JPS5734217A - Constant voltage apparatus - Google Patents

Constant voltage apparatus

Info

Publication number
JPS5734217A
JPS5734217A JP10969480A JP10969480A JPS5734217A JP S5734217 A JPS5734217 A JP S5734217A JP 10969480 A JP10969480 A JP 10969480A JP 10969480 A JP10969480 A JP 10969480A JP S5734217 A JPS5734217 A JP S5734217A
Authority
JP
Japan
Prior art keywords
voltage
circuit
transistor
switch
control
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.)
Pending
Application number
JP10969480A
Other languages
Japanese (ja)
Inventor
Naoyuki Konishi
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
Priority to JP10969480A priority Critical patent/JPS5734217A/en
Publication of JPS5734217A publication Critical patent/JPS5734217A/en
Pending 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
    • G05F1/59—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
    • G05F1/595—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 semiconductor devices connected in series

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)

Abstract

PURPOSE:To improve reliability by connecting control transistors for the 1st and 2nd control circuits between a load and a DC current source to control only one transistor when the other transistor gets out of order. CONSTITUTION:Control transistors 2 and 7 for the 1st and 2nd control circuits are installed between a load 3 and a DC current source 1 and a switch 12 is closed at normal status; an output voltage detecting circuit 13 outputs an opening signal to the switch 12 when the voltage of A of the circuit 13 exceeds the voltage of B of the circuit 13 only by a fixed value and outputs a closing signal when the voltage is reduced under the fixed value. If the 2nd transistor is conducted because of failure, it is decided that the voltage of A of the circuit 13 exceeds the voltage of B of the circuit 13, so that the switch 12 is closed. Thus, even if the 2nd transistor 2 is conducted, the output voltage can be controlled within a required voltage by inserting a voltage dividing resistance.
JP10969480A 1980-08-07 1980-08-07 Constant voltage apparatus Pending JPS5734217A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10969480A JPS5734217A (en) 1980-08-07 1980-08-07 Constant voltage apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10969480A JPS5734217A (en) 1980-08-07 1980-08-07 Constant voltage apparatus

Publications (1)

Publication Number Publication Date
JPS5734217A true JPS5734217A (en) 1982-02-24

Family

ID=14516824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10969480A Pending JPS5734217A (en) 1980-08-07 1980-08-07 Constant voltage apparatus

Country Status (1)

Country Link
JP (1) JPS5734217A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881023A (en) * 1988-03-04 1989-11-14 Hughes Aircraft Company Hybrid high speed voltage regulator with reduction of miller effect
US5329224A (en) * 1993-10-20 1994-07-12 Ford Motor Company Automotive voltage regulator circuit including serial voltage regulators
JP2010211788A (en) * 2009-02-10 2010-09-24 Seiko Instruments Inc Voltage regulator
DE102018200668A1 (en) * 2018-01-17 2019-07-18 Robert Bosch Gmbh Circuit for detecting circuit defects and avoiding overvoltages in regulators

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4881023A (en) * 1988-03-04 1989-11-14 Hughes Aircraft Company Hybrid high speed voltage regulator with reduction of miller effect
US5329224A (en) * 1993-10-20 1994-07-12 Ford Motor Company Automotive voltage regulator circuit including serial voltage regulators
JP2010211788A (en) * 2009-02-10 2010-09-24 Seiko Instruments Inc Voltage regulator
DE102018200668A1 (en) * 2018-01-17 2019-07-18 Robert Bosch Gmbh Circuit for detecting circuit defects and avoiding overvoltages in regulators
US11281246B2 (en) 2018-01-17 2022-03-22 Robert Bosch Gmbh Circuit for detecting circuit defects and for preventing overvoltages in controllers

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