JPS637388U - - Google Patents
Info
- Publication number
- JPS637388U JPS637388U JP10014086U JP10014086U JPS637388U JP S637388 U JPS637388 U JP S637388U JP 10014086 U JP10014086 U JP 10014086U JP 10014086 U JP10014086 U JP 10014086U JP S637388 U JPS637388 U JP S637388U
- Authority
- JP
- Japan
- Prior art keywords
- secondary battery
- switch
- solar cell
- clock circuit
- voltage value
- 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
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
Description
第１図は本考案の一実施例に係る太陽電池付時
計の回路構成を示す図、第２図は第１図に示す二
次電池の充電電圧と第１乃至第３のスイツチの作
動状態を示す図である。
２……時計回路、４……太陽電池、６……二次
電池、２２……抵抗、２４……第１のスイツチ、
２６……第１コンパレータ、２８……第２のスイ
ツチ、３０……第２コンパレータ、３２……第３
のスイツチ、３４……シユミツトコンパレータ。
Fig. 1 is a diagram showing the circuit configuration of a solar cell watch according to an embodiment of the present invention, and Fig. 2 shows the charging voltage of the secondary battery and the operating states of the first to third switches shown in Fig. 1. FIG. 2... Clock circuit, 4... Solar cell, 6... Secondary battery, 22... Resistor, 24... First switch,
26...first comparator, 28...second switch, 30...second comparator, 32...third
Switch, 34...Schmitt comparator.
Claims (1)
計回路と、 二次電池に直列に接続された過充電防止用抵抗
と、を有する太陽電池付時計において、 二次電池に直列に接続された第１のスイツチと
、 二次電池の電圧が第１の電圧値以下のときにの
み前記第１のスイツチをオン状態にして二次電池
と太陽電池を接続させる第１コンパレータと、 前記時計回路に直列に接続された第２のスイツ
チと、 二次電池の電圧が前記第１の電圧値以上のとき
に第２のスイツチをオン状態にして二次電池と時
計回路を接続させる第２コンパレータと、 前記第１のスイツチに並列に接続された第３の
スイツチと、 二次電池の電圧が前記第１の電圧値以上でかつ
それより高い電圧の第２の電圧値以下のときのみ
前記第３のスイツチをオン状態にして前記太陽電
池と二次電池を接続するシユミツトコンパレータ
と、 を有することを特徴とする太陽電池付時計。[Claims for Utility Model Registration] A solar cell, a secondary battery charged by the solar cell, a clock circuit driven by the solar cell and the secondary battery, and a clock circuit connected in series to the secondary battery. a first switch connected in series to a secondary battery; and a solar cell watch having an overcharge prevention resistor; a first comparator that turns on a switch to connect the secondary battery and the solar cell; a second switch connected in series to the clock circuit; and when the voltage of the secondary battery is equal to or higher than the first voltage value. a second comparator that turns on a second switch to connect the secondary battery and the clock circuit; a third switch connected in parallel to the first switch; and a third switch connected in parallel to the first switch; a Schmitt comparator that turns on the third switch to connect the solar cell and the secondary battery only when the voltage is higher than the second voltage value and lower than the second voltage value higher than the second voltage value. A solar-powered watch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10014086U JPS637388U (en) | 1986-06-30 | 1986-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10014086U JPS637388U (en) | 1986-06-30 | 1986-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS637388U true JPS637388U (en) | 1988-01-19 |
Family
ID=30969679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10014086U Pending JPS637388U (en) | 1986-06-30 | 1986-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS637388U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998035272A1 (en) * | 1997-02-06 | 1998-08-13 | Citizen Watch Co., Ltd. | Electronic clock |
| WO1999030212A1 (en) * | 1997-12-11 | 1999-06-17 | Citizen Watch Co., Ltd. | Electronic timepiece |
| JP2012085448A (en) * | 2010-10-12 | 2012-04-26 | Lapis Semiconductor Co Ltd | Charge control system and charge control device |
| JP2016096720A (en) * | 2016-01-14 | 2016-05-26 | ラピスセミコンダクタ株式会社 | Semiconductor device and semiconductor device control method |
| US11152850B2 (en) | 2018-11-15 | 2021-10-19 | Fujitsu Limited | Power source apparatus and communication apparatus |
| US11340674B2 (en) | 2017-12-05 | 2022-05-24 | Fujitsu Limited | Power supply apparatus and communication apparatus |
-
1986
- 1986-06-30 JP JP10014086U patent/JPS637388U/ja active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998035272A1 (en) * | 1997-02-06 | 1998-08-13 | Citizen Watch Co., Ltd. | Electronic clock |
| WO1999030212A1 (en) * | 1997-12-11 | 1999-06-17 | Citizen Watch Co., Ltd. | Electronic timepiece |
| JP2012085448A (en) * | 2010-10-12 | 2012-04-26 | Lapis Semiconductor Co Ltd | Charge control system and charge control device |
| US9887578B2 (en) | 2010-10-12 | 2018-02-06 | Lapis Semiconductor Co., Ltd. | Charging control system and device |
| US10075014B2 (en) | 2010-10-12 | 2018-09-11 | Lapis Semiconductor Co., Ltd. | Charging control system and device |
| JP2016096720A (en) * | 2016-01-14 | 2016-05-26 | ラピスセミコンダクタ株式会社 | Semiconductor device and semiconductor device control method |
| US11340674B2 (en) | 2017-12-05 | 2022-05-24 | Fujitsu Limited | Power supply apparatus and communication apparatus |
| US11152850B2 (en) | 2018-11-15 | 2021-10-19 | Fujitsu Limited | Power source apparatus and communication apparatus |