IT1245421B - Regolatore di tensione a bassa caduta - Google Patents

Regolatore di tensione a bassa caduta

Info

Publication number
IT1245421B
IT1245421B ITTO910137A ITTO910137A IT1245421B IT 1245421 B IT1245421 B IT 1245421B IT TO910137 A ITTO910137 A IT TO910137A IT TO910137 A ITTO910137 A IT TO910137A IT 1245421 B IT1245421 B IT 1245421B
Authority
IT
Italy
Prior art keywords
voltage
capacitor
switches
input
switch
Prior art date
Application number
ITTO910137A
Other languages
English (en)
Inventor
Vanni Poletto
Marco Morelli
Bruno Murari
Original Assignee
Sgs Thomson Microelectronics
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 Sgs Thomson Microelectronics filed Critical Sgs Thomson Microelectronics
Priority to ITTO910137A priority Critical patent/IT1245421B/it
Publication of ITTO910137A0 publication Critical patent/ITTO910137A0/it
Priority to DE69210651T priority patent/DE69210651T2/de
Priority to EP92103172A priority patent/EP0501418B1/en
Priority to US07/842,294 priority patent/US5280233A/en
Priority to JP04135192A priority patent/JP3181966B2/ja
Publication of ITTO910137A1 publication Critical patent/ITTO910137A1/it
Application granted granted Critical
Publication of IT1245421B publication Critical patent/IT1245421B/it

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G05F1/59—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices including plural semiconductor devices as final control devices for a single load
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
    • G05F1/569—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Power Engineering (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Dc-Dc Converters (AREA)

Abstract

Viene descritto un regolatore di tensione (30) comprendente un primo interruttore di potenza (16) collegato fra i morsetti di ingresso (11) e di uscita (13); un condensatore di immagazzinamento (21), collegato al morsetto di ingresso attraverso un interruttore unidirezionale (18); un secondo interruttore di potenza (19), collegato fra il condensatore e il morsetto di ingresso; ed un elemento di regolazione (17) collegato al morsetto di uscita e pilotante gli interruttori di potenza (16,19) in modo da mantenere costante la tensione di uscita (V0). Per distribuire maggiormente le sollecitazioni elettriche e termiche ed ottenere una maggiore affidabilità e durata del regolatore, riducendo i disturbi di funzionamento dovuti alla commutazione dei due interruttori , tra l'elemento di regolazione (17) e gli interruttori (16,19) è interposto un dispositivo di pilotaggio (31) rilevante la tensione di ingresso (VA) e la tensione sul condensatore (VA') in modo da mantenere accesi entrambi gli interruttori fintanto che la tensione di ingresso è superiore a due soglie prefissate (VTH1,VTH2), da spegnere il secondo interruttore (19) quando la tensione di ingresso è minore della tensione sul condensatore (VA > VA') e diventa inferiore alla prima soglia (VA< VTH1), e da spegnere il primo interruttore (16) quando la tensione di ingresso è minore della tensione sul condensatore (VA< VA') e diventa inferiore alla seconda soglia (VA<VTH2).Figura 1.
ITTO910137A 1991-02-27 1991-02-27 Regolatore di tensione a bassa caduta IT1245421B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITTO910137A IT1245421B (it) 1991-02-27 1991-02-27 Regolatore di tensione a bassa caduta
DE69210651T DE69210651T2 (de) 1991-02-27 1992-02-25 Spannungsregler mit niedrigem Spannungsfall
EP92103172A EP0501418B1 (en) 1991-02-27 1992-02-25 Low-fall voltage regulator
US07/842,294 US5280233A (en) 1991-02-27 1992-02-26 Low-drop voltage regulator
JP04135192A JP3181966B2 (ja) 1991-02-27 1992-02-27 降圧型電圧調整器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO910137A IT1245421B (it) 1991-02-27 1991-02-27 Regolatore di tensione a bassa caduta

Publications (3)

Publication Number Publication Date
ITTO910137A0 ITTO910137A0 (it) 1991-02-27
ITTO910137A1 ITTO910137A1 (it) 1992-08-27
IT1245421B true IT1245421B (it) 1994-09-20

Family

ID=11408991

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910137A IT1245421B (it) 1991-02-27 1991-02-27 Regolatore di tensione a bassa caduta

Country Status (5)

