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CH656776GA3 - - Google Patents

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Publication number
CH656776GA3
CH656776GA3CH364884ACH364884ACH656776GA3CH 656776G A3CH656776G A3CH 656776GA3CH 364884 ACH364884 ACH 364884ACH 364884 ACH364884 ACH 364884ACH 656776G A3CH656776G A3CH 656776GA3
Authority
CH
Switzerland
Prior art keywords
coil
time interval
current
control
pulse
Prior art date
Application number
CH364884A
Other languages
French (fr)
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 filedfiledCritical
Priority to CH364884ApriorityCriticalpatent/CH656776GA3/fr
Priority to EP85108930Aprioritypatent/EP0171635B1/en
Priority to US06/755,753prioritypatent/US4683428A/en
Priority to DE8585108930Tprioritypatent/DE3563568D1/en
Priority to JP16418985Aprioritypatent/JPS6142298A/en
Publication of CH656776GA3publicationCriticalpatent/CH656776GA3/fr
Priority to SG42391Aprioritypatent/SG42391G/en
Priority to HK325/92Aprioritypatent/HK32592A/en

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Abstract

The method according to the invention is applicable to motors comprising a magnetized rotor having two diametrically opposed poles, a stator making up a magnetic circuit having saturable constricted portions and a coil coupled magnetically to the stator. The method consists in applying to the coil an electric pulse, in measuring a control current (I'01, I'02) generated within the coil by the electric pulse at the end of a control time interval (t'o-ti) and in comparing the control current with a reference current (Ir), the sign of this comparison being representative of the position of the rotor. In order to take into account the variations in the characteristics of the motor with time, the control time interval (t'o-t'i) is readjusted periodically by means of first and second electric pulses of a learning signal applied to the coil. The first pulse of this signal generates within the coil a first current (I1) which reaches the reference current (Ir) after a first time interval (ta-ti). The second pulse generates a second current (I2) which reaches the reference current (Ir) after a second time interval (tb-ti). The mean value of the first and second time intervals is then taken as the value of the control time interval (t'o-ti). The device for carrying out this method enables the position of the rotor to be identified under optimal conditions and can be used with advantage in timepieces.
CH364884A1984-07-271984-07-27CH656776GA3 (en)

Priority Applications (7)

Application NumberPriority DateFiling DateTitle
CH364884ACH656776GA3 (en)1984-07-271984-07-27
EP85108930AEP0171635B1 (en)1984-07-271985-07-17Method and apparatus to recognise the position of the rotor of a stepping motor
US06/755,753US4683428A (en)1984-07-271985-07-17Method of and a device for identifying the position of the rotor of a stepping motor
DE8585108930TDE3563568D1 (en)1984-07-271985-07-17Method and apparatus to recognise the position of the rotor of a stepping motor
JP16418985AJPS6142298A (en)1984-07-271985-07-26Method and device for identifying position of rotor of stepping motor
SG42391ASG42391G (en)1984-07-271991-06-07Method and apparatus to recognise the position of the rotor of a stepping motor
HK325/92AHK32592A (en)1984-07-271992-05-07Method and apparatus to recognise the position of the rotor of a stepping motor

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
CH364884ACH656776GA3 (en)1984-07-271984-07-27

Publications (1)

Publication NumberPublication Date
CH656776GA3true CH656776GA3 (en)1986-07-31

Family

ID=4260508

Family Applications (1)

Application NumberTitlePriority DateFiling Date
CH364884ACH656776GA3 (en)1984-07-271984-07-27

Country Status (7)

