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CH673751GA3 - - Google Patents

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Publication number
CH673751GA3
CH673751GA3 CH180988A CH180988A CH673751GA3 CH 673751G A3 CH673751G A3 CH 673751GA3 CH 180988 A CH180988 A CH 180988A CH 180988 A CH180988 A CH 180988A CH 673751G A3 CH673751G A3 CH 673751GA3
Authority
CH
Switzerland
Prior art keywords
magnetic field
rotor
magnet
field
axis
Prior art date
Application number
CH180988A
Other languages
French (fr)
Other versions
CH673751B5 (en
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 CH439289A priority Critical patent/CH680253GA3/en
Priority to CH1809/88A priority patent/CH673751B5/fr
Priority to DE8989108094T priority patent/DE68900407D1/en
Priority to EP89108094A priority patent/EP0341582B1/en
Priority to JP1115221A priority patent/JP2694010B2/en
Priority to US07/349,727 priority patent/US5028857A/en
Publication of CH673751GA3 publication Critical patent/CH673751GA3/fr
Publication of CH673751B5 publication Critical patent/CH673751B5/fr

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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
    • H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
    • H02K37/14—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
    • 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
    • H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
    • H02P8/02—Arrangements for controlling dynamo-electric motors rotating step by step specially adapted for single-phase or bi-pole stepper motors, e.g. watch-motors, clock-motors

Landscapes

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

Abstract

The method is intended for improving the efficiency of a stepping motor (1) having a rotor (15) possessing a permanent magnet (16) generating a first magnetic field, and a first coil (13) and second coil (14) intended respectively for applying to the magnet (16) a second magnetic field (18) and a third magnetic field (19) symmetrical to one another in relation to an axis of symmetry (7) intersecting the axis of rotation (15a) of the rotor (15). <??>The method involves applying to the motor (1), to rotate its rotor (15) in a particular direction, driving pulses during which the two coils (13, 14) are fed simultaneously with currents of such direction and intensity that, at the start of each driving pulse, the magnetic field obtained as a result of the vector addition of the second (18) and third (19) magnetic field in the magnet (16) forms, with another magnetic field (17), itself obtained as a result of the vector addition in the magnet (16) of the two parts of the field generated by the latter, which each pass through one of the coils (13, 14), an angle of between 110 DEG and 160 DEG and of a direction, measured from this last field (17) obtained towards the preceding one, identical to the direction of rotation of the rotor (15). <??>The claimed motor (1) can advantageously be controlled by the above method by virtue of the fact that its positioning means (21, 22) are arranged in such a way that, in each of the positions of rest of its rotor (15), the abovementioned second field (17) obtained forms an angle (A) of a value of between 20 DEG and 60 DEG with the axis of symmetry (7). <IMAGE>
CH1809/88A 1988-05-11 1988-05-11 CH673751B5 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH439289A CH680253GA3 (en) 1988-05-11 1988-05-11 Bidirectional stepping motor
CH1809/88A CH673751B5 (en) 1988-05-11 1988-05-11
DE8989108094T DE68900407D1 (en) 1988-05-11 1989-05-05 CONTROL METHOD OF A TWO-DIRECTION STEPPING MOTOR AND TWO-DIRECTION STEPPING MOTOR CONTROLLED BY THIS METHOD.
EP89108094A EP0341582B1 (en) 1988-05-11 1989-05-05 Control method for a bidirectional step motor, and bidirectional step motor controlled by this method
JP1115221A JP2694010B2 (en) 1988-05-11 1989-05-10 Forward and reverse rotatable stepping motor and control method thereof
US07/349,727 US5028857A (en) 1988-05-11 1989-05-10 Method of controlling a bi-directional stepping motor and a bi-directional stepping motor adapted to be controlled by this method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1809/88A CH673751B5 (en) 1988-05-11 1988-05-11

Publications (2)

Publication Number Publication Date
CH673751GA3 true CH673751GA3 (en) 1990-04-12
CH673751B5 CH673751B5 (en) 1990-10-15

Family

ID=4219114

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1809/88A CH673751B5 (en) 1988-05-11 1988-05-11

Country Status (5)

