JPH0797141B2 - How to display the charge status of an electronic watch - Google Patents
How to display the charge status of an electronic watchInfo
- Publication number
- JPH0797141B2 JPH0797141B2 JP60035981A JP3598185A JPH0797141B2 JP H0797141 B2 JPH0797141 B2 JP H0797141B2 JP 60035981 A JP60035981 A JP 60035981A JP 3598185 A JP3598185 A JP 3598185A JP H0797141 B2 JPH0797141 B2 JP H0797141B2
- Authority
- JP
- Japan
- Prior art keywords
- hand movement
- voltage
- boosting
- display
- state
- 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
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C10/00—Arrangements of electric power supplies in time pieces
- G04C10/04—Arrangements of electric power supplies in time pieces with means for indicating the condition of the power supply
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Direct Current Feeding And Distribution (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、内部に発電機構と電荷蓄積部材に充電された
該発電機構からの発電圧を昇降圧する昇降圧手段を持
ち、その昇降圧電圧をシステムの電源として使用す指針
表示電子時計に関し、特にその充電状態表示に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention has a power generation mechanism and a step-up / down means for boosting / decreasing the voltage generated by the power generation mechanism charged in a charge storage member. The present invention relates to a pointer display electronic timepiece using a battery as a power source of a system, and particularly to a charge state display thereof.
従来電子時計は、ボタン型電池等の１次電池を使用して
動作していたが、近年時計の電池寿命を延ばすために太
陽電池等の発電機構を有し、その発電電力を２次電池に
充電して利用したり、最近では２次電池の換わりに電気
二重層コンデンサに前記発電電力を蓄えて電源とし、半
永久的に動作する電子時計も発売されている。さらに、
発電手段により充電された電気二重層コンデンサのよう
な、電源電圧の放電特性がフラットではない電源を備え
た電子時計の改良も考えられ、詳細は特願昭59−246778
号（特開昭61−124887号）に開示されている。そして、
該特許出願に開示されているように、発電電力も無駄な
く有効に利用するために、内部に昇圧回路を有し電荷蓄
積部材に蓄えられ発生した電圧を昇圧して利用してい
る。Conventionally, electronic timepieces were operated by using primary batteries such as button type batteries, but in recent years, in order to extend the battery life of timepieces, there is a power generation mechanism such as a solar cell, and the generated power is supplied to a secondary battery. An electronic timepiece that is semi-permanently operated by charging and using it, or recently, by storing the generated power in an electric double layer capacitor instead of a secondary battery and using it as a power source has been put on the market. further,
It is also possible to improve an electronic timepiece provided with a power supply whose discharge characteristic of the power supply voltage is not flat, such as an electric double layer capacitor charged by a power generation means. For details, see Japanese Patent Application No. 59-246778.
JP-A-61-24887. And
As disclosed in the patent application, in order to effectively use the generated power without waste, a voltage boosting circuit is provided inside and the voltage stored in the charge storage member is boosted and used.
これらの時計は、電荷蓄積部材に蓄えられた電荷が動作
源であるため、その蓄積量を知ることが重要となってく
る。その１つの方法として、電荷蓄積部材の発生電圧を
検出する方法があるが、蓄積量は細かく知るためには多
くの基準電圧を持つ大規模な電圧検出手段を要すること
になってしまう。また、蓄積量を表示するために、イン
ジケータを専用に設けると回路負荷，コストとも増すこ
とになる。従って、本発明の目的は、この不都合を無く
すために、前記特願昭59−246778（特開昭61−124887
号）に開示されているような昇圧回路を利用し、指針運
針状態により細かく電荷蓄積状態を知ることができるよ
うにすることにある。In these watches, since the electric charge accumulated in the electric charge accumulating member is the operation source, it is important to know the accumulated amount. As one of the methods, there is a method of detecting the generated voltage of the charge storage member, but a large-scale voltage detection means having a large number of reference voltages will be required in order to know the storage amount in detail. Further, if an indicator is provided exclusively for displaying the accumulated amount, the circuit load and cost will increase. Therefore, in order to eliminate this inconvenience, the object of the present invention is to provide the above-mentioned Japanese Patent Application No. 59-246778 (Japanese Patent Application Laid-Open No. 61-124887).
