JPS6457182A - Battery capacity check circuit - Google Patents

Battery capacity check circuit

Info

Publication number
JPS6457182A
JPS6457182A JP62214521A JP21452187A JPS6457182A JP S6457182 A JPS6457182 A JP S6457182A JP 62214521 A JP62214521 A JP 62214521A JP 21452187 A JP21452187 A JP 21452187A JP S6457182 A JPS6457182 A JP S6457182A
Authority
JP
Japan
Prior art keywords
battery
residual capacity
pulse
switch
waveform
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
JP62214521A
Other languages
Japanese (ja)
Inventor
Kunio Hibino
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62214521A priority Critical patent/JPS6457182A/en
Publication of JPS6457182A publication Critical patent/JPS6457182A/en
Pending legal-status Critical Current

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  • Tests Of Electric Status Of Batteries (AREA)

Abstract

PURPOSE:To detect the residual capacity of a battery without exhausting the battery to display the same, by comparing a preliminarily stored reference voltage pattern with the terminal voltage waveform of a dummy load. CONSTITUTION:A switch 2 is subjected to on/off control by a pulse generating part 4 and a switch control part 5 and, by turning the switch 2 on, a pulse current is supplied to a dummy load 3 from a battery 1 and pulse voltage appears between the terminals of the load 3. This pulse waveform voltage is compared with a preliminarily stored reference voltage pattern in a waveform detection part 6 and the residual capacity of the battery 1 is detected to be displayed on a display part 8 through a display driving part 7. Since the decay of the residual voltage pattern due to the exhaustion of the battery is affected by the kind and residual capacity of the battery and the magnitude of a discharge current, by properly selecting a discharge current value, a discharge time and a discharge cycle corresponding to the kind of the battery, the residual capacity of the battery can be accurately judged without almost exhausting the accumulated electric energy of the battery.
JP62214521A 1987-08-28 1987-08-28 Battery capacity check circuit Pending JPS6457182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62214521A JPS6457182A (en) 1987-08-28 1987-08-28 Battery capacity check circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62214521A JPS6457182A (en) 1987-08-28 1987-08-28 Battery capacity check circuit

Publications (1)

Publication Number Publication Date
JPS6457182A true JPS6457182A (en) 1989-03-03

Family

ID=16657098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62214521A Pending JPS6457182A (en) 1987-08-28 1987-08-28 Battery capacity check circuit

Country Status (1)

Country Link
JP (1) JPS6457182A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100446525B1 (en) * 1996-06-25 2004-11-03 삼성전자주식회사 Battery capacity display and method
JP2016090227A (en) * 2014-10-29 2016-05-23 トヨタ自動車株式会社 Secondary battery diagnostic apparatus
CN115421060A (en) * 2022-08-03 2022-12-02 中国标准化研究院 System for remotely detecting charge-discharge attenuation degree of power battery and detection method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5298933A (en) * 1976-02-14 1977-08-19 Aichi Electric Mfg Detecting device for residual capacity of storage battery

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5298933A (en) * 1976-02-14 1977-08-19 Aichi Electric Mfg Detecting device for residual capacity of storage battery

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100446525B1 (en) * 1996-06-25 2004-11-03 삼성전자주식회사 Battery capacity display and method
JP2016090227A (en) * 2014-10-29 2016-05-23 トヨタ自動車株式会社 Secondary battery diagnostic apparatus
CN115421060A (en) * 2022-08-03 2022-12-02 中国标准化研究院 System for remotely detecting charge-discharge attenuation degree of power battery and detection method thereof

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