GB9608135D0 - A mains powered alarm device having a rechargeable battery backup - Google Patents

A mains powered alarm device having a rechargeable battery backup

Info

Publication number
GB9608135D0
GB9608135D0 GBGB9608135.1A GB9608135A GB9608135D0 GB 9608135 D0 GB9608135 D0 GB 9608135D0 GB 9608135 A GB9608135 A GB 9608135A GB 9608135 D0 GB9608135 D0 GB 9608135D0
Authority
GB
United Kingdom
Prior art keywords
rechargeable battery
alarm device
battery backup
mains powered
powered alarm
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
GBGB9608135.1A
Other versions
GB2312343A (en
GB2312343B (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.)
EI Technology Ltd
Original Assignee
EI Technology 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
Priority to IE960289A priority Critical patent/IES960289A2/en
Application filed by EI Technology Ltd filed Critical EI Technology Ltd
Priority to GB9608135A priority patent/GB2312343B/en
Publication of GB9608135D0 publication Critical patent/GB9608135D0/en
Publication of GB2312343A publication Critical patent/GB2312343A/en
Application granted granted Critical
Publication of GB2312343B publication Critical patent/GB2312343B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/181—Prevention or correction of operating errors due to failing power supply
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H02J7/0049—Detection of fully charged condition
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
GB9608135A 1996-04-15 1996-04-19 A mains powered alarm device having a rechargeable battery backup Expired - Lifetime GB2312343B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IE960289A IES960289A2 (en) 1996-04-15 1996-04-15 A mains powered alarm device having a rechargeable battery backup
GB9608135A GB2312343B (en) 1996-04-15 1996-04-19 A mains powered alarm device having a rechargeable battery backup

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IE960289A IES960289A2 (en) 1996-04-15 1996-04-15 A mains powered alarm device having a rechargeable battery backup
GB9608135A GB2312343B (en) 1996-04-15 1996-04-19 A mains powered alarm device having a rechargeable battery backup

Publications (3)

Publication Number Publication Date
GB9608135D0 true GB9608135D0 (en) 1996-06-26
GB2312343A GB2312343A (en) 1997-10-22
GB2312343B GB2312343B (en) 2000-04-19

Family

ID=26309171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9608135A Expired - Lifetime GB2312343B (en) 1996-04-15 1996-04-19 A mains powered alarm device having a rechargeable battery backup

Country Status (2)

Country Link
GB (1) GB2312343B (en)
IE (1) IES960289A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0026102D0 (en) * 2000-10-25 2000-12-13 Af Switchgear & Control Panels System reliability module
US20040119341A1 (en) * 2002-09-16 2004-06-24 Hickle Randall S. Battery backup method and system
AT507437B1 (en) 2008-10-31 2010-05-15 Moeller Gebaeudeautomation Gmbh POWER SUPPLY
US8947230B1 (en) * 2013-07-16 2015-02-03 Leeo, Inc. Electronic device with environmental monitoring
CN104777430B (en) * 2015-04-30 2017-09-22 西安科技大学 Switching Power Supply dead electricity and accumulator cell charging and discharging detection indicating circuit and its design method
AU2021245122A1 (en) * 2021-02-18 2022-01-13 Emerald Planet Environmental Pty Ltd Smoke alarm

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4138670B2 (en) * 1977-01-03 1994-07-26 Pittaway Corp A.C. powered detecting device with battery backup
US4972181A (en) * 1987-02-05 1990-11-20 Fyrnetics, Inc. A. C. powered smoke detector with back-up battery supervision circuit
DE3942288C1 (en) * 1989-12-21 1991-03-14 Scheidt & Bachmann Gmbh, 4050 Moenchengladbach, De
AUPM744794A0 (en) * 1994-08-15 1994-09-08 Garrick, Gilbert Alain Lindsay Smoke alarm system with standby battery and elv reactive primary power supply

Also Published As

Publication number Publication date
GB2312343A (en) 1997-10-22
IES68845B2 (en) 1996-07-10
GB2312343B (en) 2000-04-19
IES960289A2 (en) 1996-07-10

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Legal Events

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

Expiry date: 20160418