JP3120204B2 - Electronic control clock - Google Patents
Electronic control clockInfo
- Publication number
- JP3120204B2 JP3120204B2 JP06172810A JP17281094A JP3120204B2 JP 3120204 B2 JP3120204 B2 JP 3120204B2 JP 06172810 A JP06172810 A JP 06172810A JP 17281094 A JP17281094 A JP 17281094A JP 3120204 B2 JP3120204 B2 JP 3120204B2
- Authority
- JP
- Japan
- Prior art keywords
- generator
- circuit
- smoothing capacitor
- electric
- control 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 - Lifetime
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、ゼンマイが開放する時
の機械エネルギで回転する指針と、機械エネルギを電気
エネルギに変換する発電機と、電気エネルギを蓄える平
滑用コンデンサと、電磁ブレーキを可変制御する制御回
路を有するウォッチに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pointer which rotates with mechanical energy when a spring is released, a generator for converting mechanical energy into electric energy, a smoothing capacitor for storing electric energy, and a variable electromagnetic brake. The present invention relates to a watch having a control circuit for controlling.
【０００２】[0002]
【従来の技術】図３に示すように、ゼンマイ１が保有す
る機械的エネルギを駆動源として、増速輪列２を介して
指針１２の運針と発電機３の回転を可能にするととも
に、発電機３の回転で誘起した起電力を平滑用コンデン
サ４に一時的に蓄え、蓄電力で電気的集積回路（制御回
路５と分周回路６と発振回路７演算回路８と検出回路９
を含む：以下ＩＣと称す）と水晶振動子１０を駆動し、
発電機３のコイルに流れる電流量（図中の破線）を制御
回路５に設けたスイッチの切換で調整し、電流によって
生じる電磁ブレーキを可変して指針１２と発電機３の回
転周期を調速する電子制御時計として、特開昭５９−１
３５３８８号公報、特開昭５９−１１６０７８号公報に
記載されるものが知られている。2. Description of the Related Art As shown in FIG. 3, the mechanical energy held by a mainspring 1 is used as a drive source to enable the movement of a pointer 12 and the rotation of a generator 3 through a speed-increasing wheel train 2, and to generate electric power. The electromotive force induced by the rotation of the machine 3 is temporarily stored in the smoothing capacitor 4 and stored in the electric integrated circuit (the control circuit 5, the frequency dividing circuit 6, the oscillating circuit 7, the arithmetic circuit 8, the detecting circuit 9
And the crystal oscillator 10 is driven,
The amount of current flowing in the coil of the generator 3 (broken line in the figure) is adjusted by switching a switch provided in the control circuit 5, and the electromagnetic brake generated by the current is varied to regulate the rotation cycle of the pointer 12 and the generator 3. Japanese Patent Application Laid-Open No. Sho 59-1
No. 35388 and JP-A-59-116078 are known.
【０００３】まず、上記２つの公報に開示されている技
術内容のうち、電子制御時計における発電機の回転周期
を制御する概念について、図４のブロック図を用いて説
明する。発電機３で誘起した起電力を平滑用コンデンサ
４に蓄え、平滑用コンデンサ４が所定の電圧（例えば１
Ｖ）を越えると発振回路７は水晶振動子１０を駆動し
て、分周回路６にクロック信号Ｓ１を送る。First, of the technical contents disclosed in the above two publications, the concept of controlling the rotation cycle of a generator in an electronically controlled timepiece will be described with reference to the block diagram of FIG. The electromotive force induced by the generator 3 is stored in the smoothing capacitor 4, and the smoothing capacitor 4 outputs a predetermined voltage (for example, 1).
When V exceeds V), the oscillation circuit 7 drives the crystal oscillator 10 and sends the clock signal S1 to the frequency dividing circuit 6.
【０００４】分周回路６はクロック信号Ｓ１を元に時刻
信号Ｓ２を生成する。検出回路９は、発電機３の回転周
期と同期して誘起する誘起電圧を検出して検出信号Ｓ３
を生成する。演算回路８には、分周回路６の時刻信号Ｓ
２と検出回路９の検出信号Ｓ３が入力され、２つの信号
を比較して制御信号Ｓ４を生成する。The frequency dividing circuit 6 generates a time signal S2 based on the clock signal S1. The detection circuit 9 detects an induced voltage induced in synchronization with the rotation cycle of the generator 3 and detects a detection signal S3
Generate The arithmetic circuit 8 includes a time signal S of the frequency dividing circuit 6.
2 and the detection signal S3 of the detection circuit 9 are inputted, and the two signals are compared to generate a control signal S4.
【０００５】演算回路８で生成した制御信号Ｓ４は制御
回路５に入力され、制御信号を元に制御回路５に設けた
スイッチ素子のＯＮ／ＯＦＦを行う。そして、スイッチ
素子のＯＮ／ＯＦＦにより電磁ブレーキ量を調節して、
発電機３の回転周期を調速する。その結果、指針１２は
一定の回転周期数で運針するのである。The control signal S4 generated by the arithmetic circuit 8 is input to the control circuit 5, and turns on / off a switch element provided in the control circuit 5 based on the control signal. Then, the electromagnetic brake amount is adjusted by ON / OFF of the switch element,
The rotation period of the generator 3 is adjusted. As a result, the hands 12 move at a constant number of rotation cycles.
【０００６】電子制御時計の調速原理について簡単に説
明する。発電機に加えた動力（入力エネルギ）に対し
て、エネルギ変換をおこない、発電機が保有する運動エ
ネルギを減少（誘起した起電力分減少する）させ、発電
機の回転周期が長くなるようにするのが、このウォッチ
で用いた調速概念である。[0006] The principle of governing the speed of an electronically controlled timepiece will be briefly described. The power (input energy) applied to the generator is converted into energy to reduce the kinetic energy held by the generator (reduce by the induced electromotive force) so that the rotation cycle of the generator becomes longer. That is the concept of governing used in this watch.
