JPS57191576A - Battery life annunciator - Google Patents

Battery life annunciator

Info

Publication number
JPS57191576A
JPS57191576A JP56076853A JP7685381A JPS57191576A JP S57191576 A JPS57191576 A JP S57191576A JP 56076853 A JP56076853 A JP 56076853A JP 7685381 A JP7685381 A JP 7685381A JP S57191576 A JPS57191576 A JP S57191576A
Authority
JP
Japan
Prior art keywords
circuit
annunciator
clocking
output
battery
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
JP56076853A
Other languages
Japanese (ja)
Inventor
Toshiki Ishino
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.)
Seikosha KK
Original Assignee
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 Seikosha KK filed Critical Seikosha KK
Priority to JP56076853A priority Critical patent/JPS57191576A/en
Publication of JPS57191576A publication Critical patent/JPS57191576A/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]

Landscapes

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

Abstract

PURPOSE:To prevent malfunction due to fluctuation of temperature or the operation of an additional mechanism, and to detect the life of a battery securely by performing the annunciation of the battery life when the battery voltage drops below a prescribed level contrinuously beyond the specified time. CONSTITUTION:The output of a quartz oscillator Q is supplied through a frequency divider D to a driving circuit DR and hands are driven by a motor M to perform time display. When a battery voltage drops below a predetermined level, the output of a detecting circuit a is inverted to 0 and a clocking circuit CT and an annunciator L are released from being reset. Then, the clocking circuit CT starts clocking and when a preset certain time elapses, the clocking circuit CT generates an output to set a flip-flop circuit F. Consequently, the annunciator L operates to annunciate the battery life.
JP56076853A 1981-05-21 1981-05-21 Battery life annunciator Pending JPS57191576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56076853A JPS57191576A (en) 1981-05-21 1981-05-21 Battery life annunciator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56076853A JPS57191576A (en) 1981-05-21 1981-05-21 Battery life annunciator

Publications (1)

Publication Number Publication Date
JPS57191576A true JPS57191576A (en) 1982-11-25

Family

ID=13617205

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56076853A Pending JPS57191576A (en) 1981-05-21 1981-05-21 Battery life annunciator

Country Status (1)

Country Link
JP (1) JPS57191576A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2237407B1 (en) * 2009-04-04 2014-03-26 Dyson Technology Limited Control system for an electric machine
CN106814320A (en) * 2015-11-28 2017-06-09 华南理工大学 A kind of lithium iron phosphate dynamic battery Cycle life prediction system
US9742318B2 (en) 2009-04-04 2017-08-22 Dyson Technology Limited Control of an electric machine
US9742319B2 (en) 2009-04-04 2017-08-22 Dyson Technology Limited Current controller for an electric machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2237407B1 (en) * 2009-04-04 2014-03-26 Dyson Technology Limited Control system for an electric machine
US9742318B2 (en) 2009-04-04 2017-08-22 Dyson Technology Limited Control of an electric machine
US9742319B2 (en) 2009-04-04 2017-08-22 Dyson Technology Limited Current controller for an electric machine
CN106814320A (en) * 2015-11-28 2017-06-09 华南理工大学 A kind of lithium iron phosphate dynamic battery Cycle life prediction system
CN106814320B (en) * 2015-11-28 2019-05-14 华南理工大学 A kind of lithium iron phosphate dynamic battery Cycle life prediction system

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