CH633939GA3 - - Google Patents
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- Publication number
- CH633939GA3 CH633939GA3 CH1205477A CH1205477A CH633939GA3 CH 633939G A3 CH633939G A3 CH 633939GA3 CH 1205477 A CH1205477 A CH 1205477A CH 1205477 A CH1205477 A CH 1205477A CH 633939G A3 CH633939G A3 CH 633939GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- load detection
- step motor
- driving
- load
- load condition
- 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
- G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Stepping Motors (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
- Sorption Type Refrigeration Machines (AREA)
- Materials For Photolithography (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
A step motor driving control mechanism for use in an electronic timepiece for reducing the current consumption thereof is provided. Load detection circuitry detects the load condition of the step motor and selectively produces a load condition signal representative of a predetermined load condition thereof. Driving and control circuitry is provided for receiving a low frequency timekeeping signal produced by a divider circuit and a load detection signal when same is selectively produced by the load detection circuitry. In response to the presence or absence of a load detection signal applied thereto, the drive and control circuitry is adapted to vary the duration of the pulse width of a drive signal applied to the step motor to effect a driving of same.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12014676A JPS5345575A (en) | 1976-10-06 | 1976-10-06 | Electronic wristwatch |
Publications (2)
Publication Number | Publication Date |
---|---|
CH633939B CH633939B (en) | |
CH633939GA3 true CH633939GA3 (en) | 1983-01-14 |
Family
ID=14779094
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1205477A CH633939B (en) | 1976-10-06 | 1977-10-03 | ELECTRONIC WRISTWATCH. |
CH432182A CH640387B (en) | 1976-10-06 | 1982-07-15 | METHOD FOR CONTROLLING ENERGY ABSORPTION IN AN ELECTRONIC WATCH AND ELECTRONIC CIRCUIT FOR CARRYING OUT THE METHOD. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH432182A CH640387B (en) | 1976-10-06 | 1982-07-15 | METHOD FOR CONTROLLING ENERGY ABSORPTION IN AN ELECTRONIC WATCH AND ELECTRONIC CIRCUIT FOR CARRYING OUT THE METHOD. |
Country Status (7)
Country | Link |
---|---|
US (6) | US4212156A (en) |
JP (1) | JPS5345575A (en) |
CH (2) | CH633939B (en) |
DE (2) | DE2759956C1 (en) |
GB (1) | GB1557408A (en) |
HK (1) | HK9481A (en) |
MY (1) | MY8100338A (en) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5345575A (en) * | 1976-10-06 | 1978-04-24 | Seiko Epson Corp | Electronic wristwatch |
JPS53114467A (en) * | 1977-03-16 | 1978-10-05 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS53132382A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS53132381A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS53132380A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS53132384A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS5477169A (en) * | 1977-12-02 | 1979-06-20 | Seiko Instr & Electronics Ltd | Electronic watch |
CH625384B (en) * | 1977-12-20 | Ebauches Electroniques Sa | STEP MOTOR NON-ROTATION DETECTION DEVICE FOR CLOCKWORK PART AND LOST STEPS CATCHING UP. | |