【０００７】そして、ゼンマイと発電機の間に生じるエ
ネルギの変換は、以下の状態で起こる。ゼンマイを巻き
込むと、角度当たりのポテンシャルエネルギ（機械エネ
ルギ）が蓄積され、ゼンマイがほどけることで、輪列を
回転する機械エネルギ（駆動力）となる。この駆動力は
輪列を介して伝達され、発電機が回転する。このとき、
発電機のコイルには電磁誘導現象により起電圧が生じ
る。そして、コイルの両端に電気的閉ループを形成する
ことでコイルに誘起電流が流れ、誘起電流と起電圧の積
が発電機に誘起する電気エネルギ（起電力）となる。上
記のように発電機が回転してコイルに誘起電流が流れれ
ば、機械エネルギから電気エネルギへのエネルギ変換が
起こるのである。[0007] The conversion of energy generated between the mainspring and the generator occurs in the following state. When the mainspring is involved, potential energy (mechanical energy) per angle is accumulated, and when the mainspring is released, mechanical energy (driving force) for rotating the wheel train is obtained. This driving force is transmitted via the wheel train, and the generator rotates. At this time,
An electromotive voltage is generated in the coil of the generator by an electromagnetic induction phenomenon. Then, an induced current flows through the coil by forming an electrically closed loop at both ends of the coil, and the product of the induced current and the electromotive voltage becomes electric energy (electromotive force) induced in the generator. If the generator rotates and an induced current flows through the coil as described above, energy conversion from mechanical energy to electrical energy occurs.
【０００８】発電機の回転周期を長くする電磁ブレーキ
について説明する。発電機が回転した時、コイルの両端
に流れる誘起電流によって、発電機の回転方向と逆向き
のトルクが作用する。これが電磁ブレーキであり、ブレ
ーキトルクの大きさにより発電機の回転速度が決まる。An electromagnetic brake for increasing the rotation cycle of the generator will be described. When the generator rotates, a torque in a direction opposite to the rotation direction of the generator acts due to the induced current flowing through both ends of the coil. This is an electromagnetic brake, and the rotation speed of the generator is determined by the magnitude of the brake torque.
【０００９】回転速度が低下すれば発電機の回転周期は
長くなり、回転速度が上昇すれば発電機の回転周期は短
くなる。この電磁ブレーキの可変制御は、コイルの両端
に閉ループを形成する電気的回路で、発電機に生じる起
電力を増減させれば、それに比例して電磁ブレーキも可
変できる。When the rotation speed decreases, the rotation period of the generator increases, and when the rotation speed increases, the rotation period of the generator decreases. This variable control of the electromagnetic brake is an electric circuit that forms a closed loop at both ends of the coil. If the electromotive force generated in the generator is increased or decreased, the electromagnetic brake can also be changed in proportion thereto.
【００１０】電子制御時計に設けた発電機の回転周期を
一定に保つための電磁ブレーキの条件を、図５に示すト
ルクを用いて説明する。まず、この電子制御時計に生じ
るトルクは、大きく分類すると （１）回転数を調速するための電磁ブレーキトルクＴｂ （２）電気的回路で消費される電気エネルギに相当する
発電に必ず必要なトルクＴｇ （３）発電機が一定速度で回転したときに生じる機械的
損失トルクＴｓがある。これらのトルクの総和Ｔｈ＝Ｔ
ｂ＋Ｔｇ＋Ｔｓが、発電機の回転で生じるトルクであ
る。The conditions of the electromagnetic brake for keeping the rotation cycle of the generator provided in the electronic timepiece constant will be described with reference to the torque shown in FIG. First, the torque generated in this electronically controlled timepiece can be roughly classified into (1) an electromagnetic brake torque Tb for regulating the rotational speed, and (2) a torque necessarily required for power generation corresponding to electric energy consumed in an electric circuit. Tg (3) There is a mechanical loss torque Ts that occurs when the generator rotates at a constant speed. The sum of these torques, Th = T
b + Tg + Ts is the torque generated by the rotation of the generator.
【００１１】ところで、ＴｇとＴｓは発電機の回転数を
一定に保った時のトルクである。またコイルに誘起する
起電圧は発電機の回転数で決まる。そのため一定の周期
を必要とする電子制御時計において、ＴｇとＴｓと起電
圧は可変することができない。Incidentally, Tg and Ts are the torques when the rotation speed of the generator is kept constant. The electromotive voltage induced in the coil is determined by the number of revolutions of the generator. Therefore, in an electronically controlled timepiece that requires a constant cycle, Tg, Ts, and the electromotive voltage cannot be varied.
【００１２】電磁ブレーキトルクＴｂは、起電力で決ま
る。発電機の回転数は一定であるため、コイルの両端の
閉ループに流れる誘起電流を可変することで起電力を制
御する。しかし誘起電流の電流量も閉ループ上のインピ
ーダンスで決まるため、無限大でない。The electromagnetic brake torque Tb is determined by the electromotive force. Since the rotation speed of the generator is constant, the electromotive force is controlled by varying the induced current flowing through the closed loop at both ends of the coil. However, the amount of the induced current is not infinite because it is determined by the impedance on the closed loop.
【００１３】従って、発電機の回転で生じるトルクＴｈ
のトルクレンジは、Ｔｈｍｉｎ＜Ｔｈ＜Ｔｈｍａｘとな
る。なお、制御回路上で取り出せる電力が最大の時、電
磁ブレーキの最大値Ｔｂｍａｘが発生し、発電機に生じ
るトルクも最大（Ｔｈｍａｘ）となる。Therefore, the torque Th generated by the rotation of the generator
Is such that Thmin <Th <Thmax. When the electric power that can be taken out on the control circuit is maximum, the maximum value Tbmax of the electromagnetic brake is generated, and the torque generated in the generator is also maximum (Thmax).
【００１４】一方、全く電磁ブレーキをかけない（Ｔｂ
＝０）時、発電機に生じるトルクも最小（Ｔｈｍｉｎ）
となる。ゼンマイトルクＴｚは、ゼンマイを巻き込んだ
時に発生するトルクであり、巻き込みに対応して図５の
実線に示すようなトルクカーブを描く。On the other hand, no electromagnetic brake is applied (Tb
= 0), the torque generated in the generator is also minimum (Thmin)
Becomes The mainspring torque Tz is a torque generated when the mainspring is involved, and draws a torque curve as shown by a solid line in FIG.
【００１５】発電機が定められた回転周期で回転してい
る時に生じるトルクＴｈ（図５の破線）とゼンマイトル
クＴｚの関係と、電磁ブレーキの制御方法を以下に述べ
る。「Ｔｚ＞Ｔｈの場合（区間Ａ）」には、発電機の回
転周期が短くなるため、電磁ブレーキトルクＴｂを増加
して回転周期が長くなるようにする。The relationship between the torque Th (dashed line in FIG. 5) and the mainspring torque Tz generated when the generator rotates at a predetermined rotation period, and a method of controlling the electromagnetic brake will be described below. In the case of “Tz> Th (section A)”, the rotation cycle of the generator becomes short, so the electromagnetic brake torque Tb is increased to make the rotation cycle long.