Country Link
US (1) US5028857A (en)
EP (1) EP0341582B1 (en)
JP (1) JP2694010B2 (en)
CH (1) CH673751B5 (en)
DE (1) DE68900407D1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04312400A (en) * 1991-04-09 1992-11-04 Seikosha Co Ltd Reverse drive method for stepping motor
TW288222B (en) * 1994-08-26 1996-10-11 Ebauchesfabrik Eta Ag
FR2743957B1 (en) * 1996-01-22 1998-04-10 Magneti Marelli France REVERSIBLE ELECTRIC STEP MOTOR
JP2900153B1 (en) * 1998-02-10 1999-06-02 セイコーインスツルメンツ株式会社 Analog electronic clock
US6285155B1 (en) * 1999-10-29 2001-09-04 Abbott Laboratories Pseudo half-step motor drive method and apparatus
US6731093B1 (en) * 2002-02-28 2004-05-04 Timex Group B.V. 2-step bi-directional stepping motor
JP4787555B2 (en) * 2005-07-05 2011-10-05 セイコーインスツル株式会社 Method and apparatus for detecting rotation of two-phase step motor
US9026370B2 (en) 2007-12-18 2015-05-05 Hospira, Inc. User interface improvements for medical devices
EP2745204A4 (en) 2011-08-19 2015-01-07 Hospira Inc Systems and methods for a graphical interface including a graphical representation of medical data
WO2013090709A1 (en) 2011-12-16 2013-06-20 Hospira, Inc. System for monitoring and delivering medication to a patient and method of using the same to minimize the risks associated with automated therapy
ES2741725T3 (en) 2012-03-30 2020-02-12 Icu Medical Inc Air detection system and method to detect air in a pump of an infusion system
ES2743160T3 (en) 2012-07-31 2020-02-18 Icu Medical Inc Patient care system for critical medications
WO2014190264A1 (en) 2013-05-24 2014-11-27 Hospira, Inc. Multi-sensor infusion system for detecting air or an occlusion in the infusion system
WO2014194089A1 (en) 2013-05-29 2014-12-04 Hospira, Inc. Infusion system which utilizes one or more sensors and additional information to make an air determination regarding the infusion system
ES2845748T3 (en) 2013-05-29 2021-07-27 Icu Medical Inc Infusion system and method of use that prevent oversaturation of an analog-digital converter
AU2015222800B2 (en) 2014-02-28 2019-10-17 Icu Medical, Inc. Infusion system and method which utilizes dual wavelength optical air-in-line detection
WO2015184366A1 (en) 2014-05-29 2015-12-03 Hospira, 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
EP3037898B1 (en) 2014-12-23 2017-06-21 ETA SA Manufacture Horlogère Suisse Electromechanical apparatus comprising a device for capacitive detection of the angular position of a moving element, and method for detecting the angular position of a moving element
US10850024B2 (en) 2015-03-02 2020-12-01 Icu Medical, Inc. Infusion system, device, and method having advanced infusion features
EP4085944A1 (en) 2016-05-13 2022-11-09 ICU Medical, Inc. Infusion pump system with common line auto flush
ES2992878T3 (en) 2016-06-10 2024-12-19 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2611319A1 (en) * 1975-09-25 1977-04-07 Citizen Watch Co Ltd STEPPER MOTOR FOR AN ELECTRONIC CLOCK
US4144467A (en) * 1973-11-30 1979-03-13 Citizen Watch Co., Ltd. Pulse motor
EP0092522A1 (en) * 1982-04-21 1983-10-26 Eta SA Fabriques d'Ebauches Reversible step motor and method of controlling the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2054978B (en) * 1979-07-06 1984-06-13 Ebauches Sa Electromagnetic motor rotatable in either direction
CH647383GA3 (en) * 1981-02-04 1985-01-31
DE3360937D1 (en) * 1982-01-28 1985-11-14 Asulab Sa Stepping motor with two directions of rotation, in particular for electronic time pieces, and motor unit comprising the same
CH647128GA3 (en) * 1982-02-15 1985-01-15
CH649438GA3 (en) * 1983-07-06 1985-05-31
CH654974GA3 (en) * 1984-05-04 1986-03-27

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4144467A (en) * 1973-11-30 1979-03-13 Citizen Watch Co., Ltd. Pulse motor
DE2611319A1 (en) * 1975-09-25 1977-04-07 Citizen Watch Co Ltd STEPPER MOTOR FOR AN ELECTRONIC CLOCK
EP0092522A1 (en) * 1982-04-21 1983-10-26 Eta SA Fabriques d'Ebauches Reversible step motor and method of controlling the same

Also Published As

Publication number Publication date
EP0341582B1 (en) 1991-11-06
JPH01318593A (en) 1989-12-25
CH673751B5 (en) 1990-10-15
JP2694010B2 (en) 1997-12-24
DE68900407D1 (en) 1991-12-12
EP0341582A1 (en) 1989-11-15
US5028857A (en) 1991-07-02

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