JPS61177130A - Wrist watch with solar cell - Google Patents
Wrist watch with solar cellInfo
- Publication number
- JPS61177130A JPS61177130A JP1499585A JP1499585A JPS61177130A JP S61177130 A JPS61177130 A JP S61177130A JP 1499585 A JP1499585 A JP 1499585A JP 1499585 A JP1499585 A JP 1499585A JP S61177130 A JPS61177130 A JP S61177130A
- Authority
- JP
- Japan
- Prior art keywords
- diode
- voltage
- solar cell
- solar battery
- 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.)
- Pending
Links
Landscapes
- Electromechanical Clocks (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は太陽電池付腕時計のリミッター回路に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a limiter circuit for a solar battery wristwatch.
従来の太陽電池付腕時計は、第１図のように太陽電池１
、発光ダイオード２、電子時計回路５．２次電源４、及
び逆流防止ダイオード５から構成されている。A conventional solar battery wristwatch has a solar battery 1 as shown in Figure 1.
, a light emitting diode 2, an electronic clock circuit 5, a secondary power source 4, and a backflow prevention diode 5.
しかし、前述の従来技術ではリミッター電圧は発光ダイ
オードのしきい値（１，５Ｖ〜１．８ Ｖ ）できまシ
、この電圧が低いと２次電源に充電される電圧も低い。However, in the prior art described above, the limiter voltage cannot be adjusted to the threshold value of the light emitting diode (1.5 V to 1.8 V), and when this voltage is low, the voltage charged to the secondary power source is also low.
そのために２次電源の放電時間が短いという問題点を有
する。Therefore, there is a problem that the discharge time of the secondary power source is short.
そこで本発明はこのような問題点を解決するもので、そ
の目的とするところはリミッター回路圧を上げる（ １
．８ Ｖ〜２Ｖ）リミッタ−回路を提供するところにあ
る。Therefore, the present invention is intended to solve these problems, and its purpose is to increase the limiter circuit pressure (1
．． 8 V to 2 V) limiter circuit.
本発明の太陽電池付腕時計は、並列接続された太陽電池
、２次電源、電子時計回路からな）、発光ダイオードと
ダイオードを順方向に直列接続したリミッター回路を有
し、該ＩＪ ミツター回路が該太陽電池に並列接続され
ていることを特徴とする。The solar battery wristwatch of the present invention has a limiter circuit including a solar battery, a secondary power source, and an electronic clock circuit connected in parallel, a light emitting diode, and a diode connected in series in the forward direction, and the IJ Mitsuter circuit It is characterized by being connected in parallel to the solar cells.
本発明の上記の構成によれば、リミッタ−電圧は発光ダ
イオード（１，５Ｖ ）とダイオード（（Ｌ５Ｖ）のし
きいイ直の和（２，ＯＶ）になるので、リミッタ−電圧
は上がる。According to the above structure of the present invention, the limiter voltage becomes the sum (2,OV) of the thresholds of the light emitting diode (1,5V) and the diode ((L5V)), so the limiter voltage increases.
第２図は、本発明の実施例における回路図であって、太
陽電池１、発光ダイオード２、電子時計回路５．２次電
源４、ダイオード５、ダイオード６から構成される。FIG. 2 is a circuit diagram of an embodiment of the present invention, which is composed of a solar cell 1, a light emitting diode 2, an electronic clock circuit 5, a secondary power source 4, a diode 5, and a diode 6.
以下に回路の詳細を説明する。The details of the circuit will be explained below.
２次電＃４には、太陽′電池１で発生する電流がダイオ
ード５を介して充電される。この時２次電源４に充電さ
れる電圧は、発光ダイオード２、ダイオード６のしきい
値の和をこえる電圧がかかると発光ダイオード２、ダイ
オード６がＯＮ状態になるのでしきい値の和をこえる電
圧は充電されない。リミッタ−電圧として、約２ｖを得
る。The secondary voltage #4 is charged with a current generated in the solar battery 1 via a diode 5. At this time, the voltage charged to the secondary power supply 4 exceeds the sum of the thresholds because the light-emitting diodes 2 and diodes 6 turn on when a voltage that exceeds the sum of the thresholds of the light-emitting diodes 2 and diodes 6 is applied. Voltage is not charged. Approximately 2v is obtained as the limiter voltage.
リミッタ−電圧を上げる方法としてツェナーダイオード
を使うこともできるが、しきい値がｚ５Ｖ〜＋ＯＶと腕
時計には電圧が若干高すぎ、また価格的にも高い。A Zener diode can be used as a way to increase the limiter voltage, but the threshold voltage is z5V to +OV, which is a little too high for a wristwatch, and it is also expensive.
〔発明の効果〕
以上述べたように本発明によれば、ダイオード１つ入れ
ることによりリミッタ−電圧をダイオードのしきい直方
だけ上げるという効果を有する。[Effects of the Invention] As described above, according to the present invention, by inserting one diode, the limiter voltage can be increased by an amount perpendicular to the threshold of the diode.
特に小形薄型化が高い価値を有する腕時計では実装密度
が非常に高く部品は最低必要限度にしたい。この場合本
発明を採用してもダイオード２ヶ入りのモールドタイプ
を使用すれば部品点数社ふえず、大きさは１ケ入シと変
わらない。Particularly for wristwatches, where miniaturization and thinning are of high value, packaging density is extremely high, so it is desirable to keep the number of components to the minimum necessary. In this case, even if the present invention is adopted, if a mold type containing two diodes is used, the number of parts will not increase, and the size will remain the same as the one containing one diode.
更に、ＩＩ！：Ｄとダイオードを太陽電池の裏面に直付
けし、過充電防止付太陽電池モジュールとして構成すれ
ば、腕時計サイズの小型機器に応用が拡がる。Furthermore, II! : If D and the diode are attached directly to the back of a solar cell and configured as a solar cell module with overcharge prevention, the application will expand to small devices the size of a wristwatch.
第１図は、従来の回路図。 第２図は、本発明の実施例を示す回路図。 ｌ・・・太陽電池 ２・・・発光ダイオード ３・・・電子時計回路 ４・・・２次′域源 ５・・・ダイオード ６・・・ダイオード 以 上 FIG. 1 is a conventional circuit diagram. FIG. 2 is a circuit diagram showing an embodiment of the present invention. l...Solar battery 2...Light emitting diode 3...Electronic clock circuit 4...Second order' area source 5...Diode 6...Diode that's all
Claims (1)
並列接続された太陽電池付腕時計において、発光ダイオ
ードとダイオードとを順方向に直列接続したリミッター
回路を有し、該リミッター回路が太陽電池に並列接続さ
れていることを特徴とする太陽電池付腕時計。A solar battery wristwatch in which a solar battery is used as a primary power source and a secondary power source and an electronic watch circuit are connected in parallel has a limiter circuit in which a light emitting diode and a diode are connected in series in the forward direction, and the limiter circuit A wristwatch with a solar battery, which is characterized by being connected in parallel to a battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1499585A JPS61177130A (en) | 1985-01-29 | 1985-01-29 | Wrist watch with solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1499585A JPS61177130A (en) | 1985-01-29 | 1985-01-29 | Wrist watch with solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61177130A true JPS61177130A (en) | 1986-08-08 |
Family
ID=11876509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1499585A Pending JPS61177130A (en) | 1985-01-29 | 1985-01-29 | Wrist watch with solar cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61177130A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07686U (en) * | 1993-05-10 | 1995-01-06 | 株式会社明電舎 | Industrial manipulator |
-
1985
- 1985-01-29 JP JP1499585A patent/JPS61177130A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07686U (en) * | 1993-05-10 | 1995-01-06 | 株式会社明電舎 | Industrial manipulator |
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