【００１６】「Ｔｚ＜Ｔｈの場合（区間Ｂ）」には、発
電機の回転周期が長くなるため、電磁ブレーキトルクＴ
ｂを減少して回転周期が短くなるようにする。「Ｔｚ＝
Ｔｈの場合」には、現状の電磁ブレーキ値を維持すれば
よい。このような電磁ブレーキの増減を行うことで、発
電機の回転周期を一定に保つことが可能となり、電子制
御時計に設けた指針の安定した回転周期を維持する。In the case of “Tz <Th (section B)”, the electromagnetic brake torque T
b is reduced so that the rotation cycle is shortened. "Tz =
In the case of “Th”, the current electromagnetic brake value may be maintained. By increasing or decreasing the electromagnetic brake, the rotation cycle of the generator can be kept constant, and a stable rotation cycle of the hands provided in the electronic control clock can be maintained.
【００１７】従って、「Ｔｈｍａｘ＞Ｔｚｍａｘ（ゼン
マイの最大トルク）」の関係を保つことが、電子制御時
計の条件となる。ところで、上記に述べた条件が「Ｔｈ
ｍａｘ＜Ｔｚｍａｘ」となると、電磁ブレーキトルクＴ
ｂｍａｘでの調速制御の限界を越えており、エネルギー
バランスを保つために発電機の回転速度が増加する。そ
の結果、電子制御時計として回転周期が維持できなくな
り、時刻狂いが生じてしまう。Therefore, maintaining the relationship of "Thmax> Tzmax (maximum torque of the mainspring)" is a condition of the electronically controlled timepiece. By the way, the condition described above is "Th
If max <Tzmax, the electromagnetic brake torque T
The limit of the speed control at bmax is exceeded, and the rotation speed of the generator increases to maintain the energy balance. As a result, the rotation cycle cannot be maintained as the electronically controlled timepiece, resulting in time deviation.
【００１８】以上に述べたような調速原理と発電機が一
定の回転周期を保つための条件を持ち合わせる電子制御
時計について開示している前記２つの公報において、図
２に示すように発電機３と平滑用コンデンサ４と制御回
路５（トランスミッションゲート１４及び抵抗素子５１
を含む）は、並列に配置してある。In the two publications which disclose the electronic control timepiece which has the above-described principle of governing and the condition for the generator to maintain a constant rotation cycle, as shown in FIG. , Smoothing capacitor 4 and control circuit 5 (transmission gate 14 and resistance element 51
) Are arranged in parallel.
【００１９】電磁ブレーキを生じるための電気的閉ルー
プは、制御回路に設けたトランスミッションゲート１４
をＯＮ状態にすると、発電機との間に抵抗素子５１を含
む電気的閉ループを形成する。電磁ブレーキトルクの制
御は、トランスミッションゲート１４のＯＮ／ＯＦＦ切
換により、前記閉ループに流れる時間当たりの電流量を
可変している。An electric closed loop for generating an electromagnetic brake is provided by a transmission gate 14 provided in a control circuit.
Is turned on, an electric closed loop including the resistance element 51 is formed between the power supply and the generator. In controlling the electromagnetic brake torque, the amount of current flowing through the closed loop per time is varied by switching ON / OFF of the transmission gate 14.
【００２０】[0020]
【発明が解決しようとする課題】しかしながら、従来の
電子制御時計は以下の課題を有している。第１に、トラ
ンスミッションゲート１４がＯＮ状態の時、平滑用コン
デンサ４と制御回路５の間が電気的閉ループ（図６の破
線で示した経路）となるため、平滑用コンデンサ４に
蓄えた電力（図６に示す経路の電力）を制御回路の抵
抗素子で消費してしまう。However, the conventional electronically controlled timepiece has the following problems. First, when the transmission gate 14 is in the ON state, an electric closed loop (path indicated by a broken line in FIG. 6) is provided between the smoothing capacitor 4 and the control circuit 5, so that the electric power stored in the smoothing capacitor 4 ( The power of the path shown in FIG. 6) is consumed by the resistance element of the control circuit.
【００２１】その結果、図９の破線（ｂ）に示す通りス
イッチＯＮ区間（ｔ１からｔ３）において、平滑用コン
デンサ４の電位が下降してＩＣ動作電圧を下回り、水晶
振動子やＩＣを動作するための電力供給（図６に示す経
路）が出来ず、動作停止に至る。As a result, as shown by the broken line (b) in FIG. 9, in the switch ON period (from t1 to t3), the potential of the smoothing capacitor 4 falls and falls below the IC operating voltage, and the crystal oscillator and IC operate. Power supply (path shown in FIG. 6) cannot be performed, and the operation stops.
【００２２】ＩＣの動作停止によりトランスミッション
ゲート１４のＯＮ／ＯＦＦ切換が実行できず制御不能区
間（ｔ２からｔ４）となるため、発電機に生じる電磁ブ
レーキの可変が行えず、時刻狂いを招くという課題を有
した。第２に、上記の課題を解決するために制御回路５
の抵抗素子を高いインピーダンスに設定すると、電子制
御時計の条件を満足することができなくなる。When the operation of the IC is stopped, the transmission gate 14 cannot be switched ON / OFF, and the section becomes uncontrollable (from t2 to t4). Therefore, the electromagnetic brake generated in the generator cannot be varied, resulting in time deviation. It had. Second, a control circuit 5 for solving the above-mentioned problem.
If the resistance element is set to a high impedance, the condition of the electronically controlled watch cannot be satisfied.
【００２３】つまり、トランスミッションゲート１４が
ＯＮ状態の時、平滑用コンデンサ４の電力消費を防止す
るために制御回路５に高いインピーダンスを設けると、
平滑用コンデンサ４の電力消費量（図６の破線で示す経
路での電力消費）を押さえることができる。しかし、
発電機３と制御回路５で形成した電気的閉ループに流れ
る電流（図６に示す経路の電流）は小さくなり、発電
機３の回転数を調速するための電磁ブレーキトルクを確
保できず、発電機３の回転周期が早まり、指針の時刻狂
いが生じてしまう。That is, when the transmission gate 14 is in the ON state, if the control circuit 5 is provided with a high impedance in order to prevent power consumption of the smoothing capacitor 4,
The power consumption of the smoothing capacitor 4 (the power consumption along the path shown by the broken line in FIG. 6) can be suppressed. But,
The current flowing through the electrically closed loop formed by the generator 3 and the control circuit 5 (the current in the path shown in FIG. 6) becomes smaller, and the electromagnetic brake torque for regulating the rotation speed of the generator 3 cannot be secured. The rotation cycle of the machine 3 is advanced, and the time of the hands is shifted.
【００２４】第３に、先に述べた従来の電気回路では平
滑用コンデンサに蓄えた電力を制御回路にて消費してし
まうため、平滑用コンデンサ４の電圧低下を防止して安
定した電位を確保しようとすると、電気容量の大きな電
解コンデンサを使用することが必要であった。化学的反
応を利用して電荷を蓄える電解コンデンサは、使用時間
の経過とともに電気的特性の劣化（充電可能な電力量が
減少する）を招くため部品交換を要した。部品交換は時
計としての寿命を意味するため、電解コンデンサの劣化
により時計寿命が短くなり、商品としての価値を損なう
という課題を有した。Third, in the above-described conventional electric circuit, the power stored in the smoothing capacitor is consumed by the control circuit. Therefore, a voltage drop of the smoothing capacitor 4 is prevented and a stable potential is secured. Attempting to use an electrolytic capacitor having a large electric capacity was required. Electrolytic capacitors that store electric charges using a chemical reaction require deterioration of electrical characteristics (reduction in the amount of rechargeable power) with the lapse of use time, requiring replacement of components. Since the replacement of parts means the life of the watch, there has been a problem that the life of the watch is shortened due to deterioration of the electrolytic capacitor, and the value as a product is impaired.
【００２５】そこで電子制御時計に関する本発明は、時
計寿命が長い時計を得るとともに、平滑用コンデンサが
安定した電位を維持しながら電磁ブレーキを十分確保し
て、水晶振動子やＩＣの動作が安定することと発電機の
回転周期を一定に保つことを目的とする。Therefore, the present invention relating to an electronically controlled timepiece obtains a timepiece having a long timepiece life, secures a sufficient electromagnetic brake while maintaining a stable potential of a smoothing capacitor, and stabilizes the operation of a crystal oscillator and an IC. And to keep the rotation cycle of the generator constant.
【００２６】[0026]
【課題を解決するための手段】請求項１記載の発明は、
発電機と平滑用コンデンサ及び制御回路を並列に配置
し、電気的整流素子を平滑用コンデンサと制御回路で形
成する電気的ループ中に設けたことを特徴とする。According to the first aspect of the present invention,
A generator, a smoothing capacitor, and a control circuit are arranged in parallel, and an electric rectifying element is provided in an electric loop formed by the smoothing capacitor and the control circuit.
【００２７】請求項２記載の発明は、発電機と平滑用コ
ンデンサもしくは発電機と制御回路とで形成する異なる
２つの電気的ループ中に電気的整流素子を設け、一方の
電気的極性の電流のみを平滑用コンデンサに、他方の電
気的極性の電流を制御回路に供給することを特徴とす
る。According to a second aspect of the present invention, an electric rectifying element is provided in two different electric loops formed by a generator and a smoothing capacitor or a generator and a control circuit, and only a current having one electric polarity is provided. Is supplied to a smoothing capacitor and a current of the other electrical polarity is supplied to a control circuit.
【００２８】請求項３記載の発明は、平滑用コンデンサ
と発電機で形成する電気的閉ループの中に、発電機の起
電力を全波整流する整流回路を設けたことを特徴とす
る。請求項４記載の発明は、平滑用コンデンサに無電解
コンデンサを用いたことを特徴とする。According to a third aspect of the present invention, a rectifying circuit for full-wave rectifying the electromotive force of the generator is provided in an electrically closed loop formed by the smoothing capacitor and the generator. The invention according to claim 4 is characterized in that an electroless capacitor is used as the smoothing capacitor.
【００２９】[0029]
【作用】請求項１の発明では、平滑用コンデンサで蓄え
た電力が制御回路に流れ込み、前記電力が消費されるこ
とを防止する。請求項２の発明では、発電機の交流特性
を利用して、平滑用コンデンサへ充電する電力と制御回
路に流れる起電力を電気的極性ごとに分けたため、平滑
用コンデンサへの充電効率の向上と電磁ブレーキトルク
の増加が可能になる。According to the first aspect of the present invention, the power stored in the smoothing capacitor is prevented from flowing into the control circuit to prevent the power from being consumed. According to the second aspect of the present invention, the power for charging the smoothing capacitor and the electromotive force flowing to the control circuit are separated for each electrical polarity by utilizing the AC characteristics of the generator, thereby improving the charging efficiency for the smoothing capacitor. The electromagnetic brake torque can be increased.
【００３０】請求項３の発明では、平滑用コンデンサに
流れ込む起電力の量を増加して、コンデンサの放電時間
を短くする。請求項４の発明では、化学反応による時間
経過に伴う平滑用コンデンサの電気的特性の劣化を防止
することが可能となる。According to the third aspect of the present invention, the amount of electromotive force flowing into the smoothing capacitor is increased to shorten the discharging time of the capacitor. According to the fourth aspect of the invention, it is possible to prevent the electrical characteristics of the smoothing capacitor from deteriorating with time due to a chemical reaction.
【００３１】[0031]
【実施例】以下に、本発明を図面に基づいて説明する。 〔実施例１〕図１は、本発明に於ける実施例１の回路ブ
ロック図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. [First Embodiment] FIG. 1 is a circuit block diagram of a first embodiment of the present invention.
【００３２】ダイオード２１及び２２は、発電機３で誘
起した起電力（交流電力）を整流して、平滑用コンデン
サ４側と制御回路５側に分け、電気的閉ループを形成す
る。割する。平滑用コンデンサ４はダイオード２１で整
流した起電力を充電するとともに、ＩＣ１１（破線でか
こった部分）と水晶振動子に充電した電力を供給する。
そして平滑用コンデンサ４に１Ｖの電圧が蓄えられる
と、発振回路７は水晶振動子１０を駆動し、分周回路６
にクロック信号を出力する。The diodes 21 and 22 rectify the electromotive force (AC power) induced by the generator 3 and divide it into the smoothing capacitor 4 and the control circuit 5 to form an electrically closed loop. Crack. The smoothing capacitor 4 charges the electromotive force rectified by the diode 21 and supplies the charged power to the IC 11 (portion surrounded by a broken line) and the crystal resonator.