CH616045B (en) * | 1978-06-20 | Ebauches Sa | PROCESS FOR REDUCING THE CONSUMPTION OF AN ELECTRONIC WATCH PART AND ELECTRONIC WATCH PART IMPLEMENTING THIS PROCESS. | |
JPS5515054A (en) * | 1978-07-19 | 1980-02-01 | Seiko Instr & Electronics Ltd | Electronic watch |
JPS5921493B2 (en) * | 1978-09-12 | 1984-05-21 | セイコーインスツルメンツ株式会社 | Watch gear train load measuring device |
US4283783A (en) * | 1978-11-28 | 1981-08-11 | Citizen Watch Company Limited | Drive control system for stepping motor |
US4321521A (en) * | 1978-12-25 | 1982-03-23 | Kabushiki Kaisha Daini Seikosha | Detection device of electronic timepiece |
US4351039A (en) * | 1979-01-08 | 1982-09-21 | Jean-Claude Berney | Timepiece with a detector and control circuit for a stepping motor |
JPS55147381A (en) * | 1979-05-04 | 1980-11-17 | Seiko Instr & Electronics Ltd | Detector for electronic watch |
FR2459579A1 (en) * | 1979-06-21 | 1981-01-09 | Suisse Horlogerie | ADVANCE DETECTOR OF A STEP BY STEP MOTOR |
FR2461399A1 (en) * | 1979-07-09 | 1981-01-30 | Suisse Horlogerie | POSITION DETECTOR OF A STEP BY STEP MOTOR |
JPS5643575A (en) * | 1979-09-18 | 1981-04-22 | Seiko Instr & Electronics Ltd | Electronic clock |
DE2944872C2 (en) * | 1979-11-07 | 1981-11-19 | Gebrüder Junghans GmbH, 7230 Schramberg | Arrangement for controlling a stepper motor for battery-operated devices |
CH641921B (en) * | 1980-02-19 | Berney Sa Jean Claude | WATCH PART WITH A STEP MOTOR CONTROL DEVICE. | |
JPS56164984A (en) * | 1980-05-23 | 1981-12-18 | Seiko Instr & Electronics Ltd | Electronic watch |
DE3428751A1 (en) * | 1984-08-03 | 1986-02-13 | EUROSIL electronic GmbH, 8057 Eching | Method and circuit arrangement for controlling the running of a stepping motor |
JPS6258189A (en) * | 1985-09-09 | 1987-03-13 | Seiko Instr & Electronics Ltd | Dc magnetic field detecting analogue electronic timepiece |
CH671135GA3 (en) * | 1987-12-11 | 1989-08-15 | Control method for stepper motor - using magnetic field detector allowing compensation for ambient magnetic field by adjusting drive pulses | |
US4851755A (en) * | 1988-03-01 | 1989-07-25 | Ampex Corporation | Low power stepper motor drive system and method |
US5010282A (en) * | 1989-05-11 | 1991-04-23 | Eastman Kodak Company | Method and apparatus for driving a DC motor |
FR2668866B1 (en) * | 1990-11-07 | 1992-12-31 | Ebauchesfabrik Eta Ag | METHOD FOR CONTROLLING A STEPPER MOTOR AND DEVICE FOR CARRYING OUT SAID METHOD. |
US5550795A (en) * | 1993-01-18 | 1996-08-27 | Seiko Instruments Inc. | Electronic timepiece and a method of driving a stepping motor of electronic timepiece |
JP3256342B2 (en) * | 1993-08-04 | 2002-02-12 | ティーアールダブリュ オートモーティブ ジャパン株式会社 | Stepping motor step-out detection device |
JPH08251992A (en) * | 1995-03-15 | 1996-09-27 | Alps Electric Co Ltd | Driver of stepping motor |
US5706888A (en) * | 1995-06-16 | 1998-01-13 | Geofurnace Systems, Inc. | Geothermal heat exchanger and heat pump circuit |
EP0764894B1 (en) * | 1995-09-20 | 2002-05-29 | Citizen Watch Co., Ltd. | Electronic watch |
DE69600215T2 (en) * | 1996-02-13 | 1998-10-08 | Detra Sa | Method and device for controlling a single-phase stepper motor |
WO1998041906A1 (en) * | 1997-03-17 | 1998-09-24 | Citizen Watch Co., Ltd. | Electronic watch provided with generator |