CountryLink
US (1)US4683428A (en)
EP (1)EP0171635B1 (en)
JP (1)JPS6142298A (en)
CH (1)CH656776GA3 (en)
DE (1)DE3563568D1 (en)
HK (1)HK32592A (en)
SG (1)SG42391G (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE4090927B4 (en)*1989-06-012006-09-21Papst Licensing Gmbh & Co. Kg Motor, in particular brushless DC motor
US6285155B1 (en)1999-10-292001-09-04Abbott LaboratoriesPseudo half-step motor drive method and apparatus
US9026370B2 (en)2007-12-182015-05-05Hospira, Inc.User interface improvements for medical devices
JP5105201B2 (en)*2008-07-302012-12-26Ｔｄｋ株式会社 Angle detection apparatus and angle detection method
JP5616138B2 (en)*2010-06-172014-10-29パナソニック株式会社 Stepping motor drive device
AU2012299169B2 (en)2011-08-192017-08-24Icu Medical, Inc.Systems and methods for a graphical interface including a graphical representation of medical data
US10022498B2 (en)2011-12-162018-07-17Icu Medical, Inc.System for monitoring and delivering medication to a patient and method of using the same to minimize the risks associated with automated therapy
JP6306566B2 (en)2012-03-302018-04-04アイシーユー・メディカル・インコーポレーテッド Air detection system and method for detecting air in an infusion system pump
AU2013296555B2 (en)2012-07-312017-10-19Icu Medical, Inc.Patient care system for critical medications
AU2014268355B2 (en)2013-05-242018-06-14Icu Medical, Inc.Multi-sensor infusion system for detecting air or an occlusion in the infusion system
WO2014194065A1 (en)2013-05-292014-12-04Hospira, Inc.Infusion system and method of use which prevents over-saturation of an analog-to-digital converter
US10166328B2 (en)2013-05-292019-01-01Icu Medical, Inc.Infusion system which utilizes one or more sensors and additional information to make an air determination regarding the infusion system
EP3110474B1 (en)2014-02-282019-12-18ICU Medical, Inc.Infusion system and method which utilizes dual wavelength optical air-in-line detection
US11344673B2 (en)2014-05-292022-05-31Icu Medical, Inc.Infusion system and pump with configurable closed loop delivery rate catch-up
US11344668B2 (en)2014-12-192022-05-31Icu Medical, Inc.Infusion system with concurrent TPN/insulin infusion
US10850024B2 (en)2015-03-022020-12-01Icu Medical, Inc.Infusion system, device, and method having advanced infusion features
CA3023658C (en)2016-05-132023-03-07Icu Medical, Inc.Infusion pump system and method with common line auto flush
WO2017214441A1 (en)2016-06-102017-12-14Icu Medical, Inc.Acoustic flow sensor for continuous medication flow measurements and feedback control of infusion
US10089055B1 (en)2017-12-272018-10-02Icu Medical, Inc.Synchronized display of screen content on networked devices
US11278671B2 (en)2019-12-042022-03-22Icu Medical, Inc.Infusion pump with safety sequence keypad
CA3189781A1 (en)2020-07-212022-01-27Icu Medical, Inc.Fluid transfer devices and methods of use
US11135360B1 (en)2020-12-072021-10-05Icu Medical, Inc.Concurrent infusion with common line auto flush
USD1091564S1 (en)2021-10-132025-09-02Icu Medical, Inc.Display screen or portion thereof with graphical user interface for a medical device
CA3241894A1 (en)2021-12-102023-06-15Icu Medical, Inc.Medical fluid compounding systems with coordinated flow control

Citations (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE2944872B1 (en)*1979-11-071981-03-26Gebrüder Junghans GmbH, 78713 Schramberg Arrangement for controlling a stepper motor for battery operated devices
GB2077002A (en)*1980-05-211981-12-09Berney Sa Jean ClaudeElectronic timepiece comprising a control circuit of the motor
EP0057663A2 (en)*1981-02-041982-08-11Koninklijke Philips Electronics N.V.Control device for stepping motor
EP0077293A1 (en)*1981-10-021983-04-20Asulab S.A.Process and device for controlling a stepping motor in a clock mechanism
EP0085648A1 (en)*1982-01-281983-08-10Asulab S.A.Stepping motor with two directions of rotation, in particular for electronic time pieces, and motor unit comprising the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
CH641921B (en)*1980-02-19Berney Sa Jean Claude WATCH PART WITH A STEP MOTOR CONTROL DEVICE.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE2944872B1 (en)*1979-11-071981-03-26Gebrüder Junghans GmbH, 78713 Schramberg Arrangement for controlling a stepper motor for battery operated devices
GB2077002A (en)*1980-05-211981-12-09Berney Sa Jean ClaudeElectronic timepiece comprising a control circuit of the motor
EP0057663A2 (en)*1981-02-041982-08-11Koninklijke Philips Electronics N.V.Control device for stepping motor
EP0077293A1 (en)*1981-10-021983-04-20Asulab S.A.Process and device for controlling a stepping motor in a clock mechanism
EP0085648A1 (en)*1982-01-281983-08-10Asulab S.A.Stepping motor with two directions of rotation, in particular for electronic time pieces, and motor unit comprising the same

Also Published As

Publication numberPublication date
JPS6142298A (en)1986-02-28
JPH0116120B2 (en)1989-03-22
US4683428A (en)1987-07-28
HK32592A (en)1992-05-15
EP0171635A1 (en)1986-02-19
DE3563568D1 (en)1988-08-04
EP0171635B1 (en)1988-06-29
SG42391G (en)1991-07-26

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