JPS5746185A - Power source of electronic watch - Google Patents

Power source of electronic watch

Info

Publication number
JPS5746185A
JPS5746185A JP55122119A JP12211980A JPS5746185A JP S5746185 A JPS5746185 A JP S5746185A JP 55122119 A JP55122119 A JP 55122119A JP 12211980 A JP12211980 A JP 12211980A JP S5746185 A JPS5746185 A JP S5746185A
Authority
JP
Japan
Prior art keywords
power source
electronic watch
battery
charging
turned
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
Application number
JP55122119A
Other languages
Japanese (ja)
Inventor
Kotaro Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP55122119A priority Critical patent/JPS5746185A/en
Publication of JPS5746185A publication Critical patent/JPS5746185A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces

Abstract

PURPOSE:To obtain long life of each battery and to cope with the increase in loads by controling two kinds of batteries by a switch circuit and charging the third battery. CONSTITUTION:When a point P is at a VSS2 level, transistors T1 and T2 are ON, T3-T5 are OFF, and a power source V1 is connected to a power source V3 via T1 and T2. When, the point P is charged to VDD, T1 and T2 are turned OFF, T3-T5 are turned ON, and the charging is performed from a power source V2 to V3. Therefore, V1 and V2 are used alternately, and the life of each battery is elongated.
JP55122119A 1980-09-03 1980-09-03 Power source of electronic watch Pending JPS5746185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55122119A JPS5746185A (en) 1980-09-03 1980-09-03 Power source of electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55122119A JPS5746185A (en) 1980-09-03 1980-09-03 Power source of electronic watch

Publications (1)

Publication Number Publication Date
JPS5746185A true JPS5746185A (en) 1982-03-16

Family

ID=14828088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55122119A Pending JPS5746185A (en) 1980-09-03 1980-09-03 Power source of electronic watch

Country Status (1)

Country Link
JP (1) JPS5746185A (en)

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