JPS58146990U - electronic clock - Google Patents
electronic clockInfo
- Publication number
- JPS58146990U JPS58146990U JP4443482U JP4443482U JPS58146990U JP S58146990 U JPS58146990 U JP S58146990U JP 4443482 U JP4443482 U JP 4443482U JP 4443482 U JP4443482 U JP 4443482U JP S58146990 U JPS58146990 U JP S58146990U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- main battery
- pulse generation
- battery
- generation 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
第１図は、本考案の一実施例を示すブロック図、第２図
は、第１図における切替回路の詳細な回路図、第３図は
、第１図における駆動回路の詳細な回路図。
２・・・・・・主電池、４・・・・・・副電池、６・・
・・・・パルス発生回路、８・・・・・・切替回路、１
０ａ、１０ｂ・・・・・・駆動回路、１２・・・・・・
電圧検出回路、２０・・・・・・時計用モータ。FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a detailed circuit diagram of the switching circuit in FIG. 1, and FIG. 3 is a detailed circuit diagram of the drive circuit in FIG. 1. 2... Main battery, 4... Sub battery, 6...
...Pulse generation circuit, 8...Switching circuit, 1
0a, 10b...drive circuit, 12...
Voltage detection circuit, 20...Clock motor.
Claims (1)
計用モータと、パルス発生回路からのパルス列を時計用
モータを駆動するパルス列に変換する駆動回路と、通常
時電源として用いられる主電池と、副電池と、主電池の
電圧が一定値以下になったことを検出する電圧検出回路
と、電圧検出回路からの信号によって少なくとも駆動回
路を含むパルス発生回路以外の回路の電源を主電池から
副電池に切り替える切替回路と、を有し、通常時は主電
池のみを電源としてパルス発生回路、切替回路および駆
動回路を駆動し、主電池の電圧が低下した時は少なくと
も駆動回路を含むパルス発生回路以外の回路の電源のみ
を主電池から副電池に切り替えることを特徴とする電子
時計。A pulse generation circuit that generates a pulse train of a constant frequency, a watch motor, a drive circuit that converts the pulse train from the pulse generation circuit into a pulse train that drives the watch motor, a main battery that is normally used as a power source, and a sub battery. and a voltage detection circuit that detects when the voltage of the main battery has fallen below a certain value, and a signal from the voltage detection circuit that switches the power supply of circuits other than the pulse generation circuit, including at least the drive circuit, from the main battery to the auxiliary battery. A switching circuit, which normally drives the pulse generation circuit, switching circuit, and drive circuit using only the main battery as a power source, and when the voltage of the main battery drops, at least circuits other than the pulse generation circuit including the drive circuit. An electronic watch characterized by switching only the power source from the main battery to the sub battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4443482U JPS58146990U (en) | 1982-03-29 | 1982-03-29 | electronic clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4443482U JPS58146990U (en) | 1982-03-29 | 1982-03-29 | electronic clock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58146990U true JPS58146990U (en) | 1983-10-03 |
Family
ID=30055488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4443482U Pending JPS58146990U (en) | 1982-03-29 | 1982-03-29 | electronic clock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58146990U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5179368A (en) * | 1974-12-12 | 1976-07-10 | Suwa Seikosha Kk | |
| JPS52110665A (en) * | 1976-03-15 | 1977-09-16 | Seiko Instr & Electronics Ltd | Circuit for electronic clock |
-
1982
- 1982-03-29 JP JP4443482U patent/JPS58146990U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5179368A (en) * | 1974-12-12 | 1976-07-10 | Suwa Seikosha Kk | |
| JPS52110665A (en) * | 1976-03-15 | 1977-09-16 | Seiko Instr & Electronics Ltd | Circuit for electronic clock |
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