No. 4) is used to make it possible to know the charge accumulation state more finely by the pointer movement state.
本発明の電子時計の充電状態表示方法は、発電し電荷を
発生させる工程と、 前記電荷を蓄積させる工程と、 蓄積された前記電荷の電圧を時計駆動のために複数の昇
圧倍率にて昇圧させる工程と、 該昇圧された出力電圧値を検出する工程と、 検出された前記出力電圧値により前記昇圧倍率を指定す
る昇圧倍率値を変化させる工程と、 前記昇圧倍率値の変化に伴い、前記昇圧倍率値に応じて
指針の運針状態を変化させる工程と、からなる。A method of displaying a state of charge of an electronic timepiece according to the present invention includes a step of generating electricity to generate electric charges, a step of accumulating the electric charges, and a step of increasing the voltage of the accumulated electric charges at a plurality of step-up factors for driving the timepiece. A step of detecting the boosted output voltage value, a step of changing the boosting rate value designating the boosting rate based on the detected output voltage value, The step of changing the hand movement state of the pointer according to the magnification value.
本発明の作用を述べれば、電荷蓄積状態に応じて昇圧倍
率が変えられ、この昇圧倍率値に対応して指針運針を変
化させることにより、その時の電荷蓄積状態を知ること
ができる。To describe the operation of the present invention, the boosting ratio can be changed according to the charge storage state, and the charge storage state at that time can be known by changing the pointer movement corresponding to this boosting ratio value.
第１図は、本発明のシステムブロック図であり、第２図
は、第１図における電気二重層コンデンサの充放電によ
って生ずる発生電圧Vscの変化と該Vscを昇圧した電圧Vs
sと、それに応じて変化する運針状態を表したものであ
る。第２図において、通常運針とは電子時計の一般的な
運針方式である１秒運針,20秒運針等であり、A,B,Cは他
の運針方式を表わす。FIG. 1 is a system block diagram of the present invention, and FIG. 2 is a change in generated voltage Vsc caused by charging and discharging of the electric double layer capacitor in FIG. 1 and voltage Vs obtained by boosting Vsc.
s and the state of hand movement that changes accordingly. In FIG. 2, the normal hand movement is a 1-second hand movement, a 20-second hand movement or the like which is a general hand movement method of an electronic timepiece, and A, B and C represent other hand movement methods.
第１図に表わした電子時計は、特願昭59−246778に開示
されているような発電手段１と昇圧手段３を有する電子
時計であり、発電手段１による起電力は、ダイオード９
で整流され電気二重層コンデンサ２に充電される。該電
気二重層コンデンサに発生した電圧Vscは電圧検出手段
５からの信号によって制御される昇圧手段３によって昇
圧され、該昇圧電圧Vssはバックアップコンデンサ８に
充電される。前記電圧検出手段５は、Vssの電圧値（本
実施例では、1.2vと1.8v及び1.6vの値）を検出しそれに
よって昇圧手段３の昇圧倍率を制御する信号を出力す
る。また、バックアップコンデンサ８は電圧検出手段5,
計時手段6,運針制御手段４の電源となる。計時手段６は
発振回路を含み、計時信号，タイミング信号等を形成す
る。４は本発明による運針制御手段であり、昇圧倍率を
示す信号を昇圧手段により受け、運針状態を変える構成
になっており、運針用のステップモータ７を駆動する。
本実施例では、第２図に示すように、２倍から1.5倍へ
昇圧倍率を下げる場合を除き、|Vss|が1.8Vを越える度
に昇圧倍率を下げてゆき、1.2Vを割る度に昇圧倍率を上
げている。The electronic timepiece shown in FIG. 1 is an electronic timepiece having a power generation means 1 and a boosting means 3 as disclosed in Japanese Patent Application No. 59-246778, and an electromotive force generated by the power generation means 1 is a diode 9
The electric double layer capacitor 2 is charged by being rectified by. The voltage Vsc generated in the electric double layer capacitor is boosted by the boosting means 3 controlled by the signal from the voltage detecting means 5, and the boosted voltage Vss is charged in the backup capacitor 8. The voltage detecting means 5 detects a voltage value of Vss (values of 1.2v, 1.8v and 1.6v in this embodiment), and outputs a signal for controlling the step-up ratio of the step-up means 3 accordingly. In addition, the backup capacitor 8 is a voltage detecting means 5,
It serves as a power source for the timekeeping means 6 and the hand movement control means 4. The clock means 6 includes an oscillation circuit and forms a clock signal, a timing signal and the like. Reference numeral 4 denotes a hand movement control means according to the present invention, which is configured to receive a signal indicating a step-up ratio by the pressure raising means and change a hand movement state, and drives a step motor 7 for hand movement.
