GB2349757B - Watchdog circuit - Google Patents

Watchdog circuit

Info

Publication number
GB2349757B
GB2349757B GB9906365A GB9906365A GB2349757B GB 2349757 B GB2349757 B GB 2349757B GB 9906365 A GB9906365 A GB 9906365A GB 9906365 A GB9906365 A GB 9906365A GB 2349757 B GB2349757 B GB 2349757B
Authority
GB
United Kingdom
Prior art keywords
watchdog circuit
watchdog
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.)
Expired - Fee Related
Application number
GB9906365A
Other versions
GB9906365D0 (en
GB2349757A (en
Inventor
Anthony Paul Banks
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.)
NEC Technologies UK Ltd
Original Assignee
NEC Technologies UK 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 NEC Technologies UK Ltd filed Critical NEC Technologies UK Ltd
Priority to GB9906365A priority Critical patent/GB2349757B/en
Publication of GB9906365D0 publication Critical patent/GB9906365D0/en
Priority to JP2000006530A priority patent/JP2000278108A/en
Priority to JP2000073708A priority patent/JP2000307285A/en
Publication of GB2349757A publication Critical patent/GB2349757A/en
Application granted granted Critical
Publication of GB2349757B publication Critical patent/GB2349757B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703—Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0751—Error or fault detection not based on redundancy
    • G06F11/0754—Error or fault detection not based on redundancy by exceeding limits
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3883—Arrangements for mounting batteries or battery chargers

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Protection Of Static Devices (AREA)
  • Electronic Switches (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Pulse Circuits (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Combinations Of Printed Boards (AREA)
GB9906365A 1999-03-20 1999-03-20 Watchdog circuit Expired - Fee Related GB2349757B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9906365A GB2349757B (en) 1999-03-20 1999-03-20 Watchdog circuit
JP2000006530A JP2000278108A (en) 1999-03-20 2000-01-14 Watchdog circuit and charging controller
JP2000073708A JP2000307285A (en) 1999-03-20 2000-03-16 Intermediate frame for circuit board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9906365A GB2349757B (en) 1999-03-20 1999-03-20 Watchdog circuit

Publications (3)

Publication Number Publication Date
GB9906365D0 GB9906365D0 (en) 1999-05-12
GB2349757A GB2349757A (en) 2000-11-08
GB2349757B true GB2349757B (en) 2003-07-16

Family

ID=10849968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9906365A Expired - Fee Related GB2349757B (en) 1999-03-20 1999-03-20 Watchdog circuit

Country Status (2)

Country Link
JP (2) JP2000278108A (en)
GB (1) GB2349757B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6859013B2 (en) * 2002-04-03 2005-02-22 Black & Decker Inc. Battery charger with protection circuitry
CN101360288B (en) * 2007-08-03 2012-09-12 宇龙计算机通信科技(深圳)有限公司 Bi-mode mobile phone and battery protection circuit thereof
JP2009130181A (en) 2007-11-26 2009-06-11 Ｎｅｃディスプレイソリューションズ株式会社 Electronic circuit board, and method and structure for shielding electronic circuit board
JP5313635B2 (en) * 2008-11-10 2013-10-09 株式会社マキタ Electric tool charging system, electric tool battery pack, and electric tool charger
JP6298648B2 (en) * 2014-02-17 2018-03-20 矢崎総業株式会社 Backup signal generation circuit for load control
JP2020512688A (en) * 2017-03-09 2020-04-23 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． Consumer electronics mainboards and terminals
CN108155788A (en) * 2017-12-07 2018-06-12 中国航空工业集团公司西安航空计算技术研究所 A kind of adjustable energy supply startup control circuit of voltage threshold
CN108711689B (en) * 2018-04-24 2020-03-24 番禺得意精密电子工业有限公司 Electrical connector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403302A (en) * 1980-10-30 1983-09-06 Essex Group Inc. Automatic resetting of control system for loss of time reference
GB2120428A (en) * 1982-05-19 1983-11-30 Nissan Motor Monitoring apparatus for control system with microcomputer
US4600987A (en) * 1982-12-08 1986-07-15 Pitney Bowes Inc. Monitoring circuit for an electronic postage meter
WO1988004074A1 (en) * 1986-11-26 1988-06-02 Robert Bosch Gmbh Circuit for monitoring a pulse train
US4893348A (en) * 1987-09-09 1990-01-09 Mitsubishi Denki Kabushiki Kaisha Power source control device in car telephone mobile station system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4403302A (en) * 1980-10-30 1983-09-06 Essex Group Inc. Automatic resetting of control system for loss of time reference
GB2120428A (en) * 1982-05-19 1983-11-30 Nissan Motor Monitoring apparatus for control system with microcomputer
US4600987A (en) * 1982-12-08 1986-07-15 Pitney Bowes Inc. Monitoring circuit for an electronic postage meter
WO1988004074A1 (en) * 1986-11-26 1988-06-02 Robert Bosch Gmbh Circuit for monitoring a pulse train
US4893348A (en) * 1987-09-09 1990-01-09 Mitsubishi Denki Kabushiki Kaisha Power source control device in car telephone mobile station system

Also Published As

Publication number Publication date
GB9906365D0 (en) 1999-05-12
GB2349757A (en) 2000-11-08
JP2000307285A (en) 2000-11-02
JP2000278108A (en) 2000-10-06

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060320