Country Link
US (1) US5280233A (it)
EP (1) EP0501418B1 (it)
JP (1) JP3181966B2 (it)
DE (1) DE69210651T2 (it)
IT (1) IT1245421B (it)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5467009A (en) * 1994-05-16 1995-11-14 Analog Devices, Inc. Voltage regulator with multiple fixed plus user-selected outputs
US5736843A (en) * 1995-04-27 1998-04-07 Silicon Graphics, Inc. Efficient ultra low drop out power regulator
GB2307316B (en) * 1995-10-24 1999-12-29 Rohm Co Ltd Power supply apparatus
EP0782236A1 (en) * 1995-12-29 1997-07-02 Co.Ri.M.Me. Consorzio Per La Ricerca Sulla Microelettronica Nel Mezzogiorno Circuit for the protection against overcurrents in power electronic devices, and corresponding method
US5781002A (en) * 1996-02-23 1998-07-14 Linear Technology Corporation Anti-latch circuit for low dropout dual supply voltage regulator
FR2750514A1 (fr) * 1996-06-26 1998-01-02 Philips Electronics Nv Dispositif de regulation de tension a faible dissipation interne d'energie
FR2755317B1 (fr) * 1996-10-25 1999-01-15 Sgs Thomson Microelectronics Regulateur de tension a generation interne d'un signal logique
FR2756984B1 (fr) * 1996-12-05 1999-01-08 Gec Alsthom Syst Et Serv Alimentation de secours destinee a suppleer provisoirement a une carence d'une source d'alimentation principale
US6157178A (en) * 1998-05-19 2000-12-05 Cypress Semiconductor Corp. Voltage conversion/regulator circuit and method
DE69927004D1 (de) * 1999-06-16 2005-10-06 St Microelectronics Srl BICMOS / CMOS Spannungsregler mit kleiner Verlustspannung
FR2802315B1 (fr) * 1999-12-13 2002-03-01 St Microelectronics Sa Regulateur de tension a transistor ballast et a limiteur de courant
US6465996B2 (en) * 2000-03-08 2002-10-15 Denso Corporation Constant voltage circuit with a substitute circuit in case of input voltage lowering
JP2001282371A (ja) * 2000-03-31 2001-10-12 Seiko Instruments Inc ボルテージレギュレータ
FR2807846A1 (fr) * 2000-04-12 2001-10-19 St Microelectronics Sa Regulateur de tension a faible consommation electrique
US7400121B2 (en) * 2002-08-06 2008-07-15 Texas Instruments Incorporated Soft-start system for voltage regulator and method of implementing soft-start
US7112897B2 (en) * 2002-12-06 2006-09-26 Northrop Grumman Corporation Capacitor and switch components cooperation to maintain input voltage to target circuit at or above cut-off voltage until power circuit is able to maintain the input voltage
US6744242B1 (en) * 2003-01-14 2004-06-01 Fujitsu Limited Four-state switched decoupling capacitor system for active power stabilizer
US7088015B2 (en) * 2003-01-17 2006-08-08 Intersil Americas Inc. Smooth voltage regulation transition circuit having fast recovery
US7446514B1 (en) * 2004-10-22 2008-11-04 Marvell International Ltd. Linear regulator for use with electronic circuits
US7274176B2 (en) * 2004-11-29 2007-09-25 Stmicroelectronics Kk Regulator circuit having a low quiescent current and leakage current protection
DE102005061967B9 (de) * 2005-12-23 2013-03-28 Infineon Technologies Ag Leistungsversorgungsanordnung zum Bereitstellen eines Ausgangssignals mit einem vorbestimmten Ausgangssignalpegel
US7859240B1 (en) 2007-05-22 2010-12-28 Cypress Semiconductor Corporation Circuit and method for preventing reverse current flow into a voltage regulator from an output thereof
JP4937078B2 (ja) * 2007-10-22 2012-05-23 株式会社東芝 定電圧電源回路
US8773086B1 (en) * 2007-12-07 2014-07-08 Marvell International Ltd. Circuits and methods for dynamic voltage management
JP6296779B2 (ja) * 2013-12-18 2018-03-20 クラリオン株式会社 車載装置
GB2584457B (en) * 2019-06-04 2023-03-15 Andrews Darren Standing aid for children

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536921A1 (fr) * 1982-11-30 1984-06-01 Thomson Csf Regulateur a faible tension de dechet
IT1203335B (it) * 1987-02-23 1989-02-15 Sgs Microelettronica Spa Stabilizzatore di tensione a minima caduta di tensione,atto a sopportare transitori di tensione elevati
US4779037A (en) * 1987-11-17 1988-10-18 National Semiconductor Corporation Dual input low dropout voltage regulator
US5025203A (en) * 1989-10-02 1991-06-18 Motorola, Inc. Circuit for use with a voltage regulator

Also Published As

Publication number Publication date
US5280233A (en) 1994-01-18
ITTO910137A0 (it) 1991-02-27
JPH05108173A (ja) 1993-04-30
DE69210651D1 (de) 1996-06-20
ITTO910137A1 (it) 1992-08-27
DE69210651T2 (de) 1997-01-16
EP0501418A3 (en) 1993-04-21
JP3181966B2 (ja) 2001-07-03
EP0501418A2 (en) 1992-09-02
EP0501418B1 (en) 1996-05-15

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970227