EP0299292A3 - Longitudinal voltage regulator with reduced output reverse current - Google Patents

Longitudinal voltage regulator with reduced output reverse current Download PDF

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Publication number
EP0299292A3
EP0299292A3 EP88110506A EP88110506A EP0299292A3 EP 0299292 A3 EP0299292 A3 EP 0299292A3 EP 88110506 A EP88110506 A EP 88110506A EP 88110506 A EP88110506 A EP 88110506A EP 0299292 A3 EP0299292 A3 EP 0299292A3
Authority
EP
European Patent Office
Prior art keywords
voltage
voltage regulator
reverse current
reduced output
longitudinal voltage
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.)
Withdrawn
Application number
EP88110506A
Other languages
German (de)
French (fr)
Other versions
EP0299292A2 (en
Inventor
Gert Dipl.-Ing. Rudolph
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.)
STMicroelectronics GmbH
Original Assignee
SGS Thomson Microelectronics GmbH
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 GmbH filed Critical SGS Thomson Microelectronics GmbH
Publication of EP0299292A2 publication Critical patent/EP0299292A2/en
Publication of EP0299292A3 publication Critical patent/EP0299292A3/en
Withdrawn legal-status Critical Current

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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

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  • 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)

Abstract

Die Erfindung betrifft einen Längsspannungsregler für eine elektrische Energie speichernde Last, mit einem in einem Reglerlängszweig angeordneten Regelelement (Q1, Q2), das über einen Steuertransistor (Q3) von einem Fehlerverstärker (F) angesteuert wird, der eine Ab­ weichung einer der Reglerausgangsspannung (VA) propor­ tionalen Spannung von einer Referenzspannung (VREF) ausregelt. Erfindungsgemäß ist ein die Reglerausgangs­ spannung (VA) mit der Reglereingangsspannung (VE) vergleichender Komparator (Q4 bis Q7) vorgesehen, dessen Ausgang (K) einen steuerbaren Schalter (Q8) aktiviert, der ein Ausschalten des Steuertransistors (Q3) bewirkt, wenn die Reglereingangsspannung (VE) auf einen Wert unterhalb der Reglernennausgangsspannung abfällt. The invention relates to a longitudinal voltage regulator for an electrical energy storing load, with a in a control element (Q1, Q2) by a control transistor (Q3) Error amplifier (F) is driven, the Ab softening one of the controller output voltage (VA) proportions tional voltage from a reference voltage (VREF) straightened out. According to the invention is the controller output voltage (VA) with the controller input voltage (VE) comparative comparator (Q4 to Q7) provided, the Output (K) activates a controllable switch (Q8), which switches off the control transistor (Q3), when the regulator input voltage (VE) to a value drops below the nominal controller output voltage.

EP88110506A 1987-07-16 1988-06-30 Longitudinal voltage regulator with reduced output reverse current Withdrawn EP0299292A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3723579 1987-07-16
DE19873723579 DE3723579C1 (en) 1987-07-16 1987-07-16 Longitudinal voltage regulator

Publications (2)

Publication Number Publication Date
EP0299292A2 EP0299292A2 (en) 1989-01-18
EP0299292A3 true EP0299292A3 (en) 1989-05-10

Family

ID=6331728

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110506A Withdrawn EP0299292A3 (en) 1987-07-16 1988-06-30 Longitudinal voltage regulator with reduced output reverse current

Country Status (3)

Country Link
EP (1) EP0299292A3 (en)
JP (1) JPH01158515A (en)
DE (1) DE3723579C1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2676156B1 (en) * 1991-04-30 1995-08-04 Sgs Thomson Microelectronics PERIODIC EXCITATION CIRCUIT AT A VARIABLE LEVEL OF A CAPACITIVE LOAD.
DE19542823C2 (en) * 1995-11-16 1997-09-04 Sgs Thomson Microelectronics Hysteresis comparator circuit for use in a voltage regulation circuit
JP4728741B2 (en) * 2005-08-23 2011-07-20 フリースケール セミコンダクター インコーポレイテッド Discharge device and DC power supply system
JP5331515B2 (en) * 2009-02-27 2013-10-30 新日本無線株式会社 Stabilized power circuit
JP2011238103A (en) * 2010-05-12 2011-11-24 Renesas Electronics Corp Power supply circuit
JP6130112B2 (en) * 2012-09-07 2017-05-17 エスアイアイ・セミコンダクタ株式会社 Voltage regulator
DE102015216928B4 (en) 2015-09-03 2021-11-04 Dialog Semiconductor (Uk) Limited Overvoltage clamp controller and procedures

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554990A1 (en) * 1983-11-15 1985-05-17 Ates Deutschland Halbleiter SERIES VOLTAGE REGULATOR CIRCUIT
JPS60163113A (en) * 1984-02-02 1985-08-26 Seiko Instr & Electronics Ltd Constant voltage circuit for mos integrated circuit
JPS6155718A (en) * 1984-08-28 1986-03-20 Fujitsu Ltd Stabilized electric power supply device
EP0238803A1 (en) * 1986-01-28 1987-09-30 Nec Corporation Stabilized power-supply circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5244420B2 (en) * 1973-06-11 1977-11-08
IT1120243B (en) * 1979-12-19 1986-03-19 Merloni Elettrodomestici Spa IMPROVEMENT IN DATA PRESERVATION SYSTEMS IN DIGITAL CIRCUITS IN THE TEMPORARY LACK OF ELECTRIC POWER SUPPLY
DE3016244A1 (en) * 1980-04-26 1981-10-29 Volkswagenwerk Ag, 3180 Wolfsburg Peak voltage storage circuit - has switch control forming, in conjunction with storage capacitor, differential component for voltage applied to capacitor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554990A1 (en) * 1983-11-15 1985-05-17 Ates Deutschland Halbleiter SERIES VOLTAGE REGULATOR CIRCUIT
JPS60163113A (en) * 1984-02-02 1985-08-26 Seiko Instr & Electronics Ltd Constant voltage circuit for mos integrated circuit
JPS6155718A (en) * 1984-08-28 1986-03-20 Fujitsu Ltd Stabilized electric power supply device
EP0238803A1 (en) * 1986-01-28 1987-09-30 Nec Corporation Stabilized power-supply circuit

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 220 (P-482)[2276], 31. Juli 1986; & JP-A-61 55 718 (FUJITSU LTD) 20-03-1986 *
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 7 (P-419)[2064], 11. Januar 1986; & JP-A-60 163 113 (SEIKO DENSHI KOGYO K.K.) 26-08-1985 *

Also Published As

Publication number Publication date
EP0299292A2 (en) 1989-01-18
DE3723579C1 (en) 1989-02-16
JPH01158515A (en) 1989-06-21

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