When a voltage of 1 V is stored in the smoothing capacitor 4, the oscillation circuit 7 drives the crystal oscillator 10 and the frequency dividing circuit 6
Output the clock signal to
【００３３】分周回路６は水晶振動子１０のクロック信
号を元に時刻信号を生成して演算回路８に出力する。検
出回路９は発電機３の回転周期に同期した誘起電圧を検
出して検出信号を生成し、演算回路８に出力する。The frequency dividing circuit 6 generates a time signal based on the clock signal of the crystal unit 10 and outputs the time signal to the arithmetic circuit 8. The detection circuit 9 detects an induced voltage synchronized with the rotation cycle of the generator 3, generates a detection signal, and outputs the detection signal to the arithmetic circuit 8.
【００３４】演算回路８は分周回路６の時刻信号と検出
回路９の検出信号を比較し、制御信号を生成して制御回
路５のスイッチ素子５２のゲート端子に出力する（スイ
ッチ素子は、図中に示すＭ０ＳＦＥＴを使用したが、電
気的制御が可能なスイッチ素子ならば、なんでもよ
い）。The arithmetic circuit 8 compares the time signal of the frequency dividing circuit 6 with the detection signal of the detection circuit 9, generates a control signal and outputs it to the gate terminal of the switch element 52 of the control circuit 5 (the switch element is shown in FIG. Although the MOSFET shown in the figure was used, any switch element that can be electrically controlled may be used.
【００３５】制御回路５（破線でかこった部分）は制御
信号を元にスイッチ素子５２のＯＮ／ＯＦＦ切換を行
う。スイッチ素子５２がＯＮ状態になると、発電機３と
抵抗素子５１の間には、ダイオード２２で整流された電
気的閉ループが形成される。スイッチ素子５２がＯＦＦ
状態になると、発電機３と平滑用コンデンサ４の間に
は、ダイオード２１で整流された電気的閉ループが形成
される。なお、抵抗素子５１は、発電機３の回転数を制
御できるだけの電磁ブレーキを発生する電流が十分に確
保できる抵抗値であればよい。The control circuit 5 (the portion surrounded by the broken line) switches the switch element 52 on and off based on the control signal. When the switch element 52 is turned on, an electric closed loop rectified by the diode 22 is formed between the generator 3 and the resistance element 51. Switch element 52 is OFF
In this state, an electric closed loop rectified by the diode 21 is formed between the generator 3 and the smoothing capacitor 4. The resistance element 51 may have a resistance value that can sufficiently secure a current for generating an electromagnetic brake that can control the rotation speed of the generator 3.
【００３６】そして、スイッチ素子のＯＮ／ＯＦＦ切換
により電磁ブレーキ量を調節して、発電機３の回転数を
調速する。その結果、指針１２は一定の回転周期で運針
するのである。図７は本発明の実施例１における発電機
の起電力と平滑用コンデンサの蓄電力が流れ込む電気的
閉ループについて示した図である。The speed of the generator 3 is regulated by adjusting the amount of electromagnetic braking by switching ON / OFF of the switch element. As a result, the hands 12 move at a constant rotation cycle. FIG. 7 is a diagram illustrating an electric closed loop into which the electromotive force of the generator and the stored power of the smoothing capacitor flow in the first embodiment of the present invention.
【００３７】制御回路５のスイッチ素子がＯＦＦ状態の
時、発電機３で誘起した起電力は経路を通過してダイ
オード２１で整流され平滑用コンデンサ４に流れ込む。
制御回路５のスイッチ素子がＯＮ状態の時、発電機３で
誘起した起電力は経路とを通過してダイオード２
１、２２で整流され、平滑用コンデンサ４と制御回路５
に流れ込む。When the switch element of the control circuit 5 is in the OFF state, the electromotive force induced by the generator 3 passes through the path, is rectified by the diode 21, and flows into the smoothing capacitor 4.
When the switch element of the control circuit 5 is ON, the electromotive force induced by the generator 3 passes through the
Smoothing capacitor 4 and control circuit 5
Flow into
【００３８】平滑用コンデンサ４に蓄えた電力は、常時
ＩＣ及び水晶振動子で消費される。以上に述べたよう
に、発電機の起電力と平滑用コンデンサの蓄電力が流れ
込む電気的閉ループを独立した３つの経路としたことが
本発明で示す実施例１である。The power stored in the smoothing capacitor 4 is always consumed by the IC and the crystal oscillator. As described above, in the first embodiment of the present invention, the electric closed loop into which the electromotive force of the generator and the stored power of the smoothing capacitor flow is made into three independent paths.
【００３９】（実施例２）本発明の実施例２は、図８に
示す通りダイオード２２の電気的極性を実施例１とは逆
にしたところにある。発電機３に有するコイルの一方の
出力端子とダイオード２２のカソード端子とダイオード
２１のアノード端子とを接続した。(Embodiment 2) In Embodiment 2 of the present invention, the electrical polarity of the diode 22 is reversed from that in Embodiment 1 as shown in FIG. One output terminal of the coil included in the generator 3 was connected to the cathode terminal of the diode 22 and the anode terminal of the diode 21.
【００４０】発電機３と平滑用コンデンサ４が形成する
経路には、平均電流ｉ１（平均電流とは１秒間に流れ
る電流の平均値）が流れる。平滑用コンデンサ４とＩＣ
１０及び水晶振動子１１が形成する経路には、平均電
流ｉ３が流れる。The average current i1 (the average current is the average value of the current flowing for one second) flows through the path formed by the generator 3 and the smoothing capacitor 4. Smoothing capacitor 4 and IC
An average current i3 flows through a path formed by the crystal resonator 10 and the crystal resonator 11.
【００４１】平均電流ｉ１とｉ３とは等しい電流値とな
り、ｉ１＝ｉ３＝Ｖｃ／Ｚ１ （Ｚ１は、コンデンサの
静電容量と経路に含まれる抵抗成分によるインピーダ
ンス値）となる。更に平均電流ｉ１は、発電機の起電圧
Ｅ＞コンデンサの電圧Ｖｃの時に流れ、Ｅ＜Ｖｃの時に
は流れない。The average currents i1 and i3 have the same current value, and i1 = i3 = Vc / Z1 (Z1 is the impedance value of the capacitance of the capacitor and the resistance component included in the path). Furthermore, the average current i1 flows when the generator electromotive voltage E> the capacitor voltage Vc, and does not flow when E <Vc.
