JPH01162800U - - Google Patents
Info
- Publication number
- JPH01162800U JPH01162800U JP5672988U JP5672988U JPH01162800U JP H01162800 U JPH01162800 U JP H01162800U JP 5672988 U JP5672988 U JP 5672988U JP 5672988 U JP5672988 U JP 5672988U JP H01162800 U JPH01162800 U JP H01162800U
- Authority
- JP
- Japan
- Prior art keywords
- pulse
- step motor
- rotation
- pulse width
- drive
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Electromechanical Clocks (AREA)
- Control Of Stepping Motors (AREA)
Description
第１図は本考案の一実施例の回路構成を示す図
、第２図は第１図に示す各駆動パルス発生回路か
ら送出される駆動パルスのパルス幅を示す図、第
３図は上記実施例の動作を示すフローチヤート、
第４図は第１図に示す駆動コイルに印加されるパ
ルスおよび同図の回転検出回路からの非回転検出
信号のタイムチヤートである。
１……ＣＰＵ、２……マイクロプログラム記憶
用ＲＯＭ、３……１Ｈｚ信号発生部、３ａ……発
振回路、３ｂ……分周回路、４……回転検出回路
、５……駆動パルス送出部、５ａ，５ｂ，５ｃ，
５ｄ，５ｅ，５ｆ……駆動パルス発生回路、５ｘ
……オアゲート、６……ＲＡＭ、１１……駆動コ
イル、Ｉ，Ｎ，ｎ……レジスタ、Ｍ……極性指定
フラグ。
FIG. 1 is a diagram showing the circuit configuration of an embodiment of the present invention, FIG. 2 is a diagram showing the pulse width of the drive pulses sent out from each drive pulse generation circuit shown in FIG. 1, and FIG. A flowchart showing the example in action,
FIG. 4 is a time chart of pulses applied to the drive coil shown in FIG. 1 and a non-rotation detection signal from the rotation detection circuit shown in the same figure. 1... CPU, 2... ROM for microprogram storage, 3... 1Hz signal generation unit, 3a... oscillation circuit, 3b... frequency dividing circuit, 4... rotation detection circuit, 5... drive pulse sending unit, 5a, 5b, 5c,
5d, 5e, 5f...drive pulse generation circuit, 5x
...OR gate, 6...RAM, 11...drive coil, I, N, n...register, M...polarity designation flag.
Claims (1)
期でステツプモータに供給する駆動パルス供給手
段と、 この駆動パルス供給手段が駆動パルスを供給し
た際にステツプモータが回転したか否かを検出す
る検出手段と、 この検出手段で非回転が検出された回数を記憶
する非回転回数記憶手段と、 前記検出手段で非回転が検出された際に前記駆
動パルス供給手段により供給されるパルスの幅を
大に設定するパルス幅可変手段と、 前記検出手段で回転が検出された際に前記非回
転回数記憶手段に非回転の数が記憶されていた場
合、設定されているパルス幅と同一パルス幅の補
正パルスを前記ステツプモータに供給する補正パ
ルス供給手段とを備えることを特徴とする指針式
電子時計のステツプモータ駆動回路。[Scope of Claim for Utility Model Registration] Drive pulse supply means that supplies drive pulses with a set pulse width to a step motor at a constant cycle, and when the drive pulse supply means supplies drive pulses, the step motor rotates. a non-rotation count storage means for storing the number of times non-rotation has been detected by the detection means; pulse width variable means for setting a large width of a pulse to be generated; and if the number of non-rotations is stored in the non-rotation number storage means when the rotation is detected by the detection means, the set pulse width is increased; A step motor drive circuit for a pointer-type electronic timepiece, comprising correction pulse supply means for supplying a correction pulse having the same pulse width as the step motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988056729U JP2503423Y2 (en) | 1988-04-28 | 1988-04-28 | Step motor drive circuit for pointer-type electronic timepieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988056729U JP2503423Y2 (en) | 1988-04-28 | 1988-04-28 | Step motor drive circuit for pointer-type electronic timepieces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01162800U true JPH01162800U (en) | 1989-11-13 |
| JP2503423Y2 JP2503423Y2 (en) | 1996-07-03 |
Family
ID=31282599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988056729U Expired - Lifetime JP2503423Y2 (en) | 1988-04-28 | 1988-04-28 | Step motor drive circuit for pointer-type electronic timepieces |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2503423Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5428176A (en) * | 1977-08-04 | 1979-03-02 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS5712382A (en) * | 1980-06-25 | 1982-01-22 | Seiko Instr & Electronics Ltd | Analog electronic timepiece |
| JPS6260033A (en) * | 1985-09-10 | 1987-03-16 | Fujitsu Ltd | Microprocessor control system |
-
1988
- 1988-04-28 JP JP1988056729U patent/JP2503423Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5428176A (en) * | 1977-08-04 | 1979-03-02 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS5712382A (en) * | 1980-06-25 | 1982-01-22 | Seiko Instr & Electronics Ltd | Analog electronic timepiece |
| JPS6260033A (en) * | 1985-09-10 | 1987-03-16 | Fujitsu Ltd | Microprocessor control system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2503423Y2 (en) | 1996-07-03 |
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