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JPS57111477A - Electronic device - Google Patents

Electronic device

Info

Publication number
JPS57111477A
JPS57111477A JP55188116A JP18811680A JPS57111477A JP S57111477 A JPS57111477 A JP S57111477A JP 55188116 A JP55188116 A JP 55188116A JP 18811680 A JP18811680 A JP 18811680A JP S57111477 A JPS57111477 A JP S57111477A
Authority
JP
Japan
Prior art keywords
battery
life
internal resistance
ending
warning
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
JP55188116A
Other languages
Japanese (ja)
Inventor
Tadashi Sano
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 JP55188116A priority Critical patent/JPS57111477A/en
Publication of JPS57111477A publication Critical patent/JPS57111477A/en
Pending 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]
    • 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]
    • G01R31/389—Measuring internal impedance, internal conductance or related variables

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Tests Of Electric Status Of Batteries (AREA)

Abstract

PURPOSE:To detect and report the ending of battery life with high precision, by measuring the internal resistance of the power battery and by giving a warning of the ending of the battery life. CONSTITUTION:A switching element S0 is turned on and off by a signal (a), and switching elements S2 and S1 are turned on instantaneously by signals (c) and (b) respectively, so that capacitors C2 and C1 are charged to a potential[R/ (R+r)]E determined by the ideal potential E of a battery B, the internal resistance (r) of the battery B, and a resistance R. When the internal resistance (r) basd upon the potential exceeds a prescribed value, a comparator CMP generates a battery-life warning signal. Therefore, large variation in the internal resistance of even an alkali-manganese battery which has less constant-voltage variation in its life-ending period is detected in the life-ending period to give a warning of battery life with high precision.
JP55188116A 1980-12-29 1980-12-29 Electronic device Pending JPS57111477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55188116A JPS57111477A (en) 1980-12-29 1980-12-29 Electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55188116A JPS57111477A (en) 1980-12-29 1980-12-29 Electronic device

Publications (1)

Publication Number Publication Date
JPS57111477A true JPS57111477A (en) 1982-07-10

Family

ID=16217980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55188116A Pending JPS57111477A (en) 1980-12-29 1980-12-29 Electronic device

Country Status (1)

Country Link
JP (1) JPS57111477A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573874A1 (en) * 1984-11-28 1986-05-30 Telectronics Nv CIRCUIT FOR TESTING THE IMPEDANCE OF THE BATTERY OF A HEART STIMULATOR
JPS6230168U (en) * 1985-08-07 1987-02-23
US20160064980A1 (en) * 2014-09-02 2016-03-03 Samsung Electronics Co., Ltd. Method of managing the charging of battery and electronic device adapted thereto

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573874A1 (en) * 1984-11-28 1986-05-30 Telectronics Nv CIRCUIT FOR TESTING THE IMPEDANCE OF THE BATTERY OF A HEART STIMULATOR
JPS6230168U (en) * 1985-08-07 1987-02-23
US20160064980A1 (en) * 2014-09-02 2016-03-03 Samsung Electronics Co., Ltd. Method of managing the charging of battery and electronic device adapted thereto
US10243380B2 (en) * 2014-09-02 2019-03-26 Samsung Electronics Co., Ltd. Method and apparatus for battery malfunction detection and notification thereof

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