【００４２】一方、発電機３と制御回路５が形成する経
路に流れる平均電流ｉ２は、発電機の起電圧Ｅによ
り、ｉ２＝Ｅ／Ｚ２（Ｚ２：経路に含まれる抵抗成分
によるインピーダンス値）で決まる。そのため、図８で
示す回路構成にすると、制御回路５の影響を受けないコ
ンデンサのに充電が可能となり、コンデンサ電圧の低下
を招かない電磁ブレーキの発生も可能となる。そして、
実施例２に示す電気回路は、発電機、ＩＣ、コンデンサ
の持つそれぞれの電気的役割を果たすことが可能とな
る。On the other hand, the average current i2 flowing through the path formed by the generator 3 and the control circuit 5 is represented by i2 = E / Z2 (Z2: impedance value due to a resistance component included in the path) due to the electromotive voltage E of the generator. Decided. Therefore, with the circuit configuration shown in FIG. 8, it is possible to charge a capacitor that is not affected by the control circuit 5, and it is also possible to generate an electromagnetic brake that does not cause a decrease in the capacitor voltage. And
The electric circuit shown in the second embodiment can play the respective electrical roles of the generator, IC, and capacitor.
【００４３】以上、ダイオード２２の電気的極性を実施
例１と逆にしたのが実施例２である。 （実施例３）図１０は、本発明の実施例３に於ける回路
ブロック図である。In the second embodiment, the electric polarity of the diode 22 is reversed from that in the first embodiment. (Embodiment 3) FIG. 10 is a circuit block diagram in Embodiment 3 of the present invention.
【００４４】実施例３は、平滑用コンデンサ４と発電機
３で形成する電気的閉ループの中に整流回路２３を設け
た。そして、制御回路５に流れ込む電流を整流するため
にダイオード２２を設けた。整流回路２３は、発電機か
ら平滑用コンデンサに流れ込む電流を全波整流して、平
滑用コンデンサに入力する電気的極性を一致させる。そ
のため、従来単極性の電流のみを取り込んでいた平滑用
コンデンサは両極性の電流を取り込めるため、電流の入
力間隔が短くなり、コンデンサの放電時間の短縮と電圧
低下の防止につながる。In the third embodiment, the rectifier circuit 23 is provided in an electrically closed loop formed by the smoothing capacitor 4 and the generator 3. Then, a diode 22 is provided to rectify the current flowing into the control circuit 5. The rectifier circuit 23 performs full-wave rectification on the current flowing from the generator into the smoothing capacitor, and matches the electrical polarity input to the smoothing capacitor. For this reason, the smoothing capacitor, which conventionally takes in only unipolar current, can take in bipolar current, so that the current input interval is shortened, leading to a reduction in capacitor discharge time and prevention of voltage drop.
【００４５】（実施例４）図１１は、本発明の実施例４
に於ける回路ブロック図である。実施例４は、発電機３
と平滑用コンデンサ４の間に整流回路２４を設けた。さ
らに、制御回路５を整流回路２４の中に設けた。また、
平滑用コンデンサと制御回路５の間にダイオード２５を
設けた。(Embodiment 4) FIG. 11 shows Embodiment 4 of the present invention.
FIG. 3 is a circuit block diagram in FIG. In the fourth embodiment, the generator 3
A rectifier circuit 24 was provided between the capacitor and the smoothing capacitor 4. Further, the control circuit 5 is provided in the rectifier circuit 24. Also,
A diode 25 was provided between the smoothing capacitor and the control circuit 5.
【００４６】（実施例５）先に述べた実施例１ないし実
施例４に設けた平滑用コンデンサに無電解コンデンサを
用いたのが実施例５である。実施例１ないし実施例４に
示す電気的回路における平滑用コンデンサ４の電力は高
インピーダンスの抵抗素子からなるＩＣのみで消費され
る。そのため平滑用コンデンサの電圧低下はほとんど起
こらない。また、発電機３の回転周期と同期して起電力
が常時平滑用コンデンサ４に供給されるため、たくさん
の電荷をコンデンサ内部に蓄える必要がない。従って平
滑用コンデンサの電気容量は小さくて済む。Fifth Embodiment A fifth embodiment uses an electroless capacitor as the smoothing capacitor provided in the first to fourth embodiments. In the electric circuits shown in the first to fourth embodiments, the power of the smoothing capacitor 4 is consumed only by the IC including the high impedance resistance element. Therefore, the voltage of the smoothing capacitor hardly drops. In addition, since the electromotive force is always supplied to the smoothing capacitor 4 in synchronization with the rotation cycle of the generator 3, it is not necessary to store a large amount of charges inside the capacitor. Therefore, the electric capacity of the smoothing capacitor can be small.
【００４７】そこで本発明の実施例１ないし実施例４に
おける電気的回路を用いて、さらに、電気容量は小さい
が時間経過とともに起こる電気的特性の劣化のない無電
解コンデンサを平滑用コンデンサに用いたのが本発明の
実施例５である。なおＩＣ外部に平滑用コンデンサを設
ける場合、セラミックコンデンサを用いると小型化に効
果的である。また、ＩＣ内部に平滑用コンデンサ４を設
ければ、一層の小型化を図ることが可能となる。Therefore, using the electric circuits in Examples 1 to 4 of the present invention, an electroless capacitor having a small electric capacity but not deteriorating the electric characteristics with the lapse of time was used as a smoothing capacitor. This is Example 5 of the present invention. When a smoothing capacitor is provided outside the IC, using a ceramic capacitor is effective for miniaturization. Further, if the smoothing capacitor 4 is provided inside the IC, it is possible to further reduce the size.
【００４８】[0048]
【発明の効果】以下、各実施例ごとに発明が発揮する効
果を記載する。 （実施例１）この発明は、以上で説明してきたように、
電気的整流素子を平滑用コンデンサと制御回路で形成す
る電気的ループ中に設けたことで、従来からの技術課題
である制御回路による平滑用コンデンサの蓄電力の無駄
なエネルギ消費が防止できた。そして図９の実線（ａ）
に示すように、コンデンサ電圧の急激な低下がなくな
り、ＩＣと水晶振動子への電力供給が安定した。The effects of the present invention will be described below for each embodiment. (Embodiment 1) As described above, the present invention
By providing the electric rectifying element in the electric loop formed by the smoothing capacitor and the control circuit, it was possible to prevent unnecessary energy consumption of the stored power of the smoothing capacitor by the control circuit, which is a conventional technical problem. And the solid line (a) in FIG.