In the present embodiment, as shown in FIG. 2, except when the boosting ratio is reduced from 2 times to 1.5 times, the boosting ratio is lowered every time | Vss | exceeds 1.8V, and every time it drops below 1.2V. The boost ratio is increasing.
ここで、２倍から1.5倍へ昇圧倍率を下げる際は、Vssが
1.6Vを越えた場合（Vscが0.8Vを越えた場合に相当す
る）、昇圧倍率を切り替えている。Here, when lowering the boosting ratio from 2 times to 1.5 times, Vss
When it exceeds 1.6V (corresponding to when Vsc exceeds 0.8V), the boosting ratio is switched.
これは、本実施例における放電過程（充電量が低下しつ
つあり昇圧倍率を上げてゆく過程）では、２倍昇圧の区
間は、Vssが1.6Vか1.2Vまでの間（Vscが0.8Vから0.6Vの
区間に相当する）となるため、充電過程と放電過程にお
ける２倍昇圧の区間を一致させるためである。該昇圧倍
率の範囲は３倍,2倍,1.5倍,1倍であり、それぞれの範囲
はVscの電圧で規定されるが、該電圧は充電電荷量に比
例する。従って、この昇圧倍率に伴って運針状態をA,B,
C,通常運針と変えることにより、例えばＡ表示は１秒２
秒の繰り返し運針、Ｂ表示は２秒運針、Ｃ表示は３秒運
針とすることにより、電気二重層コンデンサの充電状態
を一目瞭然で知ることが可能となった。本例では、第２
図から明らかなように、通常運針時は充電率67％以上、
Ａ運針時は44％〜67％、Ｂ運針時は33％〜44％、Ｃ運針
時は33％以下となる。図中“不定”とはVssがICの動作
範囲外となってしまい制御不可の領域である。This is because during the discharging process (the process in which the charge amount is decreasing and the boosting ratio is increasing) in the present embodiment, the double boosting section is between Vss of 1.6 V and 1.2 V (from Vsc of 0.8 V to 0.8 V). This is because it corresponds to the section of 0.6 V), and the section of double boosting in the charging process and the discharging process is made to coincide with each other. The range of the boosting ratio is 3 times, 2 times, 1.5 times, and 1 time, and each range is defined by the voltage of Vsc, but the voltage is proportional to the amount of charge. Therefore, the hand movement state is changed to A, B, and
By changing to C, normal hand movement, for example, A display is 1 second 2
By repeating the second hand movement, B display for 2 second hand movement, and C display for 3 second hand movement, it became possible to know the charging state of the electric double layer capacitor at a glance. In this example, the second
As is clear from the figure, the charging rate is 67% or more during normal hand movement,
44% to 67% for A hand movement, 33% to 44% for B hand movement, and 33% or less for C hand movement. “Undefined” in the figure is an area where Vss is out of the operating range of the IC and cannot be controlled.
本発明の電子時計の充電状態表示方法は、発電し電荷を
発生させる工程と、 前記電荷を蓄積させる工程と、 蓄積された前記電荷の電圧を時計駆動のために複数の昇
圧倍率にて昇圧させる工程と、 該昇圧された出力電圧値を検出する工程と、 検出された前記出力電圧値により前記昇圧倍率を指定す
る昇圧倍率値を変化させる工程と、 前記昇圧倍率値の変化に伴い、前記昇圧倍率値に応じて
指針の運針状態を変化させる工程と、からなるため、時
計駆動電圧を得るために用いた複数の昇圧倍率を利用し
て、運針状態を変化させることにより、充電状態表示の
ためのみに新たに電圧検出を行うことを不要とし、制御
の簡略化を可能とする充電状態表示方法を提供できるも
のである。A method of displaying a state of charge of an electronic timepiece according to the present invention includes a step of generating electricity to generate electric charges, a step of accumulating the electric charges, and a step of increasing the voltage of the accumulated electric charges at a plurality of step-up factors for driving the timepiece. A step of detecting the boosted output voltage value, a step of changing the boosting rate value designating the boosting rate based on the detected output voltage value, Since it consists of the step of changing the hand movement state of the pointer according to the magnification value, it is possible to display the charging state by changing the hand movement state by using the multiple boosting ratios used to obtain the timepiece drive voltage. Therefore, it is possible to provide a charging state display method that does not require new voltage detection only and can simplify control.
