为终端有限公司 设备识别方法及装置
JP5556130B2 (ja) * 2009-11-02 2014-07-23 ソニー株式会社 情報処理装置、電源制御方法、プログラム、および電源制御システム
JP2013517613A (ja) * 2009-11-17 2013-05-16 テララックス, インコーポレイテッド Led電源の検出および制御
US8504816B2 (en) * 2010-01-12 2013-08-06 Atmel Rousset S.A.S. Integrated circuit device configuration
US8645720B2 (en) * 2010-01-20 2014-02-04 Dell Products L.P. Power adaptor detection system
EP2355297B1 (en) 2010-02-06 2013-04-03 Braun GmbH Method for charging a battery, as well as a small, battery-operated electrical appliance and a charging circuit
US8884626B2 (en) * 2010-06-21 2014-11-11 Apple Inc. Device calibration for battery type identification
WO2012037436A1 (en) 2010-09-16 2012-03-22 Terralux, Inc. Communication with lighting units over a power bus
US9596738B2 (en) 2010-09-16 2017-03-14 Terralux, Inc. Communication with lighting units over a power bus
CN102736719A (zh) * 2011-04-07 2012-10-17 宏碁股份有限公司 笔记型计算机及其电力供应系统与方法
FR2973963B1 (fr) * 2011-04-08 2013-04-12 Valeo Sys Controle Moteur Sas Dispositif de transfert de charge et procede de gestion associe
US8836287B2 (en) * 2011-05-03 2014-09-16 Apple Inc. Time-domain multiplexing of power and data
US9323298B2 (en) * 2011-06-30 2016-04-26 Broadcom Corporation Adaptive power management
US9118240B2 (en) 2011-08-31 2015-08-25 Comarco Wireless Technologies, Inc. Power supply equipment providing multiple identification signals
US9142982B2 (en) * 2011-11-14 2015-09-22 Mediatek Inc. Method and apparatus for performing charging port detection control
US8896231B2 (en) 2011-12-16 2014-11-25 Terralux, Inc. Systems and methods of applying bleed circuits in LED lamps
JP5912513B2 (ja) * 2011-12-22 2016-04-27 ローム株式会社 充電回路およびそれを利用した電子機器
JP6053280B2 (ja) * 2011-12-22 2016-12-27 ローム株式会社 充電回路およびそれを利用した電子機器
JP5912514B2 (ja) * 2011-12-22 2016-04-27 ローム株式会社 電子機器
EP2618452B1 (en) 2012-01-20 2020-02-19 Vestel Elektronik Sanayi ve Ticaret A.S. An electronic device with source identification unit
US9312576B2 (en) * 2012-02-15 2016-04-12 Htc Corporation Portable electronic devices capable of obtaining charging current value of charger and charging method thereof
TWI460964B (zh) * 2012-12-07 2014-11-11 Pegatron Corp 電源轉換器、電子裝置及偵測電源轉換器輸出功率之方法
US20140219465A1 (en) 2013-02-06 2014-08-07 Zeikos Inc. Power transferring headphones
US9276539B2 (en) 2013-02-06 2016-03-01 Zeikos Inc. Power transferring headphones
US9271063B2 (en) 2013-02-06 2016-02-23 Zeikos Inc. Power transferring headphones
WO2014168634A1 (en) * 2013-04-12 2014-10-16 Hewlett-Packard Development Company, Lp Determining an attribute of an adapter based on a ratio of voltage divider output voltages
US9265119B2 (en) 2013-06-17 2016-02-16 Terralux, Inc. Systems and methods for providing thermal fold-back to LED lights
JP5949701B2 (ja) * 2013-08-20 2016-07-13 富士通株式会社 充電システム及び処理装置
FI20145231A7 (sv) * 2014-03-13 2015-09-14 Nokia Technologies Oy Apparatur, system, datorprogramprodukt och förfarande för signallering mellan tillbehör och en anordning
CN108139899B (zh) * 2015-09-24 2021-04-23 Oppo广东移动通信有限公司 终端设备和控制充电的方法
CN105322397B (zh) * 2015-10-13 2018-01-23 深圳市祝你快乐科技有限公司 具有充电保护功能的usb端口连接器及其实现方法
CN106684954B (zh) * 2015-11-10 2019-05-07 华为终端(东莞)有限公司 一种充电参数的校验方法及设备和充电器
KR101857469B1 (ko) * 2016-03-22 2018-05-14 현대자동차주식회사 복수의 충전기를 통한 전기차 충전 방법 및 장치
CN106292977B (zh) * 2016-07-26 2019-04-02 Oppo广东移动通信有限公司 一种适配器识别方法及终端
US10305312B2 (en) * 2016-11-08 2019-05-28 Lenovo (Singapore) Pte. Ltd. Supplemental power system for battery powered device
KR102752990B1 (ko) * 2017-01-05 2025-01-10 삼성전자주식회사 배터리 팩으로부터 출력된 전력을 제어하는 회로 및 배터리 팩
JP6566992B2 (ja) * 2017-05-31 2019-08-28 キヤノン株式会社 電子機器、制御方法およびプログラム
TWI697169B (zh) * 2018-06-14 2020-06-21 美律實業股份有限公司 電子裝置
CN110286731A (zh) * 2019-06-30 2019-09-27 联想(北京)有限公司 一种信息处理方法和电子设备
CN110764437A (zh) * 2019-12-02 2020-02-07 苏州小科清洁科技有限公司 一种供电组件及供电组件中的电接口
TWI742921B (zh) * 2020-11-12 2021-10-11 和碩聯合科技股份有限公司 電子裝置、電源適配器及電子裝置產品
CN113922457B (zh) * 2021-10-19 2024-09-03 北京小米移动软件有限公司 充电方法、装置、电子设备及存储介质
KR20250131814A (ko) * 2023-02-13 2025-09-03 니뽄 다바코 산교 가부시키가이샤 에어로졸 생성 장치용 전력 공급 유닛 및 제어 방법
CN118642196B (zh) * 2024-05-15 2026-02-06 深圳市志奋领科技有限公司 光电传感器控制系统及控制方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232260A (en) * 1978-04-19 1980-11-04 Lambkin Fred M Universal battery charger/adapter unit
SU1607045A1 (ru) * 1988-12-20 1990-11-15 Московский энергетический институт Способ контрол @ -элементной аккумул торной батареи
US5164652A (en) * 1989-04-21 1992-11-17 Motorola, Inc. Method and apparatus for determining battery type and modifying operating characteristics
JP2885827B2 (ja) * 1989-06-08 1999-04-26 キヤノン株式会社 電子機器及び前記電子機器の電源監視方法
GB2239567A (en) * 1990-04-05 1991-07-03 Technophone Ltd Portable radio telephone useable with batteries of different types; battery charging
AU642088B2 (en) * 1991-05-16 1993-10-07 Tokyo Electric Co. Ltd. Facsimile equipment
US5184059A (en) * 1991-09-16 1993-02-02 Motorola, Inc. Expanded battery capacity identification scheme and apparatus
JP2776105B2 (ja) * 1992-01-07 1998-07-16 三菱電機株式会社 電子機器及び電子機器への電力供給方法
US5369352A (en) * 1993-04-26 1994-11-29 Ford Motor Company Universal electric vehicle charging adapter
JP2530098B2 (ja) * 1993-08-30 1996-09-04 八重洲無線株式会社 携帯用電子機器とその電池パックとその充電器とそのアタッチメント