As shown in (1), the capacitor voltage did not drop sharply, and the power supply to the IC and the crystal oscillator became stable.
【００４９】さらに、制御回路と発電機の間で生じる起
電力が十分確保でき、電磁ブレーキの最大トルクが高く
なった。その結果、図５に示すＴｈｍｉｎとなる以前
に、（１）ゼンマイの最大トルクＴｚｍａｘに対して、
電磁ブレーキの最大トルクＴｈｍａｘが下回って回転数
が制御不能となるような状態がなく、（２）平滑用コン
デンサの電圧低下に伴うＩＣや水晶振動子の動作停止が
するような状態がなく、持続時間が長くかつ時刻狂いが
生じない電子制御時計が実現できる。Further, the electromotive force generated between the control circuit and the generator was sufficiently secured, and the maximum torque of the electromagnetic brake was increased. As a result, before reaching the Thmin shown in FIG. 5, (1) with respect to the maximum torque Tzmax of the mainspring,
There is no state in which the maximum torque Thmax of the electromagnetic brake falls below and the rotation speed becomes uncontrollable, and (2) there is no state in which the operation of the IC and the crystal unit due to the voltage drop of the smoothing capacitor is stopped, and the state is maintained. An electronically controlled clock that is long in time and free from time skew can be realized.
【００５０】（実施例２）請求項２記載の発明は、発電
機と平滑用コンデンサもしくは発電機と制御回路とで形
成する異なる２つの電気的ループ中に電気的整流素子を
設け、一方の電気的極性の電流のみを平滑用コンデンサ
に、他方の電気的極性の電流を制御回路に供給すること
で、平滑用コンデンサと制御回路に流れ込む発電機の起
電力が同期したタイミングでなくなった。(Embodiment 2) According to a second aspect of the present invention, an electric rectifying element is provided in two different electric loops formed by a generator and a smoothing capacitor or a generator and a control circuit. By supplying only the current of the target polarity to the smoothing capacitor and the current of the other electrical polarity to the control circuit, the electromotive force of the generator flowing into the control circuit and the smoothing capacitor is not synchronized.
【００５１】上記の効果としては、電気的回路全体の充
電効率が向上して、トルクが高いときに平滑用コンデン
サへの充電時間が短くなり（電磁ブレーキをかける時間
が長くなるため）、コンデンサ電圧が低くなるという欠
点も回避できる。また充電効率の向上は、ＩＣの動作を
維持するために必要なコンデンサ電圧に対して必要以上
に起電圧を高くすることが無く、発電機の低速回転化が
可能となり、電子制御時計としての持続時間が従来技術
より長くなる効果もある。The effects described above are as follows: the charging efficiency of the entire electric circuit is improved, the charging time for the smoothing capacitor is shortened when the torque is high (the time for applying the electromagnetic brake is lengthened), and the capacitor voltage is increased. Can be avoided. In addition, the improvement of charging efficiency can be achieved without increasing the electromotive voltage more than necessary for the capacitor voltage required to maintain the operation of the IC, enabling the generator to run at a low speed and maintaining the electronic control clock. There is also an effect that the time is longer than that of the related art.
【００５２】また、使用するゼンマイのトルクが高い電
子制御時計においても、発電機の回転周期を一定に保つ
だけの電磁ブレーキを確保できるため、時刻狂いが生じ
ない電子制御時計が実現できる。 （実施例３）ないし（実施例４） 起電圧を全波整流するための電気的整流素子回路を平滑
用コンデンサと制御回路で形成する電気的ループ中に設
けたことで、充電タイミングの増加に伴う平滑用コンデ
ンサの電圧低下量を少なく押さえることが可能となる。Further, even in an electronic control timepiece that uses a high spring torque, it is possible to secure an electromagnetic brake that keeps the rotation cycle of the generator constant, so that it is possible to realize an electronic timepiece that does not cause time deviation. (Embodiment 3) to (Embodiment 4) By providing an electric rectifying element circuit for full-wave rectification of an electromotive voltage in an electric loop formed by a smoothing capacitor and a control circuit, the charging timing can be increased. Accordingly, it is possible to reduce the amount of voltage drop of the smoothing capacitor.
【００５３】上記の効果は電気的回路全体の充電効率が
向上することにつながり、実施例２で述べた電子制御時
計としての持続時間が従来技術より長くなる効果と同様
な効果を得られる。 （実施例５）平滑用コンデンサに無電解コンデンサを用
いることで、時間経過とともに化学反応が原因で起こる
コンデンサの電気的特性の劣化を回避したため、平滑用
コンデンサの部品交換がなくなった。これにより時計と
しての商品寿命が延び、商品性の向上につながった。The above-mentioned effect leads to an improvement in the charging efficiency of the entire electric circuit, and the same effect as the effect of the duration of the electronic control clock described in the second embodiment longer than that of the prior art can be obtained. (Example 5) By using an electroless capacitor as the smoothing capacitor, deterioration of the electrical characteristics of the capacitor caused by a chemical reaction with the passage of time was avoided, so that there was no need to replace parts of the smoothing capacitor. As a result, the life of the product as a watch has been extended, leading to an improvement in its commercial value.
【００５４】以上で述べた以外にも、回路上の電気的素
子の個数を大幅に増やすことなく、最少限に追加した部
品の配置や極性の変更で、電子制御時計の時刻精度を高
め、長時間安定した指針の運針を実現できる。以上で述
べた以外にも、回路上の電気的素子の個数を大幅に増や
すことなく、最少限に追加した部品の配置や極性の変更
で、電子制御時計の時刻精度を高め、長時間安定した指
針の運針を実現できる。In addition to the above, the time accuracy of the electronically controlled clock can be improved by changing the arrangement of components and changing the polarity to the minimum without greatly increasing the number of electrical elements on the circuit. It is possible to realize time-stabilized needle movement. In addition to the above, without significantly increasing the number of electrical elements on the circuit, the placement of the minimally added components and changing the polarity increased the time accuracy of the electronically controlled clock, and stabilized for a long time. Hand movement of hands can be realized.
【図１】本発明の電子制御時計の実施例１の回路ブロッ
ク図。FIG. 1 is a circuit block diagram of a first embodiment of an electronically controlled timepiece according to the present invention.
【図２】従来の電子制御時計の回路ブロック図。FIG. 2 is a circuit block diagram of a conventional electronically controlled timepiece.
【図３】電子制御時計のエネルギ伝達を示すブロック
図。FIG. 3 is a block diagram showing energy transmission of the electronically controlled timepiece.
