CH665084GA3 - - Google Patents
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- Publication number
- CH665084GA3 CH665084GA3 CH258586A CH258586A CH665084GA3 CH 665084G A3 CH665084G A3 CH 665084GA3 CH 258586 A CH258586 A CH 258586A CH 258586 A CH258586 A CH 258586A CH 665084G A3 CH665084G A3 CH 665084GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- coil
- short
- circuiting
- instant
- becomes zero
- Prior art date
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Stepping Motors (AREA)
- Electromechanical Clocks (AREA)
Abstract
The method and the device described are intended to avoid the dissipation of electrical energy that occurs in the coil of a stepping motor when the coil is short-circuited permanently between two drive pulses. The method comprises short-circuiting the coil at the end (t1) of the drive pulse, then putting it on open circuit at the instant (t2) when the current (Ic) flowing through it during the short-circuit becomes zero, and short-circuiting the coil again at the instant (t3) when the voltage induced in it by the rotation of the rotor while the coil is on open circuit becomes zero or reaches a predetermined value (Ud). The device is designed to carry out the method. The invention is applicable to the control of stepping motors of the type for instance that are fitted in electronic timepieces having a hand display.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH258586A CH665084GA3 (en) | 1986-06-26 | 1986-06-26 | |
US07/053,201 US4754210A (en) | 1986-06-26 | 1987-05-22 | Method of and a device for controlling a stepping motor |
EP87107571A EP0250862B1 (en) | 1986-06-26 | 1987-05-25 | Method and device for controlling a stepper motor |
DE8787107571T DE3761064D1 (en) | 1986-06-26 | 1987-05-25 | METHOD AND DEVICE FOR CONTROLLING A STEPPING MOTOR. |
JP62156700A JP2655645B2 (en) | 1986-06-26 | 1987-06-25 | Stepping motor control method and its control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH258586A CH665084GA3 (en) | 1986-06-26 | 1986-06-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH665084GA3 true CH665084GA3 (en) | 1988-04-29 |
Family
ID=4237099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH258586A CH665084GA3 (en) | 1986-06-26 | 1986-06-26 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4754210A (en) |
EP (1) | EP0250862B1 (en) |
JP (1) | JP2655645B2 (en) |
CH (1) | CH665084GA3 (en) |
DE (1) | DE3761064D1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10137676B4 (en) * | 2001-08-01 | 2007-08-23 | Infineon Technologies Ag | ZVS bridge circuit for relieved switching |
JP4751573B2 (en) * | 2003-12-12 | 2011-08-17 | シチズンホールディングス株式会社 | Analog electronic clock |
DE102004040052A1 (en) * | 2004-08-18 | 2006-06-01 | Siemens Ag | Current controlled converter and method for controlling the same |
US7598517B2 (en) * | 2006-08-25 | 2009-10-06 | Freescale Semiconductor, Inc. | Superjunction trench device and method |
RU2729322C1 (en) * | 2019-10-21 | 2020-08-06 | Федеральное государственное унитарное предприятие "Научно-производственный центр автоматики и приборостроения имени академика Н.А. Пилюгина" (ФГУП "НПЦАП") | Device for stepper motor control |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS561799A (en) * | 1979-06-19 | 1981-01-09 | Seiko Instr & Electronics Ltd | Circuit for sensing rotation of electronic clock motor |
US4467255A (en) * | 1979-07-09 | 1984-08-21 | Societe Suisse Pour L'industrie Horlogere Management Services S.A. | Position detector for a stepping motor |
EP0128865A1 (en) * | 1983-05-24 | 1984-12-19 | Société industrielle de Sonceboz S.A. | Method to improve dumping during the stoppage of a polyphase motor, particularly a step motor, and apparatus for carrying out the method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5412865A (en) * | 1977-06-30 | 1979-01-30 | Seiko Epson Corp | Electronic wristwatch |
JPS5619473A (en) * | 1979-07-27 | 1981-02-24 | Citizen Watch Co Ltd | Electronic timepiece |
-
1986
- 1986-06-26 CH CH258586A patent/CH665084GA3/fr not_active IP Right Cessation
-
1987
- 1987-05-22 US US07/053,201 patent/US4754210A/en not_active Expired - Lifetime
- 1987-05-25 DE DE8787107571T patent/DE3761064D1/en not_active Expired - Lifetime
- 1987-05-25 EP EP87107571A patent/EP0250862B1/en not_active Expired
- 1987-06-25 JP JP62156700A patent/JP2655645B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS561799A (en) * | 1979-06-19 | 1981-01-09 | Seiko Instr & Electronics Ltd | Circuit for sensing rotation of electronic clock motor |
US4467255A (en) * | 1979-07-09 | 1984-08-21 | Societe Suisse Pour L'industrie Horlogere Management Services S.A. | Position detector for a stepping motor |
EP0128865A1 (en) * | 1983-05-24 | 1984-12-19 | Société industrielle de Sonceboz S.A. | Method to improve dumping during the stoppage of a polyphase motor, particularly a step motor, and apparatus for carrying out the method |
Non-Patent Citations (2)
Title |
---|
10ème CONGRES INTERNATIONAL DE CHRONOMETRIE, no. 3, septembre 1979, pages 53-59, B}ren, CH; J.-L. BEGUIN: "Générateur de signaux programmables" * |
PATENT ABSTRACTS OF JAPAN, vol. 5, no. 51 (E-51)[723], 10 avril 1981; & JP-A-56 1799 (DAINI SEIKOSHA K.K.) 09-01-1981 * |
Also Published As
Publication number | Publication date |
---|---|
US4754210A (en) | 1988-06-28 |
JP2655645B2 (en) | 1997-09-24 |
DE3761064D1 (en) | 1990-01-04 |
JPS637199A (en) | 1988-01-13 |
EP0250862B1 (en) | 1989-11-29 |
EP0250862A1 (en) | 1988-01-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |