HK77297A - Power supply loss sensor - Google Patents

Power supply loss sensor

Info

Publication number
HK77297A
HK77297A HK77297A HK77297A HK77297A HK 77297 A HK77297 A HK 77297A HK 77297 A HK77297 A HK 77297A HK 77297 A HK77297 A HK 77297A HK 77297 A HK77297 A HK 77297A
Authority
HK
Hong Kong
Prior art keywords
power supply
loss sensor
supply loss
sensor
power
Prior art date
Application number
HK77297A
Other languages
English (en)
Inventor
David Andrew Inglis
Hyun Lee
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
Publication of HK77297A publication Critical patent/HK77297A/xx

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/324—Power saving characterised by the action undertaken by lowering clock frequency
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • 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
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Logic Circuits (AREA)
HK77297A 1992-12-22 1997-06-05 Power supply loss sensor HK77297A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/994,732 US5457414A (en) 1992-12-22 1992-12-22 Power supply loss sensor

Publications (1)

Publication Number Publication Date
HK77297A true HK77297A (en) 1997-06-13

Family

ID=25540986

Family Applications (1)

Application Number Title Priority Date Filing Date
HK77297A HK77297A (en) 1992-12-22 1997-06-05 Power supply loss sensor

Country Status (5)

Country Link
US (1) US5457414A (ja)
EP (1) EP0604044B1 (ja)
JP (1) JP3484212B2 (ja)
DE (1) DE69309021T2 (ja)
HK (1) HK77297A (ja)

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* Cited by examiner, † Cited by third party
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GB9423051D0 (en) * 1994-11-15 1995-01-04 Sgs Thomson Microelectronics A voltage level converter
EP0782268B1 (en) * 1995-12-29 2002-04-24 STMicroelectronics S.r.l. Supply voltages switch circuit
FR2755317B1 (fr) * 1996-10-25 1999-01-15 Sgs Thomson Microelectronics Regulateur de tension a generation interne d'un signal logique
US5838171A (en) * 1996-11-22 1998-11-17 National Semiconductor Corporation Low power real-time clock circuit having system and battery power arbitration
US6137192A (en) 1998-05-15 2000-10-24 Energenius, Inc. Embedded backup energy storage unit
US6160430A (en) * 1999-03-22 2000-12-12 Ati International Srl Powerup sequence artificial voltage supply circuit
US6178516B1 (en) * 1999-06-11 2001-01-23 Mattel, Inc. Electronic apparatus having a low voltage auto-reset circuit
US6556562B1 (en) 1999-09-29 2003-04-29 At&T Corp. System to provide lifeline IP telephony service on cable access networks
US6310497B1 (en) 2000-05-01 2001-10-30 Agere Systems Guardian Corp. Power supply loss detector method and apparatus
US6560083B2 (en) * 2000-12-27 2003-05-06 Intel Corporation Dynamic critical battery detection mechanism
DE10101971A1 (de) * 2001-01-17 2002-07-25 Siemens Ag Elektronische Zustandsspeichervorrichtung für die Verfügbarkeit von Versorgungsspannungen
US6819539B1 (en) 2001-08-20 2004-11-16 Cypress Semiconductor Corp. Method for circuit recovery from overstress conditions
US7142400B1 (en) 2002-03-27 2006-11-28 Cypress Semiconductor Corp. Method and apparatus for recovery from power supply transient stress conditions
US20040012265A1 (en) * 2002-05-23 2004-01-22 International Business Machines Corporation System and method to control redundant power supplies selection
FR2868220B1 (fr) * 2004-03-23 2008-02-15 Thales Sa Procede et dispositif d'alimentation electrique d'un equipement
CN100389373C (zh) * 2004-12-25 2008-05-21 鸿富锦精密工业（深圳）有限公司 电源电压产生电路
US7830183B2 (en) * 2008-12-11 2010-11-09 Texas Instruments Incorporated Comparator with reduced power consumption
JP6046380B2 (ja) * 2011-08-31 2016-12-14 サターン ライセンシング エルエルシーＳａｔｕｒｎ Ｌｉｃｅｎｓｉｎｇ ＬＬＣ スイッチ、充電監視装置、及び充電池モジュール

Family Cites Families (23)

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Publication number Priority date Publication date Assignee Title
US4122359A (en) * 1977-04-27 1978-10-24 Honeywell Inc. Memory protection arrangement
US4463270A (en) * 1980-07-24 1984-07-31 Fairchild Camera & Instrument Corp. MOS Comparator circuit
US4461965A (en) * 1980-08-18 1984-07-24 National Semiconductor Corporation High speed CMOS sense amplifier
USRE32200E (en) * 1980-11-03 1986-07-08 Fairchild Semiconductor Corporation MOS battery backup controller for microcomputer random access memory
WO1982004345A1 (en) * 1981-05-27 1982-12-09 Aswell Cecil James Power supply control for integrated circuit
US4422163A (en) * 1981-09-03 1983-12-20 Vend-A-Copy, Inc. Power down circuit for data protection in a microprocessor-based system
JPS58170213A (ja) * 1982-03-31 1983-10-06 Toshiba Corp 電圧比較回路
US4549100A (en) * 1983-05-06 1985-10-22 Rockwell International Corporation MOS Voltage comparator and method
US4754160A (en) * 1984-08-23 1988-06-28 Intersil, Inc. Power supply switching circuit
EP0269767B1 (en) * 1986-11-06 1993-03-17 Halliburton Company Power supply apparatus
US4730121B1 (en) * 1987-03-11 1998-09-15 Dallas Semiconductor Power controller for circuits with battery backup
US4908790A (en) * 1988-03-10 1990-03-13 Dallas Semiconductor Corporation Backup battery switching circuitry for a microcomputer or a microprocessor
US4884242A (en) * 1988-05-26 1989-11-28 Applied Automation, Inc. Backup power system for dynamic memory
JPH0695350B2 (ja) * 1988-08-12 1994-11-24 三菱電機株式会社 Ｉｃメモリカード用バッテリ回路
US4989261A (en) * 1988-12-09 1991-01-29 Dallas Semiconductor Corporation Power supply intercept with reference output
US4996453A (en) * 1989-07-28 1991-02-26 Dallas Semiconductor Power down circuit for low-power circuit with dual supply voltages
US5223748A (en) * 1990-12-11 1993-06-29 Dallas Semiconductor Corp. Battery manager
US5168206A (en) * 1990-12-21 1992-12-01 Dallas Semiconductor Corp. Battery manager chip with connections for redundant backup battery
US5233748A (en) * 1991-01-30 1993-08-10 Curtis Logan Adjustable oval mat cutter
EP0509585A1 (en) * 1991-04-15 1992-10-21 Koninklijke Philips Electronics N.V. Clocked comparator with offset-voltage compensation
US5187396A (en) * 1991-05-22 1993-02-16 Benchmarq Microelectronics, Inc. Differential comparator powered from signal input terminals for use in power switching applications
US5254888A (en) * 1992-03-27 1993-10-19 Picopower Technology Inc. Switchable clock circuit for microprocessors to thereby save power
US5280198A (en) * 1992-11-06 1994-01-18 Intel Corporation Power supply level detector

Also Published As

Publication number Publication date
US5457414A (en) 1995-10-10
EP0604044B1 (en) 1997-03-19
DE69309021T2 (de) 1997-06-19
EP0604044A1 (en) 1994-06-29
JPH06245409A (ja) 1994-09-02
DE69309021D1 (de) 1997-04-24
JP3484212B2 (ja) 2004-01-06

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)