JPS5422864A - Motor drive circuit electronic watch - Google Patents
Motor drive circuit electronic watchInfo
- Publication number
- JPS5422864A JPS5422864A JP8664777A JP8664777A JPS5422864A JP S5422864 A JPS5422864 A JP S5422864A JP 8664777 A JP8664777 A JP 8664777A JP 8664777 A JP8664777 A JP 8664777A JP S5422864 A JPS5422864 A JP S5422864A
- Authority
- JP
- Japan
- Prior art keywords
- drive circuit
- motor drive
- electronic watch
- circuit electronic
- step motor
- 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
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
- G04G19/08—Arrangements for preventing voltage drop due to overloading the power supply
Abstract
PURPOSE:To prevent the erroneous operations due to reduction in the voltage of a battery by connecting in series a battery power source, a step motor and a switch circuit and by connecting in parallel the step motor drive circuit and a condenser.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8664777A JPS5422864A (en) | 1977-07-21 | 1977-07-21 | Motor drive circuit electronic watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8664777A JPS5422864A (en) | 1977-07-21 | 1977-07-21 | Motor drive circuit electronic watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5422864A true JPS5422864A (en) | 1979-02-21 |
Family
ID=13892813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8664777A Pending JPS5422864A (en) | 1977-07-21 | 1977-07-21 | Motor drive circuit electronic watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5422864A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55166076A (en) * | 1979-06-13 | 1980-12-24 | Citizen Watch Co Ltd | Circuit for electronic watch |
JPS58501090A (en) * | 1981-07-13 | 1983-07-07 | ティーティーシー ホールディング アクチエンゲゼルシャフト | electronic equipment |
JP2015047028A (en) * | 2013-08-29 | 2015-03-12 | リンナイ株式会社 | Power supply apparatus |
-
1977
- 1977-07-21 JP JP8664777A patent/JPS5422864A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55166076A (en) * | 1979-06-13 | 1980-12-24 | Citizen Watch Co Ltd | Circuit for electronic watch |
JPS58501090A (en) * | 1981-07-13 | 1983-07-07 | ティーティーシー ホールディング アクチエンゲゼルシャフト | electronic equipment |
JP2015047028A (en) * | 2013-08-29 | 2015-03-12 | リンナイ株式会社 | Power supply apparatus |
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