CH656776GA3 - - Google Patents

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Publication number
CH656776GA3
CH656776GA3 CH364884A CH364884A CH656776GA3 CH 656776G A3 CH656776G A3 CH 656776GA3 CH 364884 A CH364884 A CH 364884A CH 364884 A CH364884 A CH 364884A CH 656776G A3 CH656776G A3 CH 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 filed filed Critical
Priority to CH364884A priority Critical patent/CH656776GA3/fr
Priority to EP85108930A priority patent/EP0171635B1/en
Priority to US06/755,753 priority patent/US4683428A/en
Priority to DE8585108930T priority patent/DE3563568D1/en
Priority to JP16418985A priority patent/JPS6142298A/en
Publication of CH656776GA3 publication Critical patent/CH656776GA3/fr
Priority to SG42391A priority patent/SG42391G/en
Priority to HK325/92A priority patent/HK32592A/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position
    • H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
    • H02P6/185—Circuit arrangements for detecting position without separate position detecting elements using inductance sensing, e.g. pulse excitation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Stepping Motors (AREA)
  • Control Of Multiple Motors (AREA)
  • Electromechanical Clocks (AREA)

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.
CH364884A 1984-07-27 1984-07-27 CH656776GA3 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CH364884A CH656776GA3 (en) 1984-07-27 1984-07-27
EP85108930A EP0171635B1 (en) 1984-07-27 1985-07-17 Method and apparatus to recognise the position of the rotor of a stepping motor
US06/755,753 US4683428A (en) 1984-07-27 1985-07-17 Method of and a device for identifying the position of the rotor of a stepping motor
DE8585108930T DE3563568D1 (en) 1984-07-27 1985-07-17 Method and apparatus to recognise the position of the rotor of a stepping motor
JP16418985A JPS6142298A (en) 1984-07-27 1985-07-26 Method and device for identifying position of rotor of stepping motor
SG42391A SG42391G (en) 1984-07-27 1991-06-07 Method and apparatus to recognise the position of the rotor of a stepping motor
HK325/92A HK32592A (en) 1984-07-27 1992-05-07 Method and apparatus to recognise the position of the rotor of a stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH364884A CH656776GA3 (en) 1984-07-27 1984-07-27

Publications (1)

Publication Number Publication Date
CH656776GA3 true CH656776GA3 (en) 1986-07-31

Family

ID=4260508

Family Applications (1)

Application Number Title Priority Date Filing Date
CH364884A CH656776GA3 (en) 1984-07-27 1984-07-27

Country Status (7)

Country Link
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 number Priority date Publication date Assignee Title
DE4090927B4 (en) * 1989-06-01 2006-09-21 Papst Licensing Gmbh & Co. Kg Motor, in particular brushless DC motor
US6285155B1 (en) 1999-10-29 2001-09-04 Abbott Laboratories Pseudo half-step motor drive method and apparatus
US9026370B2 (en) 2007-12-18 2015-05-05 Hospira, Inc. User interface improvements for medical devices
JP5105201B2 (en) * 2008-07-30 2012-12-26 Ｔｄｋ株式会社 Angle detection apparatus and angle detection method
JP5616138B2 (en) * 2010-06-17 2014-10-29 パナソニック株式会社 Stepping motor drive device
AU2012299169B2 (en) 2011-08-19 2017-08-24 Icu Medical, Inc. Systems and methods for a graphical interface including a graphical representation of medical data
US10022498B2 (en) 2011-12-16 2018-07-17 Icu 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) 2012-03-30 2018-04-04 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) 2012-07-31 2017-10-19 Icu Medical, Inc. Patient care system for critical medications
AU2014268355B2 (en) 2013-05-24 2018-06-14 Icu Medical, Inc. Multi-sensor infusion system for detecting air or an occlusion in the infusion system
WO2014194065A1 (en) 2013-05-29 2014-12-04 Hospira, Inc. Infusion system and method of use which prevents over-saturation of an analog-to-digital converter
US10166328B2 (en) 2013-05-29 2019-01-01 Icu Medical, Inc. Infusion system which utilizes one or more sensors and additional information to make an air determination regarding the infusion system
EP3110474B1 (en) 2014-02-28 2019-12-18 ICU Medical, Inc. Infusion system and method which utilizes dual wavelength optical air-in-line detection
US11344673B2 (en) 2014-05-29 2022-05-31 Icu Medical, Inc. Infusion system and pump with configurable closed loop delivery rate catch-up
US11344668B2 (en) 2014-12-19 2022-05-31 Icu Medical, Inc. Infusion system with concurrent TPN/insulin infusion
US10850024B2 (en) 2015-03-02 2020-12-01 Icu Medical, Inc. Infusion system, device, and method having advanced infusion features
CA3023658C (en) 2016-05-13 2023-03-07 Icu Medical, Inc. Infusion pump system and method with common line auto flush
WO2017214441A1 (en) 2016-06-10 2017-12-14 Icu Medical, Inc. Acoustic flow sensor for continuous medication flow measurements and feedback control of infusion
US10089055B1 (en) 2017-12-27 2018-10-02 Icu Medical, Inc. Synchronized display of screen content on networked devices
US11278671B2 (en) 2019-12-04 2022-03-22 Icu Medical, Inc. Infusion pump with safety sequence keypad
CA3189781A1 (en) 2020-07-21 2022-01-27 Icu Medical, Inc. Fluid transfer devices and methods of use
US11135360B1 (en) 2020-12-07 2021-10-05 Icu Medical, Inc. Concurrent infusion with common line auto flush
USD1091564S1 (en) 2021-10-13 2025-09-02 Icu Medical, Inc. Display screen or portion thereof with graphical user interface for a medical device
CA3241894A1 (en) 2021-12-10 2023-06-15 Icu Medical, Inc. Medical fluid compounding systems with coordinated flow control

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944872B1 (en) * 1979-11-07 1981-03-26 Gebrüder Junghans GmbH, 78713 Schramberg Arrangement for controlling a stepper motor for battery operated devices
GB2077002A (en) * 1980-05-21 1981-12-09 Berney Sa Jean Claude Electronic timepiece comprising a control circuit of the motor
EP0057663A2 (en) * 1981-02-04 1982-08-11 Koninklijke Philips Electronics N.V. Control device for stepping motor
EP0077293A1 (en) * 1981-10-02 1983-04-20 Asulab S.A. Process and device for controlling a stepping motor in a clock mechanism
EP0085648A1 (en) * 1982-01-28 1983-08-10 Asulab 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 number Priority date Publication date Assignee Title
CH641921B (en) * 1980-02-19 Berney Sa Jean Claude WATCH PART WITH A STEP MOTOR CONTROL DEVICE.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944872B1 (en) * 1979-11-07 1981-03-26 Gebrüder Junghans GmbH, 78713 Schramberg Arrangement for controlling a stepper motor for battery operated devices
GB2077002A (en) * 1980-05-21 1981-12-09 Berney Sa Jean Claude Electronic timepiece comprising a control circuit of the motor
EP0057663A2 (en) * 1981-02-04 1982-08-11 Koninklijke Philips Electronics N.V. Control device for stepping motor
EP0077293A1 (en) * 1981-10-02 1983-04-20 Asulab S.A. Process and device for controlling a stepping motor in a clock mechanism
EP0085648A1 (en) * 1982-01-28 1983-08-10 Asulab 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 number Publication 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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Legal Events

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PL Patent ceased