第１図……本発明のシステムブロック図 第２図……第１図のVsc,Vssの変化と運針状態を示した
図 １……発電手段 ２……電荷蓄積部材 ３……昇降圧手段 ４……本発明の運針制御手段 ５……電圧検出手段 ６……計時手段 ７……モーター ８……バックアップコンデンサ ９……ダイオードFIG. 1 ... System block diagram of the present invention FIG. 2 ... Diagram showing changes in Vsc and Vss and hand movement state of FIG. 1 ... Power generation means 2 ... Charge storage member 3 ... Buck-boost means 4 ...... Hand movement control means 5 of the present invention 5 ...... Voltage detection means 6 ...... Timekeeping means 7 ...... Motor 8 ...... Backup capacitor 9 ...... Diode
フロントページの続き (72)発明者 吉野 雅士 長野県諏訪市大和３丁目３番５号 株式会 社諏訪精工舎内 (56)参考文献 特開 昭55−24656（ＪＰ，Ａ) 特開 昭58−176571（ＪＰ，Ａ) 特開 昭57−119278（ＪＰ，Ａ) 特開 昭54−85767（ＪＰ，Ａ)Front page continuation (72) Inventor Masashi Yoshino 3-5 Yamato 3-chome, Suwa City, Nagano Stock Company Suwa Seikosha Co., Ltd. (56) Reference JP-A-55-24656 (JP, A) JP-A-58- 176571 (JP, A) JP-A-57-119278 (JP, A) JP-A-54-85767 (JP, A)
Claims (1)
圧倍率にて昇圧させる工程と、 該昇圧された出力電圧値を検出する工程と、 検出された前記出力電圧値により前記昇圧倍率を指定す
る昇圧倍率値を変化させる工程と、 前記昇圧倍率値の変化に伴い、前記昇圧倍率値に応じて
指針の運針状態を変化させる工程と、 からなる電子時計の充電状態表示方法。1. A step of generating electricity to generate electric charges, a step of accumulating the electric charges, a step of increasing the voltage of the accumulated electric charges by a plurality of step-up factors for driving a timepiece, and the step of increasing the voltage. A step of detecting an output voltage value; a step of changing a boosting magnification value designating the boosting magnification by the detected output voltage value; and A method of displaying the charge status of an electronic timepiece, which comprises the step of changing the hand movement status.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60035981A JPH0797141B2 (en) | 1985-02-25 | 1985-02-25 | How to display the charge status of an electronic watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60035981A JPH0797141B2 (en) | 1985-02-25 | 1985-02-25 | How to display the charge status of an electronic watch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61194386A JPS61194386A (en) | 1986-08-28 |
| JPH0797141B2 true JPH0797141B2 (en) | 1995-10-18 |
Family
ID=12457058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60035981A Expired - Lifetime JPH0797141B2 (en) | 1985-02-25 | 1985-02-25 | How to display the charge status of an electronic watch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0797141B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR940006915B1 (en) * | 1988-01-25 | 1994-07-29 | 세이꼬 엡슨 가부시끼가이샤 | Electronic wrist watch with power generator |
| US6002652A (en) * | 1996-05-24 | 1999-12-14 | Citizen Watch Co., Ltd. | Pointer-type electronic clock |
| JPH1094169A (en) * | 1996-09-13 | 1998-04-10 | Honda Motor Co Ltd | Power unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5524656A (en) * | 1978-08-11 | 1980-02-21 | Seiko Instr & Electronics Ltd | Electronic watch |
| JPS58176571A (en) * | 1982-04-09 | 1983-10-17 | Citizen Watch Co Ltd | Analog crystal timepiece with battery life display |
-
1985
- 1985-02-25 JP JP60035981A patent/JPH0797141B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61194386A (en) | 1986-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |