JPH0546571B2 - - Google Patents

Info

Publication number
JPH0546571B2
JPH0546571B2 JP1716186A JP1716186A JPH0546571B2 JP H0546571 B2 JPH0546571 B2 JP H0546571B2 JP 1716186 A JP1716186 A JP 1716186A JP 1716186 A JP1716186 A JP 1716186A JP H0546571 B2 JPH0546571 B2 JP H0546571B2
Authority
JP
Japan
Prior art keywords
circuit
power supply
output
pnp transistor
diode
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 - Lifetime
Application number
JP1716186A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62174814A (ja
Inventor
Masahiro Kitamura
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 IC Microcomputer Systems Co Ltd
Original Assignee
NEC IC Microcomputer Systems Co 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 IC Microcomputer Systems Co Ltd filed Critical NEC IC Microcomputer Systems Co Ltd
Priority to JP61017161A priority Critical patent/JPS62174814A/ja
Priority to DE8787101178T priority patent/DE3780334T2/de
Priority to EP19870101178 priority patent/EP0238803B1/en
Priority to US07/008,187 priority patent/US4774450A/en
Publication of JPS62174814A publication Critical patent/JPS62174814A/ja
Publication of JPH0546571B2 publication Critical patent/JPH0546571B2/ja
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
    • G05F1/571—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 overvoltage detector
    • 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)
  • 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)
JP61017161A 1986-01-28 1986-01-28 安定化電源回路 Granted JPS62174814A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP61017161A JPS62174814A (ja) 1986-01-28 1986-01-28 安定化電源回路
DE8787101178T DE3780334T2 (de) 1986-01-28 1987-01-28 Stabilisierte konstantstromversorgung.
EP19870101178 EP0238803B1 (en) 1986-01-28 1987-01-28 Stabilized power-supply circuit
US07/008,187 US4774450A (en) 1986-01-28 1987-01-28 Stabilized power-supply circuit connectable with auxiliary electric source without an intermediary blocking diode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61017161A JPS62174814A (ja) 1986-01-28 1986-01-28 安定化電源回路

Publications (2)

Publication Number Publication Date
JPS62174814A JPS62174814A (ja) 1987-07-31
JPH0546571B2 true JPH0546571B2 (US20020128544A1-20020912-P00008.png) 1993-07-14

Family

ID=11936241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61017161A Granted JPS62174814A (ja) 1986-01-28 1986-01-28 安定化電源回路

Country Status (4)

Country Link
US (1) US4774450A (US20020128544A1-20020912-P00008.png)
EP (1) EP0238803B1 (US20020128544A1-20020912-P00008.png)
JP (1) JPS62174814A (US20020128544A1-20020912-P00008.png)
DE (1) DE3780334T2 (US20020128544A1-20020912-P00008.png)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63247668A (ja) * 1987-04-02 1988-10-14 Sharp Corp 電圧レベル判別装置
DE3723579C1 (de) * 1987-07-16 1989-02-16 Sgs Halbleiterbauelemente Gmbh Laengsspannungsregler
US4779037A (en) * 1987-11-17 1988-10-18 National Semiconductor Corporation Dual input low dropout voltage regulator
DE3809481A1 (de) * 1988-03-22 1989-10-12 Philips Patentverwaltung Schaltungsanordnung zur erzeugung einer impuls-versorgungsspannung fuer einen verbraucher aus einer gleichspannung
US4908523A (en) * 1988-04-04 1990-03-13 Motorola, Inc. Electronic circuit with power drain control
US5066901A (en) * 1990-09-18 1991-11-19 National Semiconductor Corporation Transient protected isolator output stage
US5227666A (en) * 1990-12-17 1993-07-13 Cybex Corporation Power sharing switching circuit
JP3329017B2 (ja) * 1993-08-25 2002-09-30 ソニー株式会社 電源供給回路及び方法
JP2925470B2 (ja) * 1995-03-17 1999-07-28 東光株式会社 直列制御形レギュレータ
US6465996B2 (en) 2000-03-08 2002-10-15 Denso Corporation Constant voltage circuit with a substitute circuit in case of input voltage lowering
US6978386B2 (en) * 2000-12-28 2005-12-20 Ge Fanuc Automation North America, Inc. Method and apparatus for regulating current for programmable logic controllers
US6987822B2 (en) * 2001-03-13 2006-01-17 Micron Technology, Inc. Circuit and method for reducing noise interference in digital differential input receivers

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573483A (en) * 1969-05-02 1971-04-06 Essex International Inc Power supply control apparatus
GB1428661A (en) * 1972-03-15 1976-03-17 Varta Great Britain Ltd Stand-by electric power supply units
US3809999A (en) * 1973-04-19 1974-05-07 Gen Electric Direct current voltage regulator
US4181842A (en) * 1976-09-13 1980-01-01 Honeywell Inc. D.C. monitoring circuit
US4388706A (en) * 1980-12-01 1983-06-14 General Electric Company Memory protection arrangement
US4400625A (en) * 1981-11-30 1983-08-23 Reliance Electric Company Standby A-C power system with transfer compensation circuitry
US4400626A (en) * 1982-02-24 1983-08-23 Rockwell International Corporation Power distribution system with means for sensing emergency condition and reducing standby power
US4510400A (en) * 1982-08-12 1985-04-09 Zenith Electronics Corporation Switching regulator power supply
SU1121659A1 (ru) * 1983-04-06 1984-10-30 Ленинградский Ордена Ленина Электротехнический Институт Им.В.И.Ульянова /Ленина/ Импульсный стабилизатор напр жени
US4564767A (en) * 1983-11-07 1986-01-14 Tii Industries, Inc. Uninterruptible switching power supply system
JPS61160124A (ja) * 1984-12-29 1986-07-19 Hitachi Ltd メモリ給電方式

Also Published As

Publication number Publication date
EP0238803B1 (en) 1992-07-15
DE3780334D1 (de) 1992-08-20
US4774450A (en) 1988-09-27
JPS62174814A (ja) 1987-07-31
EP0238803A1 (en) 1987-09-30
DE3780334T2 (de) 1993-03-04

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Legal Events

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EXPY Cancellation because of completion of term