DE69222567D1 - Verfahren zur Messung der verbleibenden Ladung einer Speicherzelle - Google Patents

Verfahren zur Messung der verbleibenden Ladung einer Speicherzelle

Info

Publication number
DE69222567D1
DE69222567D1 DE69222567T DE69222567T DE69222567D1 DE 69222567 D1 DE69222567 D1 DE 69222567D1 DE 69222567 T DE69222567 T DE 69222567T DE 69222567 T DE69222567 T DE 69222567T DE 69222567 D1 DE69222567 D1 DE 69222567D1
Authority
DE
Germany
Prior art keywords
measuring
memory cell
remaining charge
charge
remaining
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 - Fee Related
Application number
DE69222567T
Other languages
English (en)
Other versions
DE69222567T2 (de
Inventor
Wei-Chou Fang
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.)
AT&T Corp
Original Assignee
AT&T Corp
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 AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of DE69222567D1 publication Critical patent/DE69222567D1/de
Publication of DE69222567T2 publication Critical patent/DE69222567T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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]
    • G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
    • G01R31/379—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator for lead-acid 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]
    • G01R31/389—Measuring internal impedance, internal conductance or related variables
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S320/00—Electricity: battery or capacitor charging or discharging
    • Y10S320/18—Indicator or display
DE69222567T 1991-05-31 1992-05-20 Verfahren zur Messung der verbleibenden Ladung einer Speicherzelle Expired - Fee Related DE69222567T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/708,963 US5241275A (en) 1991-05-31 1991-05-31 Method of measuring remaining capacity of a storage cell by comparing impedance plot characteristics

Publications (2)

Publication Number Publication Date
DE69222567D1 true DE69222567D1 (de) 1997-11-13
DE69222567T2 DE69222567T2 (de) 1998-04-09

Family

ID=24847910

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69229805T Expired - Fee Related DE69229805T2 (de) 1991-05-31 1992-05-20 Verfahren zur Bestimmung der verbleibenden Ladung einer Speicherzelle
DE69222567T Expired - Fee Related DE69222567T2 (de) 1991-05-31 1992-05-20 Verfahren zur Messung der verbleibenden Ladung einer Speicherzelle

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69229805T Expired - Fee Related DE69229805T2 (de) 1991-05-31 1992-05-20 Verfahren zur Bestimmung der verbleibenden Ladung einer Speicherzelle

Country Status (4)

Country Link
US (1) US5241275A (de)
EP (2) EP0516336B1 (de)
JP (1) JP2792784B2 (de)
DE (2) DE69229805T2 (de)

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Also Published As

Publication number Publication date
DE69222567T2 (de) 1998-04-09
JP2792784B2 (ja) 1998-09-03
EP0516336B1 (de) 1997-10-08
DE69229805T2 (de) 2000-03-16
DE69229805D1 (de) 1999-09-16
EP0516336A3 (en) 1993-08-18
JPH05135806A (ja) 1993-06-01
US5241275A (en) 1993-08-31
EP0516336A2 (de) 1992-12-02
EP0749016B1 (de) 1999-08-11
EP0749016A1 (de) 1996-12-18

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