【図４】発電機の回転周期を調速するための制御信号を
生成するまでのブロック図。FIG. 4 is a block diagram until a control signal for adjusting the rotation cycle of the generator is generated.
【図５】電子制御時計のゼンマイトルクとほどけ量、及
び発電機に生じるトルクを示す図である。FIG. 5 is a diagram showing a mainspring torque and an unwinding amount of the electronically controlled timepiece, and a torque generated in the generator.
【図６】従来例における発電機の起電力と平滑用コンデ
ンサの蓄電力が流れ込む電気的閉ループについて示した
図である。FIG. 6 is a diagram showing an electric closed loop into which electromotive force of a generator and stored power of a smoothing capacitor flow in a conventional example.
【図７】本発明の実施例１における発電機の起電力と平
滑用コンデンサの蓄電力が流れ込む電気的閉ループにつ
いて示した図である。FIG. 7 is a diagram showing an electric closed loop into which the electromotive force of the generator and the stored power of the smoothing capacitor flow in the first embodiment of the present invention.
【図８】本発明の実施例２における発電機の起電力と平
滑用コンデンサの蓄電力が流れ込む電気的閉ループにつ
いて示した図である。FIG. 8 is a diagram showing an electric closed loop into which the electromotive force of the generator and the stored power of the smoothing capacitor flow in the second embodiment of the present invention.
【図９】コンデンサ電圧の経過時間に対する変動を示し
た図である。FIG. 9 is a diagram showing a variation of a capacitor voltage with respect to an elapsed time.
【図１０】本発明の実施例３における回路ブロック図で
ある。FIG. 10 is a circuit block diagram according to a third embodiment of the present invention.
【図１１】本発明の実施例４における回路ブロック図で
ある。FIG. 11 is a circuit block diagram according to a fourth embodiment of the present invention.
１ ゼンマイ ２ 増速輪列 ３ 発電機 ４ 平滑用コンデンサ ５ 制御回路 ６ 分周回路 ７ 水晶発振回路 ８ 演算回路 ９ 検出回路 １０ 水晶振動子 １１ 電気的集積回路（ＩＣ） １２ 指針 １３ 積分回路 １４ トランスミッションゲート ２１ ２２、ダイオード ５１ 抵抗素子 ５２ スイッチ素子 DESCRIPTION OF SYMBOLS 1 Mainspring 2 Speed-up train 3 Generator 4 Smoothing capacitor 5 Control circuit 6 Divider circuit 7 Crystal oscillator circuit 8 Operation circuit 9 Detector circuit 10 Crystal oscillator 11 Electric integrated circuit (IC) 12 Pointer 13 Integrator circuit 14 Transmission Gate 21 22, Diode 51 Resistor 52 Switch
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平４−76489（ＪＰ，Ａ) 特開 平４−242226（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) G04C 10/10 - 10/02 G04C 3/00 H02J 7/00 - 7/36 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-76489 (JP, A) JP-A-4-242226 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) G04C 10/10-10/02 G04C 3/00 H02J 7/00-7/36
Claims (2)
械エネルギを増速輪列（２）を介して電気エネルギに変
換する発電機（３）と、変換した電気エネルギを一時的
に蓄える平滑用コンデンサ（４）と、平滑用コンデンサ
（４）に蓄えた電力で駆動する制御回路（５）ないし分
周回路（６）ないし発振回路（７）ないし演算回路
（８）ないし検出回路（９）を含む電気的集積回路（１
１）と水晶振動子（１０）を設け、演算回路（８）で生
成した信号に応じて制御回路（５）で電気エネルギの変
換量を可変し、発電機（３）の回転周期を一定に調整
し、増速輪列（２）に結合する指針（１２）の回転周期
を一定にした電子制御時計に於いて、発電機（３）と平
滑用コンデンサ（４）もしくは発電機（３）と制御回路
(５) とで形成する異なる２つの電気的ループ中に電気
的整流素子を設け、一方の電気的極性の電流のみを平滑
用コンデンサ（４）に、他方の電気的極性の電流を制御
回路（５）に供給することを特徴とする電子制御時計。 1. A mainspring (1), a generator (3) for converting mechanical energy of the mainspring (1) into electric energy via a speed increasing train (2), and temporarily storing the converted electric energy. A smoothing capacitor (4), a control circuit (5), a frequency dividing circuit (6), an oscillating circuit (7), an arithmetic circuit (8), and a detecting circuit (9) driven by the power stored in the smoothing capacitor (4). ) Including an electric integrated circuit (1)
1) and a crystal oscillator (10) are provided, and a control circuit (5) varies the amount of conversion of electric energy in accordance with a signal generated by an arithmetic circuit (8) to keep the rotation cycle of the generator (3) constant. In an electronically controlled timepiece in which the rotation period of the pointer (12) connected to the speed-up wheel train (2) is adjusted, the generator (3) and the smoothing capacitor (4) or the generator (3) are adjusted. Control circuit
(5) Electricity in two different electric loops formed by
Rectifying element to smooth current of one electrical polarity only
Current of the other electrical polarity is controlled by the capacitor (4)
An electronically controlled timepiece supplied to the circuit (5).
ンサを用いたことを特徴とする請求項１記載の電子制御The electronic control according to claim 1, wherein a sensor is used.
時計。clock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06172810A JP3120204B2 (en) | 1994-07-25 | 1994-07-25 | Electronic control clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06172810A JP3120204B2 (en) | 1994-07-25 | 1994-07-25 | Electronic control clock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0836072A JPH0836072A (en) | 1996-02-06 |
| JP3120204B2 true JP3120204B2 (en) | 2000-12-25 |
Family
ID=15948800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06172810A Expired - Lifetime JP3120204B2 (en) | 1994-07-25 | 1994-07-25 | Electronic control clock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3120204B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69733181T2 (en) * | 1996-03-13 | 2006-02-16 | Citizen Watch Co., Ltd., Nishitokyo | POWER SUPPLY FOR ELECTRONIC CLOCK |
| EP0942340B1 (en) * | 1997-09-30 | 2006-09-20 | Seiko Epson Corporation | Rotation control apparatus and rotation control method |
| JP3472877B2 (en) * | 1997-09-30 | 2003-12-02 | セイコーエプソン株式会社 | Electronically controlled mechanical timepiece and control method thereof |
-
1994
- 1994-07-25 JP JP06172810A patent/JP3120204B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0836072A (en) | 1996-02-06 |
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