JPH0257088U - - Google Patents
Info
- Publication number
- JPH0257088U JPH0257088U JP13660988U JP13660988U JPH0257088U JP H0257088 U JPH0257088 U JP H0257088U JP 13660988 U JP13660988 U JP 13660988U JP 13660988 U JP13660988 U JP 13660988U JP H0257088 U JPH0257088 U JP H0257088U
- Authority
- JP
- Japan
- Prior art keywords
- current
- detection means
- same direction
- rotor
- coil
- 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 6
- 238000010586 diagram Methods 0.000 description 5
- 239000010687 lubricating oil Substances 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を示すブロツク図。
第２図は第１図のモータ駆動信号形成回路４で形
成される信号のタイミングチヤート。第３図はＳ
Ｐ１およびＳＰ２の具体的構成例を示す回路図。
第４図は第３図のタイミングチヤート。第５図は
第１図の出力デコーダー５で形成される信号のタ
イミングチヤート。第６図は第１図のモータドラ
イバー及び検出回路６の具体的構成例を示す回路
図。第７図はコイルに駆動パルスを印加したとき
の電流波形図。第８図は潤滑油が劣化時にコイル
に駆動パルスを印加したときの電流波形図。
１……発振回路、２……分周回路、３……アツ
プダウンカウンター、４……モータ駆動信号形成
回路、５……出力デコーダー、６……モータドラ
イバー及び検出回路、７……表示機構。
FIG. 1 is a block diagram showing one embodiment of the present invention.
FIG. 2 is a timing chart of signals generated by the motor drive signal forming circuit 4 of FIG. 1. Figure 3 shows S
FIG. 3 is a circuit diagram showing a specific configuration example of P1 and SP2.
Figure 4 is a timing chart of Figure 3. FIG. 5 is a timing chart of signals generated by the output decoder 5 of FIG. 1. FIG. 6 is a circuit diagram showing a specific example of the configuration of the motor driver and detection circuit 6 shown in FIG. 1. FIG. 7 is a current waveform diagram when a driving pulse is applied to the coil. FIG. 8 is a current waveform diagram when a driving pulse is applied to the coil when the lubricating oil is deteriorated. DESCRIPTION OF SYMBOLS 1... Oscillation circuit, 2... Frequency division circuit, 3... Up-down counter, 4... Motor drive signal forming circuit, 5... Output decoder, 6... Motor driver and detection circuit, 7... Display mechanism.
Claims (1)
ータを有し、駆動パルス出力後にロータの自由振
動によりコイルに誘起される電流を電圧値に変換
し電圧値の大小によつてロータの回転検出を行な
うアナログ電子時計において、前記の誘起電流の
うち駆動電流と同方向に流れる電流を同方向電流
、逆方向に流れる電流を逆方向電流と呼ぶとき、
同方向電流を検出する第１の検出手段と逆方向電
流を検出する第２の検出手段を有し、第１の検出
手段により同方向電流を検出した後で第２の検出
手段を動作させ逆方向電流を検出するように構成
したことを特徴とするアナログ電子時計。 An analog electronic clock that has a step motor consisting of a rotor, stator, and coil, converts the current induced in the coil by the free vibration of the rotor into a voltage value after outputting a drive pulse, and detects the rotation of the rotor based on the magnitude of the voltage value. Among the induced currents, when the current flowing in the same direction as the drive current is called the same direction current, and the current flowing in the opposite direction is called the reverse direction current,
It has a first detection means for detecting a current in the same direction and a second detection means for detecting a current in the opposite direction, and after the first detection means detects the current in the same direction, the second detection means is operated to detect An analog electronic watch characterized by being configured to detect directional current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13660988U JPH0729512Y2 (en) | 1988-10-19 | 1988-10-19 | Analog electronic clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13660988U JPH0729512Y2 (en) | 1988-10-19 | 1988-10-19 | Analog electronic clock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0257088U true JPH0257088U (en) | 1990-04-25 |
| JPH0729512Y2 JPH0729512Y2 (en) | 1995-07-05 |
Family
ID=31397277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13660988U Expired - Lifetime JPH0729512Y2 (en) | 1988-10-19 | 1988-10-19 | Analog electronic clock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729512Y2 (en) |
-
1988
- 1988-10-19 JP JP13660988U patent/JPH0729512Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0729512Y2 (en) | 1995-07-05 |
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