Also Published As

Publication number Publication date
FR2713028B1 (fr) 1997-09-26
WO1995013643A1 (en) 1995-05-18
US5506490A (en) 1996-04-09
GB2289382A (en) 1995-11-15
KR0171253B1 (ko) 1999-05-01
BR9405748A (pt) 1995-12-05
RU2141155C1 (ru) 1999-11-10
SE9502481D0 (sv) 1995-07-07
ZA948526B (en) 1995-06-23
CN1116462A (zh) 1996-02-07
CN1035971C (zh) 1997-09-24
DE4498754T1 (de) 1997-07-31
SG49602A1 (en) 1998-06-15
AU1082695A (en) 1995-05-29
JPH08505999A (ja) 1996-06-25
GB2289382B (en) 1998-07-08
AU677135B2 (en) 1997-04-10
FR2713028A1 (fr) 1995-06-02
ES2106666B1 (es) 1998-06-01
ES2106666A1 (es) 1997-11-01
CA2153042C (en) 1997-02-25
GB9513642D0 (en) 1995-09-06

Similar Documents

Publication Publication Date Title
SE9502481D0 (sv) Sätt och anordning för bestämning av typ av extern kraftkälla
DE69322320D1 (de) Vorrichtung zur überwachung des ladezustandes einer batterie
EP0404588A3 (en) A power supply control system for a computer
CA2124885A1 (en) Alternative power supply apparatus
RU95117642A (ru) Способ и устройство для определения типа внешнего источника электропитания
SE8205797D0 (sv) Laddningsregulator
ATE56568T1 (de) Stromversorgungsschaltung.
DE69508746D1 (de) Selbstkonfigurierendes Batterieladegerät mit Mehrfachfunktionen als Versorgungsspannungsregler für batteriebetriebene Geräte
DE59406187D1 (de) Spannungsregler zur regelung der ausgangsspannung eines generators
ATE23247T1 (de) Vorrichtung zur beseitigung statischer elektrizitaet.
TW340221B (en) Internal source voltage generating circuit
EP0766162A3 (en) Circuit for improved load transient response in power supplies
SE0002861D0 (sv) Förfarande samt anordning för spänningssättning av en VSC-strömriktare
CN223727969U (zh) 一种便携式恒压逻辑寻线仪
JPS561963A (en) Electric charger
JPS5467688A (en) Method of applying voltage for monitoring power cable insulation
ES284615U (es) Procedimiento de vigilancia de una red de distribucion elec-trica cualquiera
PL336695A1 (en) Generator and method of measuring generator's output voltage
SE9201476L (sv) Förfarande för uppladdning av ett batteri
KR100234753B1 (ko) 저전력 스탠바이 회로
JPS5932329A (ja) 充電回路
JPH0428742U (sv)
SU1411932A1 (ru) Генератор симметричных пр моугольных импульсов
KR920007744Y1 (ko) 건전지 충전 표시 회로
JPS5743585A (en) Slip angle frequency calculating device for induction motor

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 9502481-6

Format of ref document f/p: F