DE3421726C2 - - Google Patents

Info

Publication number
DE3421726C2
DE3421726C2 DE3421726A DE3421726A DE3421726C2 DE 3421726 C2 DE3421726 C2 DE 3421726C2 DE 3421726 A DE3421726 A DE 3421726A DE 3421726 A DE3421726 A DE 3421726A DE 3421726 C2 DE3421726 C2 DE 3421726C2
Authority
DE
Germany
Prior art keywords
transistor
current
base
voltage
emitter
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
Application number
DE3421726A
Other languages
German (de)
English (en)
Other versions
DE3421726A1 (de
Inventor
Koji Takeda
Takeshi Itami Hyogo Jp Sugimoto
Yusuke Itami Hyogen Jp Yamada
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of DE3421726A1 publication Critical patent/DE3421726A1/de
Application granted granted Critical
Publication of DE3421726C2 publication Critical patent/DE3421726C2/de
Granted legal-status Critical Current

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
    • G05F1/565—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
    • G05F1/573—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 with overcurrent detector
    • G05F1/5735—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 with overcurrent detector with foldback current limiting
    • 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
    • Y10S323/00—Electricity: power supply or regulation systems
    • Y10S323/907—Temperature compensation of semiconductor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
  • Emergency Protection Circuit Devices (AREA)
DE19843421726 1983-06-15 1984-06-12 Konstantspannungs-versorgungsschaltung Granted DE3421726A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58108636A JPS60521A (ja) 1983-06-15 1983-06-15 電流制限保護回路

Publications (2)

Publication Number Publication Date
DE3421726A1 DE3421726A1 (de) 1984-12-20
DE3421726C2 true DE3421726C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-01-12

Family

ID=14489817

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843421726 Granted DE3421726A1 (de) 1983-06-15 1984-06-12 Konstantspannungs-versorgungsschaltung

Country Status (3)

Country Link
US (1) US4593338A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS60521A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3421726A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006043614A1 (de) * 2006-09-16 2008-03-27 Conti Temic Microelectronic Gmbh Diskreter strombegrenzter Spannungsregler

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4873673A (en) * 1986-12-03 1989-10-10 Hitachi, Ltd. Driver circuit having a current mirror circuit
US4912393A (en) * 1986-03-12 1990-03-27 Beltone Electronics Corporation Voltage regulator with variable reference outputs for a hearing aid
JPH083766B2 (ja) * 1986-05-31 1996-01-17 株式会社東芝 半導体集積回路の電源電圧降下回路
US4835649A (en) * 1987-12-14 1989-05-30 United Technologies Corporation Self-latching current limiter
US5006949A (en) * 1990-04-30 1991-04-09 Teledyne Industries, Inc. Temperature compensated overload trip level solid state relay
US5343141A (en) * 1992-06-09 1994-08-30 Cherry Semiconductor Corporation Transistor overcurrent protection circuit
JPH06162772A (ja) * 1992-11-25 1994-06-10 Sharp Corp 電源電圧降圧回路
US5570060A (en) * 1995-03-28 1996-10-29 Sgs-Thomson Microelectronics, Inc. Circuit for limiting the current in a power transistor
US5712555A (en) * 1996-02-13 1998-01-27 Hughes Electronics Voltage regulation for access cards
GB2334600A (en) 1998-02-24 1999-08-25 Lucas Ind Plc Pre-regulated power supplies for ECUs
JP3065605B2 (ja) * 1998-10-12 2000-07-17 シャープ株式会社 直流安定化電源装置
US7173405B2 (en) * 2003-07-10 2007-02-06 Atmel Corporation Method and apparatus for current limitation in voltage regulators with improved circuitry for providing a control voltage
ITTO20030533A1 (it) * 2003-07-10 2005-01-11 Atmel Corp Procedimento e circuito per la limitazione di corrente in
JP3610556B1 (ja) * 2003-10-21 2005-01-12 ローム株式会社 定電圧電源装置
JP4353826B2 (ja) * 2004-02-26 2009-10-28 株式会社リコー 定電圧回路
US7269193B2 (en) * 2004-06-28 2007-09-11 Fuji Film Corp. Semiconductor laser driving circuit and image recording apparatus
US7535691B2 (en) * 2006-03-30 2009-05-19 Power Integrations, Inc. Method and apparatus for an in-rush current limiting circuit
US8169202B2 (en) * 2009-02-25 2012-05-01 Mediatek Inc. Low dropout regulators

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3078410A (en) * 1959-09-22 1963-02-19 North American Aviation Inc Short circuit protection device
US3391330A (en) * 1965-10-19 1968-07-02 Gen Electric Direct current power supplies with overload protection
US3445751A (en) * 1966-11-25 1969-05-20 Rca Corp Current limiting voltage regulator
JPS5244420B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1973-06-11 1977-11-08
NL7803607A (nl) * 1978-04-05 1979-10-09 Philips Nv Spanningsreferentieschakeling.
US4319179A (en) * 1980-08-25 1982-03-09 Motorola, Inc. Voltage regulator circuitry having low quiescent current drain and high line voltage withstanding capability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006043614A1 (de) * 2006-09-16 2008-03-27 Conti Temic Microelectronic Gmbh Diskreter strombegrenzter Spannungsregler

Also Published As

Publication number Publication date
JPS60521A (ja) 1985-01-05
JPH0474731B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-11-27
US4593338A (en) 1986-06-03
DE3421726A1 (de) 1984-12-20

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee