JPS6321891U - - Google Patents
Info
- Publication number
- JPS6321891U JPS6321891U JP11500286U JP11500286U JPS6321891U JP S6321891 U JPS6321891 U JP S6321891U JP 11500286 U JP11500286 U JP 11500286U JP 11500286 U JP11500286 U JP 11500286U JP S6321891 U JPS6321891 U JP S6321891U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- voltage
- solar cell
- output
- reference voltage
- 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
- 238000007599 discharging Methods 0.000 claims 1
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
添付図面は本考案に係る太陽電池時計の電源回
路を示す図である。
１２…太陽電池、１４…第１定電圧回路、１６
…第１スイツチ回路、２０…第１比較器、２４…
時計回路、２６…分圧抵抗器、２８…二次電池、
３０…一次電池、３２…第２定電圧回路、３８…
第２比較器、４０…第２スイツチ回路、４２…第
３スイツチ回路。
The accompanying drawing is a diagram showing a power supply circuit of a solar cell watch according to the present invention. 12... Solar cell, 14... First constant voltage circuit, 16
...first switch circuit, 20...first comparator, 24...
Clock circuit, 26... voltage dividing resistor, 28... secondary battery,
30... Primary battery, 32... Second constant voltage circuit, 38...
Second comparator, 40...second switch circuit, 42...third switch circuit.
Claims (1)
出力に基いて基準電圧を出力し得る第１定電圧回
路と、 時計回路に印加される電圧と前記基準電圧を比
較する第１比較器と、 太陽電池の出力電圧が一定値以下になつたとき
前記第１比較回路の出力によつて太陽電池を時計
回路から切り離す第１スイツチ回路と、 を有する電子時計の電源回路において、 二次電池に並列な一次電池と、 一次電池で駆動されて基準電圧を出力し得る第
２定電圧回路と、 該第２定電圧回路の基準電圧と時計回路に印加
される電圧とを比較する第２比較回路と、 時計回路に印加される電圧が一定値以下になつ
たとき、前記第２比較回路の出力によつて一次電
池と時計回路とを接続する第２スイツチ回路と、 前記二次電池に直列に設けられ、第２スイツチ
回路がオン状態のときオフ状態となり二次電池の
放電及び充電を遮断する第３スイツチ回路と、 を付加した電源回路を有することを特徴とする太
陽電池時計。[Claims for Utility Model Registration] A solar cell, a clock circuit, a secondary battery provided in parallel with the clock circuit, and a device capable of stabilizing the output of the solar cell and outputting a reference voltage based on the output of the solar cell. a first constant voltage circuit; a first comparator that compares the voltage applied to the clock circuit with the reference voltage; and when the output voltage of the solar cell falls below a certain value, the voltage is determined by the output of the first comparison circuit. A first switch circuit that disconnects a solar cell from a clock circuit; a primary battery that is parallel to a secondary battery; and a second constant voltage circuit that is driven by the primary battery and can output a reference voltage. , a second comparison circuit that compares the reference voltage of the second constant voltage circuit and the voltage applied to the clock circuit; and a second comparison circuit that compares the reference voltage of the second constant voltage circuit with the voltage applied to the clock circuit; A second switch circuit connects the primary battery and the clock circuit by output, and is provided in series with the secondary battery, and when the second switch circuit is in the on state, it is in the off state to cut off discharging and charging of the secondary battery. A solar cell watch characterized by having a third switch circuit that performs the following functions, and a power supply circuit that includes the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11500286U JPS6321891U (en) | 1986-07-25 | 1986-07-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11500286U JPS6321891U (en) | 1986-07-25 | 1986-07-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6321891U true JPS6321891U (en) | 1988-02-13 |
Family
ID=30998254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11500286U Pending JPS6321891U (en) | 1986-07-25 | 1986-07-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6321891U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004027525A1 (en) * | 2002-09-19 | 2004-04-01 | Citizen Watch Co., Ltd. | Electronic clock |
| JP2008261660A (en) * | 2007-04-10 | 2008-10-30 | Seiko Epson Corp | Motor drive control circuit, semiconductor device, electronic timepiece, and electronic timepiece with power generating set |
| JP2012125026A (en) * | 2010-12-07 | 2012-06-28 | Rhythm Watch Co Ltd | Power supply device employing solar battery |
-
1986
- 1986-07-25 JP JP11500286U patent/JPS6321891U/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004027525A1 (en) * | 2002-09-19 | 2004-04-01 | Citizen Watch Co., Ltd. | Electronic clock |
| JP2008261660A (en) * | 2007-04-10 | 2008-10-30 | Seiko Epson Corp | Motor drive control circuit, semiconductor device, electronic timepiece, and electronic timepiece with power generating set |
| JP2012125026A (en) * | 2010-12-07 | 2012-06-28 | Rhythm Watch Co Ltd | Power supply device employing solar battery |