JPS57158565A - Battery life detecting circuit - Google Patents

Battery life detecting circuit

Info

Publication number
JPS57158565A
JPS57158565A JP56044412A JP4441281A JPS57158565A JP S57158565 A JPS57158565 A JP S57158565A JP 56044412 A JP56044412 A JP 56044412A JP 4441281 A JP4441281 A JP 4441281A JP S57158565 A JPS57158565 A JP S57158565A
Authority
JP
Japan
Prior art keywords
terminals
kinds
states
generated
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.)
Granted
Application number
JP56044412A
Other languages
Japanese (ja)
Other versions
JPH0424669B2 (en
Inventor
Masami Katsui
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 Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP56044412A priority Critical patent/JPS57158565A/en
Publication of JPS57158565A publication Critical patent/JPS57158565A/en
Publication of JPH0424669B2 publication Critical patent/JPH0424669B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Tests Of Electric Status Of Batteries (AREA)

Abstract

PURPOSE:To generate the best set voltage by an apparatus itself which uses a battery, such as a clock, etc., by selecting a battery life detecting resistance by a signal from a frequency dividing circuit of an electronic clock. CONSTITUTION:When a point A is made low and an output of a frequency dividing circuit is provided to terminals (a), (b) and (c), eight kinds of states are generated by operation of an input gate 1, and these eight kinds of states are stored in a storage device provided on the outside. On the other hand, when the eight states are provided to a resistance splitting circuit 2, the transmission gate is turned on and off, and eight kinds of voltage are generated by eight kinds of resistance states. Subsequently, the best voltage is selected, and after that, each state of the terminals (a), (b) and (c) which have generated said voltage is generated by terminals C1, C2 and C3 by cutting a bonding wire, and when the point A is set to a high state, the battery life detecting circuit is operated by the set state of the terminals C1, C2 and C3, irrespective of the state of the terminals (a), (b) and (c).
JP56044412A 1981-03-26 1981-03-26 Battery life detecting circuit Granted JPS57158565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56044412A JPS57158565A (en) 1981-03-26 1981-03-26 Battery life detecting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56044412A JPS57158565A (en) 1981-03-26 1981-03-26 Battery life detecting circuit

Publications (2)

Publication Number Publication Date
JPS57158565A true JPS57158565A (en) 1982-09-30
JPH0424669B2 JPH0424669B2 (en) 1992-04-27

Family

ID=12690787

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56044412A Granted JPS57158565A (en) 1981-03-26 1981-03-26 Battery life detecting circuit

Country Status (1)

Country Link
JP (1) JPS57158565A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61283912A (en) * 1985-06-10 1986-12-13 Casio Comput Co Ltd Trimming device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5191762A (en) * 1975-10-15 1976-08-11
JPS53133068A (en) * 1977-04-26 1978-11-20 Seiko Epson Corp Voltage detecting circuit
JPS56140281A (en) * 1980-04-01 1981-11-02 Citizen Watch Co Ltd Electronic timepiece

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5191762A (en) * 1975-10-15 1976-08-11
JPS53133068A (en) * 1977-04-26 1978-11-20 Seiko Epson Corp Voltage detecting circuit
JPS56140281A (en) * 1980-04-01 1981-11-02 Citizen Watch Co Ltd Electronic timepiece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61283912A (en) * 1985-06-10 1986-12-13 Casio Comput Co Ltd Trimming device

Also Published As

Publication number Publication date
JPH0424669B2 (en) 1992-04-27

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