JPS56148075A - Battery discharge meter - Google Patents

Battery discharge meter

Info

Publication number
JPS56148075A
JPS56148075A JP5220780A JP5220780A JPS56148075A JP S56148075 A JPS56148075 A JP S56148075A JP 5220780 A JP5220780 A JP 5220780A JP 5220780 A JP5220780 A JP 5220780A JP S56148075 A JPS56148075 A JP S56148075A
Authority
JP
Japan
Prior art keywords
battery
output
discharge
voltage
circuit
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
JP5220780A
Other languages
Japanese (ja)
Other versions
JPH0132468B2 (en
Inventor
Atsushi Hirao
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.)
Japan Storage Battery Co Ltd
Original Assignee
Japan Storage Battery Co 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 Japan Storage Battery Co Ltd filed Critical Japan Storage Battery Co Ltd
Priority to JP5220780A priority Critical patent/JPS56148075A/en
Publication of JPS56148075A publication Critical patent/JPS56148075A/en
Publication of JPH0132468B2 publication Critical patent/JPH0132468B2/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]
    • G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements

Landscapes

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

Abstract

PURPOSE:To display the discharge state of the discharging battery without relation to the discharge conditions such as the magnitude of a discharge current, electrolyte temperatures, battery life, and the like, by compensating the indication of the discharge meter by the voltage drop of the battery. CONSTITUTION:A power source circuit 10 is connected to the battery 9 to be measured, and the discharge current of the battery 9 to be measured is sensed by a shunt 8. In a subtracting circuit 14, the difference between a reference voltage output of a reference voltage generator 13 and the output of a voltage measuring circuit 12 is obtained, and the value which is proportional to the voltage drop is outputted. A differential amplifier 11 differentially amplifies a minute voltage output of the shunt 8, and sends the output to a multiplying circuit 15. The voltage which is proportional to the product of a discharge current from the multiplier 15 and the voltage drop is supplied to a counter 18 via a V-F converter 16 and a frequency divider 17. The output of the counter 18 is displayed on a display 20 via a D-A converter 19. Thus, the discharge state of the discharging battery can be read directly.
JP5220780A 1980-04-18 1980-04-18 Battery discharge meter Granted JPS56148075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5220780A JPS56148075A (en) 1980-04-18 1980-04-18 Battery discharge meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5220780A JPS56148075A (en) 1980-04-18 1980-04-18 Battery discharge meter

Publications (2)

Publication Number Publication Date
JPS56148075A true JPS56148075A (en) 1981-11-17
JPH0132468B2 JPH0132468B2 (en) 1989-06-30

Family

ID=12908318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5220780A Granted JPS56148075A (en) 1980-04-18 1980-04-18 Battery discharge meter

Country Status (1)

Country Link
JP (1) JPS56148075A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63200779U (en) * 1987-06-15 1988-12-23
WO1997020225A1 (en) * 1994-05-31 1997-06-05 Omron Corporation Device and method for estimating remaining life of battery
KR100624365B1 (en) * 2004-12-01 2006-09-18 주식회사 파워트론 Battery cell voltage and internal impedance measuring circuit
KR100760134B1 (en) * 2005-01-18 2007-09-18 산요덴키가부시키가이샤 Voltage-frequency converter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63200779U (en) * 1987-06-15 1988-12-23
WO1997020225A1 (en) * 1994-05-31 1997-06-05 Omron Corporation Device and method for estimating remaining life of battery
US6317697B1 (en) 1995-11-29 2001-11-13 Omron Corporation Battery life determination apparatus and battery life determination method
KR100624365B1 (en) * 2004-12-01 2006-09-18 주식회사 파워트론 Battery cell voltage and internal impedance measuring circuit
KR100760134B1 (en) * 2005-01-18 2007-09-18 산요덴키가부시키가이샤 Voltage-frequency converter

Also Published As

Publication number Publication date
JPH0132468B2 (en) 1989-06-30

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