GB1537500A - Method and apparatus for measuring the state of charge of a battery - Google Patents

Method and apparatus for measuring the state of charge of a battery

Info

Publication number
GB1537500A
GB1537500A GB52738/75A GB5273875A GB1537500A GB 1537500 A GB1537500 A GB 1537500A GB 52738/75 A GB52738/75 A GB 52738/75A GB 5273875 A GB5273875 A GB 5273875A GB 1537500 A GB1537500 A GB 1537500A
Authority
GB
United Kingdom
Prior art keywords
battery
comparator
extent
falls below
set value
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.)
Expired
Application number
GB52738/75A
Other languages
English (en)
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.)
Curtis Instruments Inc
Original Assignee
Curtis Instruments Inc
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
Priority claimed from US05/591,055 external-priority patent/US4017724A/en
Application filed by Curtis Instruments Inc filed Critical Curtis Instruments Inc
Publication of GB1537500A publication Critical patent/GB1537500A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
    • G01R19/16542—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies for batteries
    • 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]
    • G01R31/3644—Constructional arrangements
    • G01R31/3646—Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
GB52738/75A 1975-01-03 1975-12-23 Method and apparatus for measuring the state of charge of a battery Expired GB1537500A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53846375A 1975-01-03 1975-01-03
US05/591,055 US4017724A (en) 1975-06-27 1975-06-27 Apparatus for measuring battery depletion by monitoring reductions in voltage

Publications (1)

Publication Number Publication Date
GB1537500A true GB1537500A (en) 1978-12-29

Family

ID=27065826

Family Applications (1)

Application Number Title Priority Date Filing Date
GB52738/75A Expired GB1537500A (en) 1975-01-03 1975-12-23 Method and apparatus for measuring the state of charge of a battery

Country Status (6)

Country Link
JP (1) JPS5193340A (fr)
CA (1) CA1049614A (fr)
DE (1) DE2558526C2 (fr)
FR (1) FR2296945A1 (fr)
GB (1) GB1537500A (fr)
IT (1) IT1062151B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1250744A1 (fr) * 2000-01-10 2002-10-23 Snap-on Incorporated Compteur d'utilisateur pour bloc d'alimentation portatif de demarrage d'appoint
US7580803B2 (en) 2006-09-06 2009-08-25 Techtronic Power Tools Technology Limited Energy source monitoring and control system
CN114449698A (zh) * 2021-02-05 2022-05-06 成都芯源系统有限公司 Led驱动系统及其反馈控制电路和反馈信号生成方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3706076A1 (de) * 1987-02-25 1988-09-08 Elektron Bremen Verfahren und vorrichtung zur ueberwachung des bereitschaftszustandes eines batteriebetriebenen fahrzeuges
DE102004056190B4 (de) * 2004-11-20 2013-12-19 Braun Gmbh Verfahren zur Bestimmung eines Ladungszustands einer wiederaufladbaren Batterie

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE648836C (de) * 1935-11-01 1937-08-09 Accumulatoren Fabrik Akt Ges Verfahren zur Kompensation des scheinbaren inneren Widerstandes der Batterie bei derSchaltung zur Messung des Betriebszustandes
GB1136083A (en) * 1965-03-11 1968-12-11 Eaton Yale & Towne A circuit for indicating when a battery is discharged
US3484681A (en) * 1967-10-27 1969-12-16 Grady Charles B Jun Remaining battery charge meter
DE2028117B2 (en) * 1969-06-12 1975-11-27 Ckd Praha, Oborovy Podnik, Prag Charge condition monitor and control for battery charger - stores earlier terminal volts value for comparison with later volts value
FR2209107B1 (fr) * 1972-12-06 1977-12-23 Redresseurs Sta Benit
DE2321108B2 (de) * 1973-04-26 1976-06-16 Elektron Fabrik für physikalischtechnische Geräte Kerber & Co., 2800 Bremen Einrichtung zur ueberwachung des entladezustands einer batterie

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1250744A1 (fr) * 2000-01-10 2002-10-23 Snap-on Incorporated Compteur d'utilisateur pour bloc d'alimentation portatif de demarrage d'appoint
EP1250744A4 (fr) * 2000-01-10 2003-06-04 Snap On Tech Inc Compteur d'utilisateur pour bloc d'alimentation portatif de demarrage d'appoint
US7580803B2 (en) 2006-09-06 2009-08-25 Techtronic Power Tools Technology Limited Energy source monitoring and control system
CN114449698A (zh) * 2021-02-05 2022-05-06 成都芯源系统有限公司 Led驱动系统及其反馈控制电路和反馈信号生成方法
CN114449698B (zh) * 2021-02-05 2024-01-12 成都芯源系统有限公司 Led驱动系统及其反馈控制电路和反馈信号生成方法

Also Published As

Publication number Publication date
FR2296945B1 (fr) 1981-02-13
IT1062151B (it) 1983-06-30
DE2558526A1 (de) 1976-07-08
DE2558526C2 (de) 1985-09-19
JPS5193340A (fr) 1976-08-16
CA1049614A (fr) 1979-02-27
FR2296945A1 (fr) 1976-07-30

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19951222