EP0982846B1 (en) * | 1998-08-25 | 2011-10-19 | ETA SA Manufacture Horlogère Suisse | Process and device for controlling a stepper motor |
JP2006226927A (en) * | 2005-02-21 | 2006-08-31 | Seiko Instruments Inc | Step motor drive unit and analog electronic timepiece |
US8218014B2 (en) * | 2009-07-30 | 2012-07-10 | Microvision, Inc. | Electromagnetic scanner having variable coil width |
JP5711910B2 (en) * | 2010-07-29 | 2015-05-07 | セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー | Motor drive circuit |
KR101350631B1 (en) * | 2012-10-31 | 2014-01-13 | 삼성전기주식회사 | Motor driving device, and method for driving motor |
JP2015061467A (en) * | 2013-09-20 | 2015-03-30 | カシオ計算機株式会社 | Stepping motor and clock |
ES2934213T3 (en) * | 2015-06-05 | 2023-02-20 | Gogoro Inc | Systems and methods for vehicle load detection and response |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1279058A (en) * | 1970-01-28 | 1972-06-21 | Seiko Instr & Electronics | Timepiece |
US3699762A (en) * | 1971-04-05 | 1972-10-24 | Timex Corp | Synchronized contact watch |
US3855751A (en) * | 1971-05-17 | 1974-12-24 | B Struthers | Building block |
JPS5319944B2 (en) * | 1971-09-25 | 1978-06-23 | ||
JPS5542356B2 (en) * | 1972-12-22 | 1980-10-30 | ||
JPS6024680B2 (en) * | 1973-03-07 | 1985-06-14 | セイコーインスツルメンツ株式会社 | Clock step motor drive circuit |
JPS50120373A (en) * | 1974-03-05 | 1975-09-20 | ||
JPS5292560A (en) * | 1976-01-29 | 1977-08-04 | Seiko Instr & Electronics Ltd | Switch box drive pulse width control circuit for electronic clocks |
US4032827A (en) * | 1976-03-15 | 1977-06-28 | Timex Corporation | Driver circuit arrangement for a stepping motor |
JPS5345575A (en) * | 1976-10-06 | 1978-04-24 | Seiko Epson Corp | Electronic wristwatch |
-
1976
- 1976-10-06 JP JP12014676A patent/JPS5345575A/en active Granted
-
1977
- 1977-10-03 CH CH1205477A patent/CH633939B/en unknown
- 1977-10-05 GB GB41441/77A patent/GB1557408A/en not_active Expired
- 1977-10-06 US US05/839,867 patent/US4212156A/en not_active Expired - Lifetime
- 1977-10-06 DE DE2759956A patent/DE2759956C1/en not_active Expired
- 1977-10-06 DE DE2745052A patent/DE2745052C2/en not_active Expired
-
1980
- 1980-03-24 US US06/133,046 patent/US4370065A/en not_active Expired - Lifetime
-
1981
- 1981-03-12 HK HK94/81A patent/HK9481A/en not_active IP Right Cessation
- 1981-12-30 MY MY338/81A patent/MY8100338A/en unknown
-
1982
- 1982-07-15 CH CH432182A patent/CH640387B/en unknown
- 1982-09-30 US US06/430,292 patent/US4522507A/en not_active Expired - Lifetime
-
1985
- 1985-06-10 US US06/742,832 patent/US4599005A/en not_active Expired - Lifetime
-
1986
- 1986-06-25 US US06/860,404 patent/US4715725A/en not_active Expired - Lifetime
-
1990
- 1990-10-01 US US07/593,358 patent/US5038329A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CH640387GA3 (en) | 1984-01-13 |
CH640387B (en) | |
US4599005A (en) | 1986-07-08 |
US4715725A (en) | 1987-12-29 |
HK9481A (en) | 1981-03-20 |
DE2759956C1 (en) | 1990-08-02 |
DE2745052A1 (en) | 1978-04-20 |
JPS6217198B2 (en) | 1987-04-16 |
US4212156A (en) | 1980-07-15 |
GB1557408A (en) | 1979-12-12 |
MY8100338A (en) | 1981-12-31 |
US5038329A (en) | 1991-08-06 |
US4522507A (en) | 1985-06-11 |
JPS5345575A (en) | 1978-04-24 |
US4370065A (en) | 1983-01-25 |
DE2745052C2 (en) | 1982-04-15 |
CH633939B (en) |
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