DE3120508C2 - - Google Patents
Info
- Publication number
- DE3120508C2 DE3120508C2 DE3120508A DE3120508A DE3120508C2 DE 3120508 C2 DE3120508 C2 DE 3120508C2 DE 3120508 A DE3120508 A DE 3120508A DE 3120508 A DE3120508 A DE 3120508A DE 3120508 C2 DE3120508 C2 DE 3120508C2
- Authority
- DE
- Germany
- Prior art keywords
- pulse
- rotor
- drive
- excitation
- circuit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 230000005284 excitation Effects 0.000 claims description 19
- 230000005281 excited state Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 229910000108 silver(I,III) oxide Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 description 17
- 230000037007 arousal Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- 239000000872 buffer Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
-
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6845080A JPS56164984A (en) | 1980-05-23 | 1980-05-23 | Electronic watch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3120508A1 DE3120508A1 (de) | 1982-03-25 |
| DE3120508C2 true DE3120508C2 (OSRAM) | 1989-05-18 |
Family
ID=13374046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813120508 Granted DE3120508A1 (de) | 1980-05-23 | 1981-05-22 | Elektronische uhr |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4479723A (OSRAM) |
| JP (1) | JPS56164984A (OSRAM) |
| DE (1) | DE3120508A1 (OSRAM) |
| FR (1) | FR2483097B1 (OSRAM) |
| GB (1) | GB2076566B (OSRAM) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2529032A1 (fr) * | 1982-06-21 | 1983-12-23 | Omega Brandt & Freres Sa Louis | Procede d'alimentation d'un moteur pas a pas monophase pour piece d'horlogerie |
| CH648723GA3 (OSRAM) * | 1982-09-10 | 1985-04-15 | ||
| JPS59155072A (ja) * | 1983-02-23 | 1984-09-04 | Canon Inc | 印字装置 |
| GB2156172B (en) * | 1984-03-19 | 1988-11-02 | Westinghouse Electric Corp | Stepper motor torque control apparatus and method |
| JPS61266096A (ja) * | 1985-05-17 | 1986-11-25 | Canon Inc | ステツピングモ−タの制御方式 |
| US4912692A (en) * | 1988-09-29 | 1990-03-27 | Timex Corporation | High rate, bidirectional drive for a bipole stepping motor watch |
| GB2264405B (en) * | 1992-02-12 | 1996-06-12 | Mars Inc | Stepper motor drive circuit |
| RU2078366C1 (ru) * | 1992-05-25 | 1997-04-27 | Акционерное общество "1-й Московский часовой завод" | Механизм электронных часов |
| JPH0767381A (ja) * | 1993-08-25 | 1995-03-10 | Toshiba Corp | 直流ブラシレスモータの駆動制御装置および駆動方法 |
| DE69403625T2 (de) * | 1994-03-17 | 1997-12-18 | Detra Sa | Verfahren zur Versorgung eines einphasigen Schrittmotors sowie Schaltung hierfür |
| GB2305313B (en) * | 1995-09-14 | 1999-11-03 | Switched Reluctance Drives Ltd | Reduced noise controller for a swiched reluctance machine using active noise cancellation |
| US6359840B1 (en) * | 1999-06-01 | 2002-03-19 | James W. Freese | Microcontroller regulated quartz clock |
| JP2002048880A (ja) * | 2000-07-31 | 2002-02-15 | Rhythm Watch Co Ltd | 時計用ステップモータの駆動方法 |
| JP2002341065A (ja) * | 2001-05-21 | 2002-11-27 | Seiko Instruments Inc | アナログ電子時計 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2817648A1 (de) * | 1977-04-23 | 1978-10-26 | Seiko Instr & Electronics | Elektronische uhr |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2359142C2 (de) * | 1973-11-28 | 1982-04-22 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Elektrische Uhr mit Schrittmotor |
| JPS5296066A (en) * | 1976-02-09 | 1977-08-12 | Seiko Epson Corp | Electronic wrist watch |
| JPS5345575A (en) * | 1976-10-06 | 1978-04-24 | Seiko Epson Corp | Electronic wristwatch |
| JPS53132385A (en) * | 1977-04-23 | 1978-11-18 | Seiko Instr & Electronics Ltd | Electronic watch |
| US4179118A (en) * | 1977-09-08 | 1979-12-18 | Minnesota Mining And Manufacturing Company | Apparatus and method for releasably securing sheet material to the drum of a drum-type facsimile machine |
| GB2006995B (en) * | 1977-09-26 | 1982-11-17 | Citizen Watch Co Ltd | Drive system for pulse motor |
| JPS5448581A (en) * | 1977-09-26 | 1979-04-17 | Citizen Watch Co Ltd | Pulse motor driving circuit for electronic watches |
| DE2749141A1 (de) * | 1977-11-03 | 1979-05-10 | Quarz Zeit Ag | Elektrische uhr |
| JPS5921493B2 (ja) * | 1978-09-12 | 1984-05-21 | セイコーインスツルメンツ株式会社 | 時計の輪列負荷測定器 |
| JPS5570773A (en) * | 1978-11-22 | 1980-05-28 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS5619473A (en) * | 1979-07-27 | 1981-02-24 | Citizen Watch Co Ltd | Electronic timepiece |
-
1980
- 1980-05-23 JP JP6845080A patent/JPS56164984A/ja active Granted
-
1981
- 1981-04-15 GB GB8111935A patent/GB2076566B/en not_active Expired
- 1981-05-22 US US06/266,213 patent/US4479723A/en not_active Expired - Lifetime
- 1981-05-22 DE DE19813120508 patent/DE3120508A1/de active Granted
- 1981-05-22 FR FR8110241A patent/FR2483097B1/fr not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2817648A1 (de) * | 1977-04-23 | 1978-10-26 | Seiko Instr & Electronics | Elektronische uhr |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2483097A1 (fr) | 1981-11-27 |
| JPS649597B2 (OSRAM) | 1989-02-17 |
| DE3120508A1 (de) | 1982-03-25 |
| JPS56164984A (en) | 1981-12-18 |
| US4479723A (en) | 1984-10-30 |
| GB2076566A (en) | 1981-12-02 |
| GB2076566B (en) | 1984-04-04 |
| FR2483097B1 (fr) | 1986-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8127 | New person/name/address of the applicant |
Owner name: SEIKO INSTRUMENTS AND ELECTRONICS LTD., TOKIO, JP |
|
| 8110 | Request for examination paragraph 44 | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8331 | Complete revocation |